Humpback chub Citations through 2005

(1032 citations)
 

 Kolb, E. and E. Kolb. 1914. Experiences in the Grand Canyon. National Geographic Magazine 26(2):99-184.
 

 Jordan, D.S., B.W. Evermann and H.W. Clark. 1930. Checklist of fishes and fish-like vertebrates of North and Middle America north of the northern boundary of Venezuela and Columbia. U.S. Fish and Game Commission, Part II, Appendix 10:1-670
 

 Miller, R.R. 1944. Letter dated 28 August 1944 pertaining to a list of fishes occurring in Grand Canyon National Park. No source.
 

 Miller, R.R. 1946. Gila sypha a remarkable new species of Cyprinid fish from the Colorado River in Grand Canyon, Arizona. Journal of the Washington Academy of Science 36:409-415.
 

 Miller, R.R. 1949. Keys for the identification of the fishes of Arizona. University of Michigan, Museum Zoology 1949:1-8.
 

 Douglas, P.A. 1952. Notes on the spawning of humpback sucker, Xyrauchen texanus. California Fish and Game 38:149-155.
 

 Miller, R.R. 1955. Fish remains from archeological sites in the lower Colorado River basin, Arizona. Papers of the Michigan Academy of Science, Arts and Letters 40(12):125-136.
 

 Moeller, K.L., L.M. Malinowski, L.M. and J.F. Hoffecker. 1955. Analysis of potential impacts of Flaming Gorge Dam hydropower operations on archaeological sites. Argonne National Laboratory, Illinois. 99 pages.
 

 Wallis, O.L. 1955. Listing of collection of humpback chubs from Spencer Creek. In R.R. Miller, ed. University of Michigan Collection Records of Humpback Chubs and Unpublished Field Notes Pertaining to the Collection of Humpback Chubs.
 

 Smith, G.R. 1959. Annotated checklist of fishes of Glen Canyon. In A.M. Woodbury, ed. Ecological Studies of the Flora and Fauna in Glen Canyon. University of Utah Press, Salt Lake City.
 

 Smith, G.R., G.G. Musser and D.B. McDonald. 1959. Appendix A, aquatic survey tabulation. In A.M. Woodbury, ed. Ecological Studies of the Flora and Fauna in Glen Canyon. University of Utah Press, Salt Lake City.
 

 Woodbury, A.M. 1959. Ecological studies of the flora and fauna in Glen Canyon. University of Utah Press, Salt Lake City. 276 pages.
 

 Bosley, C.E. 1960. Pre-impoundment study of the Flaming Gorge Reservoir Wyoming Game and Fish Commission, Cheyenne. Fishery Technical report. Federal Aid Project F-25-R-l. Wyoming Game and Fish Commission, Cheyenne. 81 pages.
 

 Dotson, P. 1960. Notes on diseases, parasites, food, and condition of Green River fishes, 1959. Pages 169-175 in A.M. Woodbury, ed. Ecological Studies of the Flora and Fauna of Flaming Gorge Reservoir Basin, Utah and Wyoming. University of Utah Anthropological Paper 48, Salt Lake City.
 

 Flowers, S., H.H. Hall, G.T. Groves, D.M. Rees, B.C. Ho, G.F. Edmunds, G.G. Muser, J. Musser, J. Sessions, A.R. Gaufin, A.R. Gaufin, G.R. Smith, P. Dotson, J.M. Legler, C.M. White, W.H. Behle, S.D. Durrant and N.K. Dean. 1960. Ecological studies of the flora and fauna of Flaming Gorge Reservoir basin, Utah and Wyoming. University of Utah, Anthropological Papers No. 48, Upper Colorado River Basin Series No 3, University of Utah Press, Salt Lake City. 243 pages.
 

 Gaufin, A.R., G.R. Smith and P. Dotson. 1960. Aquatic survey of the Green River and tributaries within the Flaming Gorge Reservoir basin, appendix A. Pages 139-162 in A.M. Woodbury, ed. Ecological Studies of the Flora and Fauna of Flaming Gorge Reservoir Basin, Utah and Wyoming. University of Utah Press, Salt Lake City.
 

 Lowe, C.H., Jr. 1960. Fishes. Pages 171-172 in J.L Cross, E.H. Shaw and K. Scheifele. eds. Arizona, its People and Resources, University of Arizona Press, Tucson.
 

 McDonald, D.B. and P.A. Dotson. 1960. Pre-impoundment investigations of the Green River and Colorado River developments. Utah Department of Game and Fish, Job No. 5, Department Bulletin No 60-3. 70 pages.
 

 Smith, G.R. 1960. Annotated list of fish of the Flaming Gorge Reservoir basin, 1959. Pages 163-168 in A.M. Woodbury, ed. Ecological Studies of the Flora and Fauna of Flaming Gorge Reservoir Basin, Utah and Wyoming. University of Utah Press, Salt Lake City.
 

 Uyeno, T. 1961. Osteology and phylogeny of the American cyprinid fishes allied to the genus Gila. Doctoral dissertation, University of Michigan, Ann Arbor. 102 pages.
 

 Anonymous. 1962. Mission accomplished. Good fishing ahead. Wyoming Wildlife 26(11):12-17.
 

 Azevedo, R. 1962. Fishery management report: Dinosaur National Monument - Green River fish collections, 9 November 1962. 8 pages.
 

 Azevedo, R. 1962. Fishery management report: Green River Survey, 18 May 1962. 4 pages.
 

 Azevedo, R. 1962. Log of numbers of fish collected before and after eradication, Green River 7 December 1962. 4 pages.
 

 Hagan, H.K. 1962. Preliminary survey of the vertebrate and invertebrate faunas of Dinosaur National Monument. Colorado State University, Fort Collins. 17 pages.
 

 LaRivers, I. 1962. Fish and fisheries of Nevada. Pages 387-394 in Nevada State Fish and Game Commission. State Printing Office, Carson City.
 

 Andriano, D. 1963. Resume of the detoxification phase of the Green River rehabilitation project based on information presented at the 1963 session of the technical committee of the Colorado River management committee. 2 pages.
 

 Binns, N.A., F. Eisermann, F.W. Jackson, A.F. Regenthal and R. Stone. 1963. Planning, operation and analysis of the Green River fish control project. Utah State Department of Fish and Game and Wyoming Game and Fish Department. 83 pages.
 

 Franklin, D.R. 1963. Fishery management report, 11-13 Oct 1963 Green River, Colorado and Utah. U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 4 pages.
 

 Hagan, H.K. and J.E. Banks. 1963. An ecological and limnological study of the Green River in Dinosaur National Monument. National Park Service and Colorado State University, Fort Collins. 31 pages.
 

 Miller, R.R. 1963. Is our native underwater life worth saving? National Parks Conservation Magazine 37(188):4-9.
 

 Sigler, W.F. and R.R. Miller. 1963. Fishes of Utah. Utah Division of Wildlife, Salt Lake City. 203 pages.
 

 Stroud, R.H. 1963. Green River humpbacks. Sport Fishing Institute Bulletin 141:7.
 

 Woodbury, A.M. 1963. Studies of biota in Dinosaur National Monument, Utah and Colorado. University of Utah, Division of Biological Science Miscellaneous Papers 1:1-77.
 

 Banks, J.L. 1964. Fish species distribution in Dinosaur National Monument during 1961-1962. Master's thesis, Colorado State University, Fort Collins. 96 pages.
 

 Frost, H.H., J.R. Murphy, J.H. Wing and S.S. Taba. 1964. Limnological studies of the Colorado River in the vicinity of Moab, Utah. Second Progress report. Brigham Young University Department of Zoology and Chemistry, Provo.
 

 Miller, R.R. 1964. Extinct, rare, and endangered American freshwater fishes. Proceedings of the 26th International Congress of Zoology 8:4-16.
 

 Miller, R.R. 1964. Fishes of Dinosaur. Naturalist 15(2):24-29.
 

 Miller, R.R. and C.H. Lowe. 1964. Fishes of Arizona. Part 2. Pages 133-151 In C.H. Lowe, ed. The Vertebrates of Arizona. The University of Arizona Press, Tucson.
 

 Stone, J.L. 1964. Limnological study of Glen Canyon tailwater area of Colorado River. Arizona Game and Fish Department, Phoenix. 10 pages.
 

 Stone, R. and K. Miller. 1965. Lake Powell post-impoundment investigations. Progress report 3 (Glen Canyon Unit, Colorado River Storage Project). Utah Division of Wildlife, Salt Lake City. 56 pages.
 

 Stone, R., L. Fields and K. Miller. 1965. Lake Powell post-impoundment investigations. Progress report 2 (Glen Canyon Unit, Colorado River Storage Project). Utah Division of Wildlife, Salt Lake City. 39 pages.
 

 Taba, S.S., J.R. Murphy and H.H. Frost. 1965. Notes on the fishes of the Colorado River near Moab, Utah. Proceedings of the Utah Academy of Science, Arts and Letters 42(11):280-283.
 

 Uyeno, T. and R.R. Miller. 1965. Middle Pliocene cyprinid fishes from the Bidahochi Formation, Arizona. Copeia 1965:28-41.
 

 Binns, N.A. 1966. Effects of rotenone treatment on the fauna of the Green River, Wyoming. Oregon State University. 153 pages.
 

 Stone, J.L. 1966. Tailwater fisheries investigations, creel census and limnological study of the Colorado River below Glen Canyon Dam, 1 July 1965-30 June 1966. Arizona Game and Fish Department, Phoenix. 26 pages.
 

 Binns, N.A. 1967. Effects of rotenone treatment on the fauna of the Green River, Wyoming. Wyoming Game and Fish Commission, Fishery Research Bulletin (1):1–114.
 

 Kinnear, B.S. and R.E. Vincent. 1967. Fishes and fish habitats in Black Canyon of the Gunnison National Monument.  Colorado State University, Fort Collins. 45 pages.
 

 Stone, J.L. and A.B. Queenan. 1967. Tailwater fisheries investigations, creel census and limnological study of the Colorado River below Glen Canyon Dam, 1 July 1966-30 June 1967. Arizona Game and Fish Department, Phoenix. 33 pages.
 

 U.S. Fish and Wildlife Service. 1967. Notice of listing of endangered species:humpback chub. Federal Register 32(48).
 

 U.S. Fish and Wildlife Service. 1967. No title. Federal Register 32:4001.
 

 Vanicek, C.D. 1967. Ecological studies of native Green River fishes below Flaming Gorge Dam, 1964-1966. Doctoral dissertation, Utah State University, Logan. 125 pages.
 

 Behnke, R.J.  1968. Indigenous trouts and the fishes of Colorado. Colorado Fisheries Research Review 5:41.
 

 Colorado Cooperative Fishery Unit. 1968. Annotated list of fishes native to the Colorado River Basin. Colorado State University, Colorado Cooperative Fishery Unit, Fort Collins. 12 pages.
 

 Deacon, J.E. 1968. Endangered nongame fishes of the west: causes, prospects, and importance. Proceedings of the Annual Conference of the Western Association of Fish and Wildlife Commissioners 48:534-549.
 

 Deacon, J.E. 1968. Unpublished field notes pertaining to humpback chub capture. 28 pages.
 

 Holden, P.B. 1968. Systematic studies of the genus Gila (Cyprinidae) of the Colorado River basin. Master's thesis, Utah State University, Logan. 68 pages.
 

 Minckley, W.L. and J.E. Deacon. 1968. Southwest fishes and the enigma of endangered species. Science 159:1424-1432.
 

 Rinne, J.N. 1969. Cyprinid fishes of the genus Gila from the lower Colorado River basin. Master's thesis, Arizona State University, Tempe. 77 pages.
 

 Stone, J.L. and N.L. Rothbun. 1969. Tailwater fisheries investigations, creel census and limnological study of the Colorado River below Glen Canyon Dam 1 July 1967-30 June 1968. Arizona Game and Fish Department, Phoenix. 35 pages.
 

 Vanicek, C.D. and R.H. Kramer. 1969. Life history of the Colorado squawfish, Ptychocheilus lucius, and the Gila chub Gila robusta, in the Green River in Dinosaur National Monument, 1964-1966. Transactions of the American Fisheries Society 98(2):193-208.
 

 Holden, P.B. and C.B. Stalnaker. 1970. Systematic studies of the cyprinid genus, Gila, in the upper Colorado River basin. Copeia 3:409-420.
 

 Rathbun, N.L. 1970. Tailwater fisheries investigations, creel census and limnological studies of the Colorado River below Glen Canyon Dam, 1 July 1969 - 30 June 1970. Arizona Game and Fish Department, Phoenix. 46 pages.
 

 Rinne, J.N. and W.L. Minckley. 1970. Native fishes, part III: chubs. Wildlife Views 17(5)12-19.
 

 Vanicek, C.D., R.H. Kramer and D.R. Franklin. 1970. Distribution of Green River fishes in Utah and Colorado following closure of Flaming Gorge Dam. Southwestern Naturalist 14(3):297-315.
 

 Dufek, R., R.W. Wiley, B. Nielson and J.D. Varley. 1971. Green River and Flaming Gorge Reservoir post-impoundment investigations. Progress report no. 8. Joint report of the Utah State Division of Wildlife Resources, Salt Lake City, and Wyoming Game and Fish Commission, Cheyenne. 31 pages.
 

 Minckley, W.L. 1971. Keys to native and introduced fishes of Arizona. Journal of the Arizona Academy of Science 6:183-188.
 

 Stone, J.L. and J.R. Bruce. 1971. Tailwater fisheries investigations, creel census and biological study of the Colorado River below Glen Canyon Dam 1 July 1970-30 June 1971. Arizona Game and Fish Department, Phoenix. 31 pages.
 

 Varley, J.D., A.F. Regenthal, B. Nielson, R.W. Wiley, F.W. Jackson and D. Dufek. 1971. Green River and Flaming Gorge Reservoir post-impoundment investigations. Progress report no 7. Colorado River Storage Project, Flaming Gorge Unit. 49 pages.
 

 Miller, R.R. 1972. Threatened freshwater fishes of the United States. Transactions of the American Fisheries Society 101:239-252.
 

 Miller, R.R. and G.R. Smith. 1972. Fishes collected on the Grand Canyon survey, Lee's Ferry to Diamond Creek, August, 1968. 2 pages.
 

 Behnke, R.J. 1973. Humpback sucker, Xyrauchen texanus. U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Behnke, R.J. 1973. Status of Gila cypha. Colorado State University, Fort Collins. 5 pages.
 

 Holden, P.B. 1973. Distribution, abundance and life history of the fishes of the upper Colorado River basin. Doctoral dissertation, Utah State University, Logan. 59 pages.
 

 Minckley, W.L. 1973. Fishes of Arizona. Arizona Game and Fish Department, Phoenix. 293 pages.
 

 Stalnaker, C.B. and P.B. Holden. 1973. Changes in native fish distribution in the Green River system, Utah-Colorado. Proceedings of the Utah Academy of Science, Arts and Letters 50(1):25-32.
 

 Holden, P.B., W. White, G. Somerville, D. Duff, R. Gervais and S. Gloss. 1974. Threatened fishes of Utah. Proceedings of the Utah Academy of Science, Arts and Letters 51(2):46-64.
 

 Kidd, G.T. 1974. Preliminary report on endangered and threatened endemic warmwater species of fish in western Colorado rivers. Federal aid project F-30-R-11. Colorado Division of Wildlife, Denver. 16 pages.
 

 Clemmer, G.H. 1975. Unpublished field notes pertaining to humpback chub capture. 31 pages.
 

 Holden, P.B. and C.B. Stalnaker. 1975. Distribution of fishes in the Dolores and Yampa River systems of the upper Colorado basin. Southwestern Naturalist 19(4):403-412.
 

 Holden, P.B. and C.B. Stalnaker. 1975. Distribution and abundance of mainstream fishes of the Middle and upper Colorado River basins, 1967-1973. Transactions of the American Fisheries Society 104:217-231.
 

 McAda, C.W. and K. Seethaler. 1975. Investigations of the movements and ecological requirements of the Colorado squawfish and humpback sucker in the Yampa and Upper Green Rivers June 1, 1974 -October 31, 1975. Progress report. Utah State University, Utah Cooperative Fishery Research Unit, Logan. 38 pages.
 

 Miller, R.R. 1975. Report on fishes of the Colorado River drainage between Lee's Ferry and Surprise Canyon, Arizona. Unpublished Colorado River Research Report, Grand Canyon National Park, Arizona. 4 pages
 

 Miller, R.R. 1975. University of Michigan collection records of humpback chubs and unpublished field notes pertaining to humpback chub capture. 37 pages.
 

 Minckley, C.O. 1975. Unpublished field notes pertaining to humpback chub capture. 2 pages.
 

 Wick, E.J. 1975. Gila cypha, the humpback chub: can it be saved or is it doomed to extinction? A report on the possible find of a remnant population of Gila cypha, a rare and endangered species of the order Cyriniformes, family Cyprinidae. Colorado State University, Fort Collins. 12 pages.
 

 Clemmer, G.H. 1976. Unpublished field notes pertaining to humpback chub capture. 18 pages.
 

 Johnson, J.E. 1976. Status of endangered and threatened fish species in Colorado. U.S. Bureau of Land Management, Technical Note 280. 29 pages.
 

 Minckley, C.O. and D.W. Blinn. 1976. Summer distribution and reproductive status of fish of the Colorado River and its tributaries in Grand Canyon National park and vicinity, 1975. Final report National Park Service. Northern Arizona University, Department of Biology, Flagstaff, Colorado River Research Series Contribution (Grand Canyon National Park, Grand Canyon, Arizona). 42:1-17.
 

 Minckley, W.L. 1976. Appendix 8, Fishes. In E.W. Haury, ed. The Hohokam Desert Farmers and Craftsmen: Excavations at Snaketown 1964-1965. University of Arizona Press, Tucson.
 

 Olsen, S.L. 1976. Appendix 7, Microvertebrates. In E.W. Haury, ed. The Hohokam Desert Farmers and Craftsmen: Excavations at Snaketown 1964-1965. University of Arizona Press, Tucson.
 

 Sublette, J.E. 1976. Survey of the fishes of the San Juan River basin, with particular reference to the endangered species. U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 9 pages.
 

 Suttkus, R.D. 1976. Survey of fishes, mammals and herpetofauna of the Colorado River and adjacent riparian areas of the Grand Canyon National Park. Progress report. Colorado River Research Series Contribution (Grand Canyon National Park, Grand Canyon, Arizona). 9 pages.
 

 Suttkus, R.D., G.H. Clemmer, C. Jones and C. Shoop. 1976. Survey of fishes, mammals and herpetofauna of the Colorado River in Grand Canyon. Colorado River Research Program final report. Technical report no. 5. Grand Canyon National Park. 48 pages.
 

 Sutton, R.J. 1976. Humpback chub. Colorado Outdoors 25(4):20-21.
 

 U.S. Fish and Wildlife Service. 1976. Report on the Savery-Pot Hook Project.  U.S. Fish and Wildlife Service, Denver, Colorado. 39 pages.
 

 Wydoski, R.S., K. Gilbert, K. Seethaler and C.W. McAda.  1976. Annotated bibliography for aquatic resource management of the upper Colorado River ecosystem. Utah Cooperative Fishery Research Unit. 206 pages.
 

 Carothers, S.W. 1977. River resource monitoring project, Grand Canyon National Park. National Park Service and Museum of Northern Arizona. 51 pages.
 

 Colorado River Wildlife Council. 1977. Endemic fishes of the Colorado River system: a status report. Endemic Species Commission, Colorado River Wildlife Council. 16 pages.
 

 Holden, P.B. 1977. Habitat requirements of juvenile Colorado River squawfish. U.S. Fish and Wildlife Service, Office of Biological Survey, Fort Collins, Colorado.
 

 Holden, P.B. 1977. Study of the habitat use and movement of the rare fishes in the Green River from Jensen to Green River, Utah, August and September, 1977. Final report.  BIO/WEST, Inc., Logan, Utah. 58 pages.
 

 Johnson, J.E. 1977. Realistic management of endangered species. Progress to date. Proceedings of the Annual Conference of the Western Association of Game and Fish Commissions 57:298-301.
 

 Joseph, T.W., J.A. Sinning, R.J. Behnke and P.B. Holden. 1977. An evaluation of the status, life history and habitat requirements of endangered and threatened fishes of the upper Colorado River system. report 24, Part 2. U.S. Fish and Wildlife Service, Office of Biological Services, Fort Collins, Colorado. 184 pages.
 

 Kidd, G.T. 1977. An investigation of endangered and threatened fish species in the upper Colorado River as related to U.S. Bureau of Reclamation projects. Final report. Northwest Fisheries Research, Clifton, Colorado. 38 pages.
 

 Langlois, D. 1977. Colorado's endangered fish. Colorado Outdoors 26(3):18-21.
 

 McAda, C.W., C. Philips, C.R.J. Berry and R.S. Wydoski. 1977. Survey of threatened and endangered fish in southeastern Utah streams. Utah Cooperative Fishery Research Unit, Logan.
 

 Minckley, C.O. 1977. Monitoring the population trends of the genus Gila in selected localities. Final Report to National Park Service, Grand Canyon National Park, Grand Canyon, Arizona, by Museum of Northern Arizona, Contract No. CX821 070012. In S.W. Carothers, ed. River Resource Monitoring Project, Grand Canyon National Park.
 

 Minckley, C.O. 1977. Unpublished field notes pertaining to humpback chub capture. 4 pages.
 

 Minckley, C.O. 1977. Preliminary survey of the fish of the Little Colorado River from Blue Spring to the vicinity of Big Canyon, Coconino County, Arizona. report to the Office of Endangered Species, Region 2. U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 10 pages.
 

 Suttkus, R.D. and G.H. Clemmer. 1977. Humpback chub, Gila cypha, in the Grand Canyon area of the Grand Canyon area of the Colorado River. Tulane University Museum of Natural History Occasional Papers, Belle Chasse, Louisianna 1:1-30.
 

 U.S. Fish and Wildlife Service. 1977. Indexed, annotated bibliography of the endangered and threatened fishes of the upper Colorado River system. U.S. Fish and Wildlife Service Biological Services Program, Denver, Colorado. 169 pages.
 

 Wydoski, R.S., D.A. Smith, et al. 1977. Annual Conference Western Association of Game and Fish Commissioners and Western Division 1977. American Fisheries Society, Tucson, Arizona.
 

 Allan, R.C. and D.L. Roden. 1978. Fish of Lake Mead and Lake Mohave. Base fisheries data Boulder Canyon to Davis Dam. Bilological bulletin no. 7. Nevada Department of Wildlife, Reno. 105 pages.
 

 Armantrout, N.B. 1978. Endangered fish of the Colorado. Our Public Lands 28(2):8-10.
 

 Courtois, L.A., T.J. Mills and V.M. Boccone. 1978. Humpback sucker. Pages 42-43 in Endangered, Threatened, and Rare Fish: Fishes. California Department Fish and Game, Sacramento.
 

 Deacon, J.E. 1978. Endangered and threatened fishes of the West. Great Basin Naturalist Memoirs 3:41-64.
 

 Desert Fishes Council. 1978. Proceedings of the Desert Fishes Council Tenth Annual Symposium. Desert Fishes Council, Bishop, California. 73 pages + appendices.
 

 Engel, J.M.  1978. Management of endangered cool water fishes. Pages 159-1690 in R.L. Kendall, ed. American Fisheries Society Special Publication, Number 11. Selected Cool Water Fishes of North America. Proceedings of a Symposium, St. Paul, Minnesota.
 

 Euler, R.C. 1978. Archeological and paleobiological studies at Stanton's cave, Grand Canyon National Park, Arizona. A report of progress. Pages 142-162 in National Geographic Society Research Report.
 

 Holden, P.B. 1978. Study of the habitat use and movement of the rare fishes in the Green River, Utah. BIO/WEST, Inc., Logan, Utah.
 

 Holden, P.B. and L.W. Crist. 1978. Documentation of modification of endemic fish species and macroinvertebrates in the Green River below Flaming Gorge Dam. BIO/WEST, Inc., Logan, Utah. 11 pages.
 

 Joseph, T.W. 1978. Capture locations of rare fish in the upper Colorado River system. U.S. Fish and Wildlife Service, Office of Biological Services. 44 pages.
 

 Langlois, D., J. Torres, C. Prewitt, E. Wick, C. Carlson and D. Snyder. 1978. Colorado squawfish and humpback chub population and habitat monitoring program, Colorado Division Wildlife, Denver. Performance report. Endangered Wildlife Investigations. 57 pages.
 

 Minckley, C.O. 1978. Recovery of the humpback chub (Gila cypha) and observations on that species. Museum of Northern Arizona, Flagstaff. 3 pages.
 

 Minckley, C.O. 1978. Unpublished field notes pertaining to humpback chub capture. 13 pages.
 

 Prewitt, C.G., E.J. Wick and D.E. Snyder. 1978. Population and habitat monitoring program for the endangered humpback chub (Gila cypha) and Colorado squawfish (Ptychocheilus lucius). Progress report for 1977. Colorado State University (submitted to Colorado Division of Wildlife), Fort Collins. 53 pages.
 

 Prewitt, C.G., E.J. Wick, D.E. Snyder and D. Langlois. 1978. Colorado squawfish and humpback chub population and habitat monitoring. Progress report of Federal Aid to Endangered Wildlife. Colorado Division of Wildlife Resources, Denver. 59 pages.
 

 Torres, J. and D. Langlois. 1978. Razorback (humpback) sucker, Xyrauchen texanus (Abbott). Pages 24-25 in Essential Habitat for Threatened or Endangered Wildlife in Colorado: Part I. Colorado Division of Wildlife, Fort Collins.
 

 Torres, J., S. Bissell, G. Craig, W. Graul and D. Langlois. 1978. Wildlife in danger: the status of Colorado's threatened or endangered birds, fish and mammals. Colorado Division of Wildlife, Denver.
 

 Wiltzius, W.J. 1978. Some factors historically affecting the distribution and abundance of fishes in the Gunnison River. Final report for fishery investigations of the lower Gunnison River drainage. Colorado Division of Wildlife, Fort Collins. 215 pages.
 

 Abbey, D. and C. Olinger. 1979. Survey of energy projects and resources in the upper Colorado and upper Missouri River basins. Informal report LA-8126-MS. Los Alamos Scientific Laboratory, Los Alamos, New Mexico. 23 pages.
 

 Anonymous. 1979. Humpback chub recognized. Canyon Echo 15(5).
 

 Anonymous. 1979. Peregrine falcon, humpback chub recovery plans approved. Endangered Species Technical Bulletin 4(9):5.
 

 Berry, C.R., Jr. 1979. Humpbacks and bonytails: Utah's rare fish. Utah Cooperative Fishery Research Unit, Logan.
 

 Berry, C.R., Jr. 1979. Humpbacks and bonytails: Utah's rare fish. Edge, Natural Resources and People 2(1):22-25.
 

 Carlson, C.A., C.G. Prewitt, D.E. Snyder, E.J. Wick, E.L. Ames and W.D. Fronk. 1979. Fishes and macroinvertebrates of the White and Yampa Rivers, Colorado. Final report, February 1979. Colorado State University Department of Fisheries and Wildlife Biology, Department of Zoology and Entomology, Fort Collins and U.S. Bureau of Land Management Project 31-1474-1744. 276 pages.
 

 Clemmer, G.H. 1979. Unpublished field notes pertaining to humpback chub captures. 8 pages.
 

 Cowardin, L.M., V. Carter, F.C. Golet and E.T. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. U.S. Fish and Wildlife Service, Washington, D.C. 131 pages.
 

 Day, D. 1979. Endangered animals in Utah and adjacent areas. Great Basin Naturalist Memoirs 3:35-40.
 

 Deacon, J.E., G. Kobetich, J.D. Williams, S. Contreras and members of the endangered species committee of the American Fisheries Society. 1979. Fishes of North America--endangered, threatened, or of special concern 1979. Fisheries (Bethesda) 4(2):29-44.
 

 Desert Fishes Council. 1979. Proceedings of the Desert Fishes Council Volume XI Annual Symposium. Desert Fishes Council, Bishop, California. 152 pages.
 

 Holden, P.B. 1979. Ecology of riverine fishes in regulated stream systems with emphasis on the Colorado River. Pages 57-74 in The Ecology of Regulated Streams. W.A. Stanford, Plenum Publishing Company.
 

 Langlois, D., T. Lytle, C. Haynes, R. Knox, J. Torres, E. Wick and D. Snyder. 1979. Colorado squawfish and humpback chub population and habitat monitoring. Project Number SE-3-2. Endangered Wildlife investigation, Work Plan No:1, Job Number 1. Colorado Division of Wildlife Nongame Progress Management, Denver. 57 pages.
 

 Lanigan, S.H. and C.R. Berry, Jr. 1979. Distribution and abundance of endemic fishes in the White River in Utah. Utah Cooperative Fish and Wildlife Research Unit, Logan. 93 pages.
 

 Lanigan, S.H. and C.R. Berry, Jr. 1979. Abundance and distribution of endemic fish in the White River, Utah.  American Fisheries Society Bonneville Chapter 1979 Annual Meeting.
 

 Minckley, C.O. 1979. Additional studies on the Little Colorado River population of the humpback chub. U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 5 pages.
 

 Minckley, C.O. 1979. Report on the removal of humpback chubs from the Little Colorado River during October, 1979. Report to the Office of Endangered Species, Region 2. U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 5 pages.
 

 Minckley, C.O. 1979. Unpublished field notes pertaining to humpback chub capture. 5 pages.
 

 National Park Service. 1979. Green and Yampa wild and scenic rivers. National Park Service, Salt Lake City, Utah.
 

 National Park Service. 1979. Colorado River Management Plan, Grand Canyon National Park, Arizona. National Park Service.
 

 Nicola, S.J. 1979. Fisheries problems associated with the development of the lower Colorado River. Inland Fisheries Endangered Species Program Special Publication 74(4):1-18.
 

 Seethaler, K.H., C.W. McAda and R. Wydoski. 1979. Endangered and threatened fish in the Yampa and Green Rivers of Dinosaur National Monument. Pages 605-612 in R.M. Linn, ed. Proceedings of the First Annual Conference on Scientific Research in the National Parks. U.S. National Park Service Transactions and Proceedings, Series 5.
 

 Smith, G.R., R.R. Miller and W.D. Sable. 1979. Species relationships among fishes of the genus Gila in the upper Colorado River drainage. Pages 613-623 in Proceedings of the First Annual Conference on Scientific Research in the National Parks. U.S. National Park Service Transactions and Proceedings Series 5.
 

 Snyder, D.E. 1979. Myomere and vertebra counts of the North American cyprinids and catostomids. Pages 53-69 in R.D. Hoyt, ed. Proceedings of the third symposium on larval fishes (February 20-21, 1979). Western Kentucky University, Department of Biology, Bowling Green, Kentucky.
 

 St. Amant, J., R.C. Allan, R. David, R. Gervais, B. Jensen and J. Johnson. 1979. Humpback chub recovery plan. Colorado River Fishes Recovery Team, Arizona Game and Fish Department, California Game and Fish Department, Colorado Division of Wildlife and Nevada Department of Fish and Game. 74 pages.
 

 Suttkus, R.D. and G.H. Clemmer. 1979. Fishes of the Colorado River in Grand Canyon National Park. Pages 599-604 in Proceedings of the First Annual Conference on Scientific Research in the National Parks U.S. National Park Service Transactions and Proceedings Series 5.
 

 U.S. Fish and Wildlife Service. 1979. Aquatic study--Colorado River from Lee's Ferry to the southern International Boundary, and selected tributaries, Arizona, California, Nevada. Special report on distribution and abundance of fishes of the lower Colorado River. Final report, U.S. Water and  U.S. Fish and Wildlife Service, Phoenix. 157 pages.
 

 Wick, E.J. and D. Snyder. 1979. Colorado Division Of Wildlife's Colorado squawfish and humpback chub trend zone monitoring program. Proceedings of the Desert Fishes Council 11.
 

 Wick, E.J., D.E. Snyder and C.M. Haynes. 1979. Colorado Division of Wildlife's Colorado squawfish and humpback chub trend zone monitoring program. Proceedings of the Desert Fishes Council 11:100.
 

 Wick, E.J., D.E. Snyder, D. Langlois and T. Lytle. 1979. Colorado squawfish and humpback chub population and habitat monitoring. Progress report SE-3-2. Colorado Division of Wildlife, Denver.
 

 Archer, D.L., H.M. Tyus and R.A. Valdez. 1980. Field methodologies of the Fish and Wildlife Service, Colorado River Fisheries Project. Transactions of the American Fisheries Society of the Bonneville Chapter 1980:13-36.
 

 Behnke, R.J. 1980. Impacts of habitat alterations on the endangered and threatened fishes of the upper Colorado River basin. Pages 204-216 in W.O.J. Spofford, A.L. Parker and A.V. Kneese, eds. Energy Development and the Water, Fish, and Wildlife in the Southwest: Problems of the Upper Colorado River Basin. Resources for the Future, Washington, D.C.
 

 Behnke, R.J. and D.E. Benson. 1980. Endangered and threatened fishes of the upper Colorado River basin. Colorado State University Cooperative Extension Service Bulletin 503A, Fort Collins. 34 pages.
 

 Clemmer, G.H. 1980. Unpublished field notes pertaining to humpback chub captures. 7 pages.
 

 Haynes, C.M. 1980. Endangered humpback chub range extension documented. Endangered Species Technical Bulletin 5(10):3.
 

 Haynes, C.M. 1980. Saving Colorado's big-river fish. Colorado Outdoors 29(1):26-29.
 

 Heggen, A.W. 1980. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Performance report - SE-2(CO-OP), October 1, 1979 - June 30, 1980. Utah Division of Wildlife Resources, Salt Lake City. 1 page.
 

 Holden, P.B. and W.L. Minckley. 1980. Gila cypha, humpback chub. Page 165 in D.S. Lee, C.R. Gilbert, C.H. Hocutt, R.E. Jenkins, D.E. McAllister, and J.R. Stauffer, Jr., eds. Atlas of North American Freshwater Fishes. North Carolina State Museum, North Carolina Biological Survey Publication Number 1980-12. Raleigh, NC.
 

 Lake Powell Chronicle. 1980. Endangered species captured in Lake Powell 7/16/80 Page, Arizona. Lake Powell Chronicle.
 

 Lee, D.S., C.R. Gilbert, C.H. Hocutt, R.E. Jenkins, D.E. McAllister and J.R. Stauffer, Jr. 1980. Atlas of North American Freshwater Fishes Page 165 in Publication 1980-12 of the North Carolina Biological Survey. North Carolina State Museum of Natural History.
 

 Miller, W.H., J. J. Valentine, D. L. Archer, H. M. Tyus, R. A. Valdez and L. R. Kaeding. 1980. Colorado River Fisheries Investigations, 1979 progress report. Draft. U.S. Fish and Wildlife Service and U.S. Bureau of Reclamation. 71 pages.
 

 Minckley, C.O. 1980. Recovery of the humpback chub Gila cypha and observations on that species 1977-1978. Proceedings of the Desert Fishes Council 12:130.
 

 Minckley, C.O. 1980. River resource monitoring project, a species studies, Grand Canyon National Park: Part 2. Report National Park Service Contract CX-82-1070012. Museum of Northern Arizona, Flagstaff. 23 pages.
 

 Minckley, C.O. 1980. Unpublished field notes pertaining to humpback chub capture. 7 pages.
 

 Molles, M. 1980. Impacts of habitat alterations and introduced species on the native fishes of the upper Colorado River basin. Pages 163-181 in W.O.J. Spofford, A.L. Parker and A.V. Kneese, eds. Energy Development and the Water, Fish, and Wildlife in the Southwest: Problems of the Upper Colorado River Basin. Resources for the Future, Washington, D.C.
 

 Rinne, W.E. 1980. Lower Colorado River area coordinator report. Proceedings of the Desert Fishes Council 12:19-20.
 

 Robinson, K. 1980. Humpback chub. Grand Canyon National Park Guide 4(13): 2 pages.
 

 Tyus, H.M., C.W. McAda and B.D. Burdick. 1980. Colorado River Fishes Investigation. Annual report, 1979. Vernal, Utah. 46 pages.
 

 U.S. Fish and Wildlife Service. 1980. Aquatic study special report on distribution and abundance of fishes of the lower Colorado River. U.S. Bureau of Reclamation, Boulder City, Nevada.
 

 Valdez, R.A. 1980. Status of the distribution and taxonomy of Gila cypha in the upper Colorado River. Proceedings of the Desert Fishes Council 12:53-61.
 

 Valdez, R.A. and P. Mangan. 1980. Colorado River Fishery Project. Annual report, 1979. Grand Junction, Colorado. 23 pages.
 

 Wydoski, R.S. 1980. Potential impacts of alterations in streamflow and water quality on fish and macroinvertebrates in the upper Colorado River basin. Chapter 8 in W.O.J. Spofford, A.L. Parker and A.V. Kneese, eds. Energy Development and the Water, Fish, and Wildlife in the Southwest: Problems of the Upper Colorado River Basin. Resources for the Future, Washington, D.C.
 

 Wydoski, R.S. and W.T. Helm. 1980. Effects of alterations to low gradient reaches of Utah streams. FWS/OBS-80/14. -------------------------------------------------------------------------------- Page 7 --------------------------------------------------------------------------------  U.S. Fish and Wildlife Service. 160 pages.
 

 Wydoski, R.S., K. Gilbert, K. Seethaler, C.W. McAda and J.A. Wydoski. 1980. Annotated bibliography for aquatic resource management of the upper Colorado River ecosystem. U.S. Fish and Wildlife Service, Research Publication 135:1-186.
 

 Carothers, S.W. and C.O. Minckley. 1981. Survey of the fishes, aquatic invertebrates, and aquatic plants of the Colorado River and selected tributaries from Lee's Ferry to Separation Rapid. Final report. U.S. Bureau of Reclamation, Lower Colorado River Region, Boulder City, Nevada and Museum of Northern Arizona, Flagstaff. 401 pages.
 

 Carothers, S.W., J.W. Jordan, C.O. Minckley and H.D. Usher. 1981. Infestation of the copepod parasite Lernaea cyprinacea in native fishes of the Grand Canyon. Pages 452-460 in Proceedings of the Secod Conference on Scientific Research in the National Parks. National Park Service Transactions and Proceedings Series 8.
 

 Clemmer, G.H. 1981. Unpublished field notes pertaining to humpback chub captures. 15 pages.
 

 Hamman, R.L. 1981. Transporting endangered fish species in plastic bags. Progressive Fish Culturist 32(4):212-213.
 

 Hamman, R.L. 1981. Hybridization of three species of chub in a hatchery. Progressive Fish Culturist 43(3):140-141.
 

 Holden, P.B. and L.W. Crist. 1981. Documentation of changes in the macroinvertebrate and fish populations in the Green River due to inlet modification of Flaming Gorge Dam. Final report, Contract No. 0074051357, Water and Power Resources Service. BIO/WEST, Inc., Logan, Utah. 128 pages.
 

 Jordan, W.J. 1981. Food habits of Grand Canyon fishes. Final report. U.S. Bureau of Reclamation Contract No 7-07-30-X. In S.W. Carothers and C.O. Minckley, eds. A Survey of the Fishes, Aquatic Invertebrates, and Aquatic Plants of the Colorado River and Selected Tributaries from Lee's Ferry to Separation Rapid.
 

 Kaeding, L.R. and M.A. Zimmerman. 1981. Life history, habitat relationships, and population status of the humpback chub (Gila cypha) in the Little Colorado and Colorado Rivers Arizona. Interim report 1980. U.S. Fish and Wildlife Service, Colorado River Fishery Project. 34 pages.
 

 Miller, W.H., J. J. Valentine, D. L. Archer, H. M. Tyus, R. A. Valdez and L. R. Kaeding. 1981. Colorado River Fisheries Investigations. Preliminary draft report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Salt Lake City, Utah.
 

 Miller, W.H., R.A. Valdez and P.G. Mangan. 1981. Fisheries investigations of the upper Colorado River, Rifle to Debeque, Colorado. U.S. Fish and Wildlife Service, Salt Lake City, Utah. 4 pages.
 

 Minckley, C.O., S.W. Carothers, J.W. Jordan and H.D. Usher. 1981. Observations on the humpback chub, Gila cypha, within the Colorado and Little Colorado Rivers, Grand Canyon National Park, Arizona. Pages 176-183 in Proceedings of the Second Annual Conference on Scientific Research in the National Parks. U.S. National Park Service Transactions and Proceedings Series 8.
 

 Naiman, R.J. 1981. An ecosystem overview: desert fishes and their habitats. Pages 493-531 in R.J. Naiman and D.L. Stoltz, eds. Fishes in North American Deserts. John Wiley and Sons, New York, New York.
 

 Naiman, R.J. and D.L. Soltz. 1981. Fishes in North American Deserts. John Wiley and Sons, New York, New York. 552 pages.
 

 Pister, E.P. 1981. Conservation of desert fishes. Pages 411-445 in R.J. Naiman and D.L. Stoltz, eds. Fishes in North American Deserts. John Wiley and Sons, New York, New York.
 

 Schoenherr, A.A. 1981. Role of competition and the replacement of native fishes by introduced species. Pages 173-203 in R.J. Naiman and D.L. Soltz, eds. Fishes in North American Deserts, Wiley-Interscience, John Wiley and Sons, New York, New York.
 

 Snyder, D.E. 1981. Contributions to a guide to the cypriniform fish larvae of the upper Colorado River system. U.S. Bureau of Land Management, Biological Sciences Service. No. 3. 81 pages.
 

 U.S. Fish and Wildlife Service. 1981. Aquatic study--Colorado River from Lee's Ferry to the southern International Boundary, and selected tributaries, Arizona, California, Nevada. Special report on distribution and abundance of fishes of the lower Colorado River. Final report. Water and Power U.S. Bureau of Reclamation, Lower Colorado River Region, Boulder City, Nevada. U.S. Fish and Wildlife Service. 278 pages.
 

 Usher, H.D. 1981. Age and growth of Grand Canyon fishes. Final report. U.S. Bureau of Reclamation Contract No 7-07-30-X. In S.W. Carothers and C.O. Minckley, eds. A Survey of the Fishes, Aquatic Invertebrates, and Aquatic Plants of the Colorado River and Selected Tributaries from Lee's Ferry to Separation Rapid.
 

 Valdez, R.A., H.M. Tyus and L.R. Kaeding. 1981. Carlin tags on Colorado River endangered fishes. Proceedings of the American Fisheries Society Bonneville Chapter 1981:78-82.
 

 Valentine, J.J. 1981. Hatchery and laboratory phase of the Colorado River endangered fishes study. 7 pages.
 

 Wick, E.J., T.A. Lytle and C.M. Haynes. 1981. Colorado squawfish and humpback chub population and habitat monitoring. Progress report of Federal Aid to Endangered Wildlife. Colorado Division of Wildlife Resources, Denver. 32 pages.
 

 Arizona Game and Fish Commission. 1982. Threatened native wildlife in Arizona. Arizona Game and Fish Department, Phoenix. 12 pages.
 

 Behnke, R.J. 1982. Realities and illusions of endangered species preservation. Pages 93-94 in W.H. Miller, H.M. Tyus and C.A. Carlson, eds. Fishes of the Upper Colorado River System: Present and Future. American Fisheries Society, Bethesda, Maryland.
 

 Behnke, R.J., C.A. Carlson, D.L. Miller, D.E. Snyder, E.J. Wick and L.D. Zuckerman. 1982. Survey and analysis of existing information on fishes in northwest Colorado. Volume 6 in D.W. Crumpacker, ed. Wildlife conservation and energy development in northwest Colorado. Ecological Services Section, Colorado Division of Wildlife, Denver. (14 volume series prepared by Northwest Colorado Wildlife Consortium).
 

 Beleau, M.H. and J.A. Bartosz. 1982. Acute toxicity of selected chemicals: data base. Pages 243-254 in Colorado River Fishery Project, Part 3 Contracted Studies. Final report. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Bulkley, R.V., C.R. Berry, Jr., R. Pimentel and T. Black. 1982. Tolerance and preferences of Colorado River endangered fishes to selected habitat parameters. Pages 185-241 in Colorado River Fishery Project, Part 3 Contracted Studies. Final report. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Carlson, C.A. and E.M. Carlson. 1982. Review of selected literature on the upper Colorado River system and its fishes. Pages 1-8 in W.H. Miller, H.M. Tyus, and C.A. Carlson, eds. Fishes of the upper Colorado River System. Present and Future. Western Division, American Fisheries Society, Bethesda, Maryland. 131 pages.
 

 Clemmer, G.H. 1982. Unpublished field notes pertaining to humpback chub captures. 4 pages.
 

 Flagg, R. 1982. Disease survey of the Colorado River fishes. Pages 177-184 in Colorado River Fishery Project, Part 3 Contracted Studies. Final report. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Hamman, R.L. 1982. Spawning and culture of humpback chub. Progressive Fish Culturist 44:213-216.
 

 Hamman, R.L. 1982. Culture of endangered Colorado River fishes, Section I: induced spawning and culture of the humpback and bonytail chub hybrids. Pages 129-136 in Colorado River Fishery Project, Part 3 Contracted Studies. Final report. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Hamman, R.L. 1982. Culture of endangered Colorado River fishes, Section IV: spawning and culture of humpback chub. Pages 159-167 in Colorado River Fishery Project, Part 3 Contracted Studies. Final report. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Hamman, R.L. 1982. Induced spawning of hatchery-reared of humpback chub. Progressive Fish-Culturist 44:213-216.
 

 Harris, R.E., H.N. Sersland and F.P. Sharpe. 1982. Providing water for endangered fishes in the upper Colorado River system. Pages 90-92 in W.H. Miller, H.M. Tyus and C.A. Carlson, editors. Fishes of the Upper Colorado River System: Present and future. American Fisheries Society, Western Division, Bethesda, Maryland.
 

 Haynes, C., R. Muth, G. Skiba and L. Wykoff. 1982. Identification of habitat requirements and limiting factors for Colorado squawfish and humpback chubs. Project SE-3-4, Work Plan 1, Job 1. Colorado Division of Wildlife, Denver.
 

 Haynes, C.M. and R.T. Muth. 1982. Identification of habitat requirements and limiting factors for Colorado squawfish and humpback chubs (January 1, 1981 to June 30, 1982). Endangered Wildlife Investigations. 43 pages.
 

 Jacobi, G.Z. and M.D. Jacobi. 1982. Fish stomach content analysis. Final report, U.S. Bureau of Reclamation Contract 9-07-40-L-1016. Pages 285-324 in W.H. Miller, J.J. Valentine, D.L. Archer, H.M. Tyus, R.A. Valdez and L.R. Kaeding, eds. Colorado River Fishery Studies, Part 3, Contracted Studies.
 

 Jacobsen, R.D. 1982. New impacts by man in the upper Colorado River basin. Pages 71-85 in W.H. Miller, H.M. Tyus and C.A. Carlson, eds. Fishes of the Upper Colorado River System: Present and Future. American Fisheries Society, Bethesda, Maryland.
 

 Johnson, J.E. and J.N. Rinne. 1982. Endangered Species Act and southwest fishes.  Fisheries 7(3):2-7.
 

 Kaeding, L.R. and M.A. Zimmerman. 1982. Life history and ecology of the humpback chub in the Little Colorado and Colorado rivers of the Grand Canyon, Arizona. Final Report, U.S. Bureau of Reclamation contract 9-07-40-L-1016. Pages 281-320 in W.H. Miller, J.J. Valentine, D.L. Archer, H.M. Tyus, R.A. Valdez and L.R. Kaeding, eds. Colorado River Fishery Studies, Part 3, Contracted Studies.
 

 Kaeding, L.R. and M.A. Zimmerman. 1982. Life history and population ecology of the humpback chub in the Little Colorado and Colorado Rivers of the Grand Canyon, Arizona. Pages 281-320 in Colorado River Fishery Project, Part 2 Field Investigations. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Miller, K.D. 1982. Colorado River Fishes Recovery Team. Pages 95-97 in W.H. Miller, H.M. Tyus and C.A. Carlson, eds. Fishes of the Upper Colorado River System: Present and Future. American Fisheries Society, Bethesda, Maryland.
 

 Miller, W.H. 1982. Closing remarks. Pages 130-131 in W.H. Miller, H.M. Tyus and C.A. Carlson, eds. Fishes of the Upper Colorado River System: Present and Future. American Fisheries Society, Bethesda, Maryland.
 

 Miller, W.H., D.L. Archer, H.M. Tyus and R.M. McNatt. 1982. Yampa River fishes study. Final report FWS-NPS, cooperative agreement 14-16-0006-81-931(1A). U.S. Fish and Wildlife Service, Salt Lake City, Utah. 78 pages.
 

 Miller, W.H., H.M. Tyus and C.A. Carlson, eds. 1982. Fishes of the Upper Colorado River System: Present and Future. Proceedings of a Symposium Presented at the Annual Meeting of the American Fisheries Society in Albuquerque, New Mexico, September 18, 1981. American Fisheries Society, Western Division, Bethesda, Maryland. 131 pages.
 

 Miller, W.H., J.J. Valentine, D.C. Archer, H.M. Tyus, R.A. Valdez and L.R. Kaeding. 1982. Colorado River Fishery Project, Part 2 Field Investigations. Final report, U.S. Bureau of Reclamation Contract 9-07-40-L-10 16, and U.S. Bureau of Land Management Memorandum of Understanding CO-910-MU9-933. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah. 36 pages.
 

 Miller, W.H., J.J. Valentine, D.C. Archer, H.M. Tyus, R.A. Valdez and L.R. Kaeding. 1982. Colorado River Fishery Project, Part 3 Contracted Studies. Final report, U.S. Bureau of Reclamation Contract 9-07-40-L- 1016, and U.S. Bureau of Land Management Memorandum of Understanding CO-9l0-MU9-933. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah. 324 pages.
 

 Miller, W.H., J.J. Valentine, D.C. Archer, H.M. Tyus, R.A. Valdez and L.R. Kaeding.  1982. Colorado River Fishery Project, Part 1 Summary report. Final report, U.S. Bureau of Reclamation Contract 9-07-40-L-10 16, and U.S. Bureau of Land Management Memorandum of Understanding CO-910-MU-933. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah. 42 pages.
 

 Prewitt, C.G., K.A. Voos and T. Waddle. 1982. lFG study of physical-chemical habitat conditions on the Green and Colorado Rivers in Colorado and Utah. Pages 1-45 in Colorado River Fishery Project, Part 3 Contracted Studies. Final report. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Radant, R.D. 1982. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Performance report SE-2(CO-OP), July 1, 1981 - July 1, 1982. Utah Division of Wildlife Resources, Salt Lake City. 3 pages.
 

 Radant, R.D. 1982. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Performance report SE-2(CO-OP), July 1, 1981 - September 30, 1982. Utah Division of Wildlife Resources, Salt Lake City.
 

 Shields, R.H. 1982. Fishes of the upper Colorado River basin: political and resource consideration. Pages 9-11 in W.H. Miller, H.M. Tyus and C.A. Carlson, eds. Fishes of the Upper Colorado River System: Present and Future. American Fisheries Society, Bethesda, Maryland.
 

 Tyus, H.M., B.D. Burdick, R.A. Valdez, C.M. Haynes, T.A. Lytle and C.R. Berry. 1982. Fishes of the upper Colorado River basin: distribution, abundance, and status. Pages 12-70 in W.H. Miller, H.M. Tyus, and C.A. Carlson, eds. Fishes of the upper Colorado River system: present and future. Western Division, American Fisheries Society, Bethesda, Maryland. 131 pages.
 

 Tyus, H.M., C.W. McAda and B.D. Burdick. 1982. Green River fishes investigations. Final report, U.S. Bureau of Reclamation contract 9-07-40-L-1016. Pages 1-100 in W.H. Miller, J.J. Valentine, D.L. Archer, H.M. Tyus, R.A. Valdez and L.R. Kaeding, eds. Colorado River Fishery Studies, Part 2 Field Investigations, Contracted Studies.
 

 Tyus, H.M., C.W. McAda and B.D. Burdick. 1982. Green River field investigations: 1979-1981. Pages 1-99 in Colorado River Fishery Project, Part 2 Field Investigations. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 U.S. Army Corps of Engineers. 1982. Taylor Draw Reservoir project environmental impact statement. Final report. U.S. Army Corp of Engineers, Sacramento District. 150 pages.
 

 U.S. Bureau of Land Management. 1982. Environmental impact statement White River dam project. Final. U.S. Bureau of Land Management, Vernal District Office, Utah. 379 pages.
 

 Valdez, R.A. and B.A. Nilson. 1982. Radiotelemetry as a means of assessing movement and habitat selection of humpback chub. Proceedings of the American Fisheries Society Bonneville Chapter. Pages 29-40.
 

 Valdez, R.A. and G.H. Clemmer. 1982. Life history and prospects for recovery of the humpback chub and bonytail chub. Pages 109-119 in W.H. Miller, H.M. Tyus and C.A. Carlson, eds. Fishes of the Colorado River System: Present and future. Western Division, American Fisheries Society, Bethesda, Maryland.
 

 Valdez, R.A., P. Mangan, M. McInery and R.P. Smith. 1982. Tributary report: fishery investigations of the Gunnison and Dolores Rivers. Pages 321-362 in Colorado River Fishery Project, Part 2 Field Investigations. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Valdez, R.A., P. Mangan, R. Smith and B. Nilson. 1982. Upper Colorado River Investigation (Rifle, Colorardo to Lake Powell, Utah). Pages 101-279 in Colorado River Fishery Project, Part 2 Field Investigations. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Adams, V.D. and V.A. Lamarra, eds. 1983. Aquatic Resources Management of the Colorado River Ecosystem. Proceedings of the 1981 Symposium on the Aquatic Resources Management of the Colorado River Ecosystem, November 16-18, Las Vegas, Nevada. Ann Arbor Science Publishers, Ann Arbor, Michigan. 697 pages.
 

 Colorado River Wildlife Council. 1983. Minutes Colorado River Fish & Wildlife Council, Showboat Hotel, Las Vegas, Nevada, Albuquerque, New Mexico. Colorado River Wildlife Council.
 

 Haynes, C.M. 1983. Identification of habitat requirements and limiting factors for Colorado squawfish and humpback chubs. Job progress report. (Project # CO N-2-R (SE-3)/Wk.p1. 02/Job 01). Colorado Division of Wildlife, Fort Collins.
 

 Haynes, C.M. and R.T. Muth. 1983. Overview of early life history research of upper Colorado River fishes, Utah and Colorado. American Fisheries Society 7th Annual Larval Fish Conference, Colorado State University, Fort Collins.
 

 Haynes, C.M., G.T. Skiba, C.A. Carlson and R.T. Muth. 1983. Identification of habitat requirements and limiting factors for Colorado squawfish and humpback chubs. Colorado Division of Wildlife, Denver. 10 pages.
 

 Hickman, T.J. 1983. Effects of habitat alteration by energy resource developments in the upper Colorado River basin on endangered fishes. Aquatic resources management of the Colorado River ecosystem. Pages 537-550 in V.D. Adams and V.A. Lamarra, eds. Aquatic Resources Management of the Colorado River Ecosystem. Ann Arbor Science Publishing, Ann Arbor, Michigan.
 

 Holden, P.B. 1983. Status and preferred habitat of the rare fishes of the Green River, Utah. Proceedings of the Desert Fishes Council 9:314.
 

 Jensen, B.L. 1983. Culture techniques for selected Colorado River imperiled fishes. U.S. Fish and Wildlife Service, Dexter National Fish Hatchery, Dexter, New Mexico. 12 pages.
 

 Kaeding, L.R. and M.A. Zimmerman. 1983. Life history and ecology of the humpback chub in the Little Colorado and Colorado rivers of the Grand Canyon. Transactions of the American Fisheries Society 112:577-594.
 

 Miller, W.H., H.M. Tyus and L.R. Kaeding. 1983. Colorado River Fishes Monitoring Project, first annual report. U.S. Fish and Wildlife Service and U.S. Bureau of Reclamation, Salt Lake City, Utah. 23 pages.
 

 Miller, W.H., L.R. Kaeding and H.M. Tyus. 1983. Windy-gap fishes study. First annual report. U.S. Fish and Wildlife Service, Salt Lake City, Utah. 39 pages.
 

 Ono, R.D., J.D. Williams and H. Wagner. 1983. Vanishing fishes of North America. Stone Wall Press, Inc., Washington, D.C. Pages 92-94.
 

 Pimental, R. and R.V. Bulkley. 1983. Concentrations of total dissolved solids preferred or avoided by endangered Colorado River fishes (Ptychocheilus lucius, Gila cypha, G. elegans). Transactions of the American Fisheries Society 112(5):595-600.
 

 Radant, R.D. 1983. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Progress report SE-2(CO-OP), October 1, 1981 - December 31, 1983. Utah Division of Wildlife Resources, Salt Lake City. 4 pages.
 

 Rosenfeld, M.J. 1983. Use of chromosomes in fisheries biology population species discrimination in chubs (genus Gila). Proceedings of the Bonneville Chapter, American Fisheries Society 1983:9-17.
 

 Smith, G.R. 1983. Notes and keys for identification of upper Colorado River basin Gila. Draft. U.S. Fish and Wildlife Service. 5 pages.
 

 U.S. Bureau of Land Management. 1983. Environmental impact statement Clear Creek shale oil project Grand Junction, Colorado. Final. U.S. Bureau of Land Management.
 

 U.S. Fish and Wildlife Service. 1983. Brief on Colorado River endangered fishes, water development. U.S. Fish and Wildlife Service, Section 7 Consultation. 7+ pages.
 

 U.S. State and Private Forestry.  1983. Humpback chub: species range map. U.S. State and Private Forestry, Santa Fe, New Mexico.
 

 Valdez, R.A. and E.J. Wick. 1983. Natural versus manmade backwaters as native fish habitat. Pages 519-536 in V.D. Adams and V.A. Lamarra, eds. Aquatic Resources Management of the Colorado River Ecosystem. Ann Arbor Science Publishing, Ann Arbor, Michigan.
 

 Valentine, J.J. 1983. Colorado River endangered fish hatchery feasibility study. U.S. Fish and Wildlife Service, Salt Lake City, Utah. 47 pages.
 

 Archer, D.L., H.M. Tyus, L.R. Kaeding, C.W. McAda and B.D. Burdick. 1984. Colorado River Fishes Monitoring Project, second annual project.  U.S. Fish and Wildlife Service, Salt Lake City, Utah. 31 pages.
 

 Berry, C.R., Jr. 1984. Hematology of four rare Colorado River fishes. Copeia 3:790-793.
 

 Brooks, J.E. and C.O. Minckley. 1984. Observations on Gila cypha in the Little Colorado River, Grand Canyon. Proceedings of the American Fisheries Society Arizona-Nevada Chapter.
 

 Cinnamon, S.K. 1984. Gila cypha and the water quality of the Little Colorado River. 
 

 Colorado River Wildlife Council. 1984. Minutes Colorado River Fish & Wildlife Council, Imperial Palace Hotel, Las Vegas, Nevada. Colorado River Wildlife Council.
 

 Deacon, J.E. and J.E. Williams. 1984. Annotated list of the fishes of Nevada. Proceedings of the Biological Society of Washington 97(1):103-118.
 

 Haynes, C.M. and R.T. Muth. 1984. Identification of habitat requirements and limiting factors for Colorado squawfish and humpback chubs. Research report N-2-R-2, (SE-3). Colorado Division of Wildlife, Denver. 24 pages.
 

 Miller, R.R. and G.R. Smith. 1984. Fish remains from Stanton's Cave, Grand Canyon of the Colorado, Arizona, with notes on the taxonomy of Gila cypha. Pages 61-65 in R.C. Euler, ed. The Archeology, Geology, and Paleobiology of Stanton's Cave. Grand Canyon National Park. Arizona. Grand Canyon Natural History Association Monograph 6. Grand Canyon.
 

 Miller, W.H., L.R. Kaeding, H.M. Tyus and C.W. McAda. 1984. Windy-gap fishes study. Second annual report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Salt Lake City, Utah. 37 pages.
 

 Radant, R.D. 1984. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Progress report SE-2(CO-OP), October 1, 1982 - September 30, 1984. Utah Division of Wildlife Resource, Salt Lake City. 4 pages.
 

 Smith, G.R. 1984. Significance of hybridization in Chasmistes and Gila. Proceedings of the American Fisheries Society Bonneville Chapter. Pages 1-8.
 

 U.S. Fish and Wildlife Service. 1984. Upper Colorado River basin catalog of fish studies. U.S. Fish and Wildlife Service, Denver, Colorado. 70 pages.
 

 Valdez, R.A. 1984. Occurrence of threatened and endangered fishes of the Colorado River in the vicinity of the proposed Jacobson Hydrology No. 1 Project. Final report, version 2. Ecosystem Research Institute, Logan, Utah.
 

 Anonymous. 1985. Comments on Colorado River flows for endangered fishes under the Colorado River Compact. Upper Colorado River Basin Compact and the Treaty with Mexico. 9 pages.
 

 Archer, D.L., L.R. Kaeding, B.D. Burdick and C.W. McAda. 1985. Study of endangered Colorado River fishes of the upper Colorado River. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 134 pages.
 

 Berry, C.R., Jr. and R. Pimental. 1985. Swimming performances of three rare Colorado River fishes. Transactions of the American Fisheries Society 114(3):397-402.
 

 Brooks, J.E. 1985. Native fish investigations 1984-1985. Arizona Game and Fish Department, Nongame Branch. 7 pages.
 

 Brooks, J.E. and L. Riley. 1985. Microhabitat utilization by sub-adult Gila cypha in the Little Colorado River, Grand Canyon. Proceedings of the Annual Conference of the Western Association of Fish and Wildlife Agencies 65:233.
 

 Burdick, B.D. 1985. Reproductive ecology of the humpback chub and the roundtail chub in the upper Colorado River. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 1 page.
 

 Burdick, B.D. and L.R. Kaeding. 1985. Reproductive ecology of the humpback chub and the roundtail chub in the upper Colorado River.  Proceedings of the Western Association of Fish and Wildlife Agencies, and the Western Division of the American Fisheries Society. 163 pages.
 

 Carter, J.C., R.A. Valdez, R.J. Ryel and V.A. Lamarra. 1985. Fisheries habitat dynamics in the upper Colorado River. Journal of Freshwater Ecology 3(2):249-264.
 

 Desert Fishes Council. 1985. Proceedings of the Desert Fishes Council Volumes XIII-XV (A) Annual Symposia. Desert Fishes Council, Bishop, California. 163 pages
 

 Haynes, C.M. and R.T. Muth. 1985. Lordosis in Gila, Yampa River, Colorado. Proceedings of the Desert Fishes Council 17:83-84.
 

 Haynes, C.M., R.T. Muth and T.P. Nesler. 1985. Identification of habitat requirements and limiting factors for Colorado squawfish and humpback chub. Final report. Colorado Division of Wildlife, Fort Collins. 62 pages.
 

 Haynes, C.M., R.T. Muth and T.P. Nesler. 1985. Identification of habitat requirements and limiting factors for Colorado squawfish and humpback chubs. Final report. Federal Aid Project. SE-E-4. Colorado Division of Wildlife, Fort Collins. 100 pages.
 

 Jones, A.T. 1985. Cross section of Grand Canyon archeology: excavations at five sites along the Colorado River. Western Archeological and Conservation Center, Publications in Anthropology No. 28. 7 pages.
 

 Marsh, P.C. 1985. Effect of incubation temperature on survival of embryos of native Colorado River fishes. Southwestern Naturalist 30(1):129-140.
 

 McNatt, R.M. and D.L. Skates. 1985. Fishery investigation of the Yampa and Green rivers Dinosaur National Monument, Colorado and Utah, 1981. Proceedings of the Desert Fishes Council 13:91-100.
 

 Minckley, C.O. 1985. Summary of observations on the humpback chub (Gila cypha) in the Grand Canyon Region. Proceedings of the Desert Fishes Council 13:80-82.
 

 Minckley, W.L. 1985. Native fishes and natural aquatic habitats in U.S. Fish and Wildlife Service Region II west of the continental divide. Executive summary. Arizona State University, Deparment of Zoology, Tempe. 132 + pages.
 

 Muth, R.T., C.M. Haynes and C.A. Carlson. 1985. Taxonomic identification of larval and early-juvenile Gila native to the upper Colorado River basin. Proceedings of the Western Association of Fish and Wildlife Agencies, and the Western Division of the American Fisheries Society, Snowmass, Colorado. 7 pages.
 

 Muth, R.T., C.M. Haynes and C.A. Carlson. 1985. Culture of roundtail chub, Gila robusta robusta (Cyprinidae), through the larval period.  Southwestern Naturalist 30(1):152-154.
 

 Radant, R.D. 1985. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Progress report SE-2(CO-OP), October 1, 1984 - December 31, 1985. Utah Division of Wildlife Resources, Salt Lake City. 8 pages.
 

 U.S. Fish and Wildlife Service. 1985. Preliminary conceptual approach to recovery of endangered fish species in the upper Colorado River basin. Draft. U.S. Fish and Wildlife Service. 26 pages.
 

 Valdez, R.A. 1985. Cataract canyon fish study (fisheries biology and rafting). Final report ERI (C046-07). Ecosystem Research Institute, Logan, Utah. 14 pages.
 

 Valdez, R.A., J.G. Carter and R.J. Ryel. 1985. Drift of larval fishes in the upper Colorado River. Proceedings of the Western Association of Fish and Wildlife Agencies, and the Western Division of the American Fisheries Society. 60 pages.
 

 Wick, E.J. and J.A. Hawkins. 1985. Colorado squawfish and humpback chub population and habitat monitoring. Projects SE-5-5 and SE-5-6. Colorado Division of Wildlife NW Region Aquatic Section, Grand Junction. 4 pages.
 

 Wick, E.J., J.A. Hawkins and C.A. Carlson. 1985. Colorado squawfish and humpback chub population and habitat monitoring 1983-1984. Colorado State University Larval Fish Laboratory, Fort Collins, Colorado and Colorado Divisision of Wildlife. 48 pages.
 

 Wick, E.J., J.A. Hawkins and C.A. Carlson. 1985. Colorado squawfish and humpback chub population and habitat monitoring, 1983 and 1984. Endangered Wildlife Investigations. Final report SE 3-7. Colorado State University Larval Fish Laboratory and Colorado Department Natural Resources, Fort Collins. 57 pages.
 

 Wick, E.J., J.A. Hawkins and C.A. Carlson. 1985. Colorado squawfish and humpback chub habitat monitoring, 1981-1982. Colorado State University Larval Fish Laboratory and Colorado Division of Wildlife Report. 41 pages.
 

 Williams, J.E., et al. 1985. Endangered aquatic ecosystems on North American deserts with a list of vanishing fishes of the region. Journal of the Arizona-Nevada Academy of Science 20(1):1-62.
 

 Woodling, J. 1985. Colorado's little fish: a guide to the minnows and other lesser known fishes in the state of Colorado. Colorado Division of Wildlife, Denver. 77 pages.
 

 Wydoski, R.S. 1985. Biological review of endangered or imperiled fish in the upper Colorado River basin. Fishery Resources Program, Washington, D.C. 26 pages.
 

 Archer, D.L., L.R. Kaeding and H.M. Tyus. 1986. Colorado River Fishes Monitoring Project. Final report to the Bureau of Reclamation (Contract No. 2-07-40-L3083). U.S. Fish and Wildlife Service, Lakewood, Colorado. 64 pages.
 

 Haynes, C.M. and K. Hamilton. 1986. An annotated bibliography of the fishes of Colorado. Colorado Division of Wildlife Aquatic Research, Special Report 61:1-66.
 

 Jensen, B.L. 1986. Role of fish culture in endangered fishes recovery. Transactions of the American Fisheries Society of the Bonneville Chapter 1986:31-41.
 

 Kaeding, L.R., H.M. Tyus and R.D. Burdick. 1986. Colorado River endangered fishes investigations 1985. Annual report. U.S. Fish and Wildlife Service, Division of Endangered Species, Region 6 , Denver, Colorado.
 

 Martinez, P.J. 1986. White River Taylor Draw project pre- and post-impoundment fish community investigations. Colorado Division of Wildlife Aquatic Resources Section, Grand Junction. 121 pages.
 

 Minckley, W.L., D.A. Hendrickson and C.E. Bond. 1986. Geography of western North America freshwater fishes: description and relationships to intracontinental tectonism. Pages 519-613 in C.H. Hocutt and E.O. Wiley, eds. The Zoogeography of North American Freshwater Fishes. Wiley-Interscience, New York, New York.
 

 Muth, R.T. and C.A. Carlson. 1986. Description and identification of larval and early-juvenile Gila native to the upper Colorado River basin. 10th Annual Larval Fish Conference, Miami, Florida. 32 pages.
 

 Nesler, T.P. 1986. Aquatic nongame research 1985-86, squawfish-humpback studies. Project No. 02-01-035, study no. SE-3. (annual progress report). Colorado Division of Wildlife, Denver. 59 pages.
 

 Radant, R.D. 1986. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Progress report SE-2(CO-OP), January 1 - June 31, 1986. Utah Division of Wildlife Resources, Salt Lake City. 3 pages.
 

 Rinne, J.N., J.E. Johnson, B.L. Jensen, A.W. Ruger and R. Sorensen. 1986. Role of hatcheries in the management and recovery of threatened and endangered fishes: fish culture in fisheries management. Pages 271-285 in R.H. Stroud, ed. Fish Culture In Fisheries Management, Proceedings of a Symposium on the Role of Fish Culture in Fisheries Management. American Fisheries Society, Fish Culture Section and Fisheries Management Section, Bethesda, Maryland.
 

 Rosenfeld, M.J. 1986. Morphometry in chubs of the genus Gila from the Green and Colorado Rivers, Colorado and Utah. Principal component analysis. Utah Museum of Natural History, Salt Lake City. 38 pages.
 

 Rosenfeld, M.J. 1986. Preliminary electrophoretic study of the Colorado River chub (Pisces: Cyprinidae, Genus Gila) complex. University of Utah, Salt Lake City. 36 pages.
 

 Spear, M. 1986. Letter and permit to Dr. W.L. Minckley granting permission to take, hold, maintain, and propagate certain endangered fishes. U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 2 pages.
 

 Stanford, J.A. and J.V. Ward. 1986. Fish of the Colorado system. Pages 385-403 in B.R. Davies and K.F. Walker, eds. The Ecology of River Systems. Dr. W. Junk, Publishers, Dordrecht, The Netherlands.
 

 Tyus, H.M., R.A. Valdez and R.D. Williams. 1986. Status of endangered fishes in the upper Colorado River, 1985. Proceedings of the American Fisheries Society Bonneville Chapter 1986:20-30.
 

 U.S. Army Corps of Engineers. 1986. Redlands Dam fishway feasibility study, Gunnison River, Colorado. Final report to U.S. Fish and Wildlife Service. U.S. Army Corp of Engineers.
 

 Valdez, R.A., R.J. Ryel and R. Williams. 1986. Endangered fishes of Cataract Canyon: the importance of the Colorado River above Lake Powell to the Colorado squawfish, humpback chub, and bonytail. U.S. Bureau of Reclamation and Ecosystems Research Institute, Logan, Utah.
 

 Wick, E.J., J.A. Hawkins and C.A. Carlson. 1986. Colorado squawfish and humpback chub population and habitat monitoring. Final Report SE-3-8. Colorado Division of Wildlife, Denver. 21 pages.
 

 Carothers, S.W. 1987. Wildlife of the Colorado Plateau. Plateau 57(4):13-34.
 

 Colorado River Wildlife Council. 1987. Minutes Colorado River Fish & Wildlife Council, Flamingo Hilton Hotel, Las Vegas, Nevada. Colorado River Wildlife Council.
 

 Desert Fishes Council. 1987. Proceedings of the Desert Fishes Council Volume XIX Annual Symposium. Desert Fishes Council, Bishop, California. 182 pages.
 

 Desert Fishes Council. 1987. Proceedings of the Desert Fishes Council Volumes XVI-XVIII Annual Symposia. Desert Fishes Council, Bishop, California. 254 pages.
 

 Hamill, J. 1987. Letter to W.L. Minckley regarding the updating of the Colorado squawfish, humpback chub, bonytail chub recovery plans. U.S. Fish and Wildlife Service, Denver, Colorado. 26 pages.
 

 Johnson, J.E. 1987. Protected fishes of the United States and Canada. American Fisheries Society (Bethesda). 41 pages.
 

 Maddux, H.R., D.M. Kubly, J.C. deVos, Jr., W.R. Persons, R. Staedike and R.L. Wright. 1987. Effects of varied flow regimes on aquatic resources of Glen and Grand Canyons. Final report, U.S. Bureau of Reclamation Contract 4-AG-40-01810. Arizona Game and Fish Department, Phoenix. 291 pages.
 

 Matthews, W.J. and D.C. Heins. 1987. Community and Evolutionary Ecology of North American Stream Fishes. University of Oklahoma Press, Norman. 310 pages.
 

 Meffe, G.K. and W.L. Minckley. 1987. Persistence and stability of fish and invertebrate assemblages in a repeatedly disturbed Sonoran Desert stream. The American Midland Naturalist 117:177-191.
 

 Minckley, W.L. and G.K. Meffe. 1987. Differential selection for native fishes by flooding in streams of the arid American Southwest. Pages 93-104 in W.J. Matthews and D.C. Heins, eds. Ecology and Evolution of North American Stream Fish Communities, University of Oklahoma Press, Norman.
 

 National Research Council. 1987. River and Dam Management: A Review of the U.S. Bureau of Reclamation's Glen Canyon Environmental Studies. National Academy Press, Washington, D.C. 152 pages.
 

 Nesler, T.P. 1987. Aquatic nongame research squawfish-humpback studies. Colorado Division of Wildlife, Fort Collins. 35 pages.
 

 Thayn, G. F., J.E. Farringer and R. Ruesink. 1987. Influence of endangered fish protection on water development projects in the upper Colorado River system. Pages 115-122 In Water resources related to mining and energy--preparing for the future. American Water Resources Association, Bethesda, Maryland.
 

 Tyus, H.M., R.L. Jones and L.A. Trincam. 1987. Green River rare and endangered fish studies 1982-1985. Final report. (BR-FWS Contract 20740L3083). U.S. Fish and Wildlife Service, Colorado River Fishes Monitoring Project, Vernal, Utah. 117 pages.
 

 U.S. Bureau of Reclamation. 1987. Glen Canyon Environmental Studies draft report, September 1987. U.S. Department of the Interior, Washington, D.C.
 

 U.S. Fish and Wildlife Service. 1987. Endangered and threatened species of Arizona and New Mexico. U.S. Fish and Wildlife Service, Region 2, Albuquerque, New Mexico. Pages 43-44.
 

 U.S. Fish and Wildlife Service. 1987. Recovery implementation program for endangered fish species in the upper Colorado River basin. Final report. U.S. Fish and Wildlife Service, Denver, Colorado.
 

 Valdez, R.A. and R.D. Williams. 1987. Endangered fishes of Cataract Canyon. Proceedings of the Desert Fishes Council 16-18:212-219.
 

 Valdez, R.A., P.B. Holden and T.B. Hardy. 1987. Assimilation of habitat utilization data for endangered fishes of the upper Colorado River basin (a case history). Proceedings of the Desert Fishes Council 19:95-112.
 

 Valdez, R.A., P.B. Holden, T.B. Hardy and R.J. Ryel. 1987. Habitat suitability index curves for endangered fishes of the upper Colorado River basin. Final report. U.S. Fish and Wildlife Service, HSI Curve Development Project, BIO/WEST, Logan, Utah. No. 14-16-0006-86-055.
 

 Valdez, R.A., P.B. Holden, T.B. Hardy and R.J. Ryel. 1987. Summary documentation and preliminary SI curves. BIO/WEST, Inc., Logan, Utah. 56 pages.
 

 Wydoski, R.S. 1987. Assessment of introduced sport fishes as potential competitors with or predators upon the rare Colorado River fishes with reference to fishery management in Kenney Reservoir. U.S. Fish and Wildlife Service, Denver, Colorado. 20 pages.
 

 Arizona Game and Fish Department. 1988. Threatened native wildlife in Arizona. Arizona Game and Fish Department, Phoenix. 32 pages.
 

 Arizona Game and Fish Department. 1988. Threatened native wildlife in Arizona. Arizona Game and Fish Department, Phoenix. 32 pages.
 

 Colorado River Wildlife Council. 1988. Minutes Colorado River Fish & Wildlife Council, Holiday Inn Pyramid Albuquerque, New Mexico. Colorado River Wildlife Council.
 

 Ferriole, S. 1988. Wildlife resource information system: humpback chub mapping criteria for the Colorado, Dolores, Gunnison, Green, White, and Yampa Rivers. Colorado Division of Wildlife, Grand Junction. 20 pages.
 

 Grabowski, S.J. and S.D. Hiebert. 1988. Green River trophic dynamics study 1987. Draft. U.S. Bureau of Reclamation, Denver, Colorado. 176 pages.
 

 Grabowski, S.J. and S.E. Hiebert. 1988. Green River trophic dynamics study. U.S. Bureau of Reclamation, Division of Research and Laboratory Services, Applied Sciences Branch, Environmental Sciences Section, Denver. 131 pages.
 

 Hendrickson, D.A. 1988. Nongame field note. Humpback chub. Wildlife Views 31(9):20.
 

 J.F. Sato and Associates, Inc. 1988. Annual site environmental report for calendar year 1988. J.F. Sato and Associates, Inc., Littleton, Colorado. 43 pages.
 

 Minckley, C.O. 1988. Research conducted on the Little Colorado river population of the humpback chub during May, 1987-1988. Final report. Northern Arizona University, Department of Biology, Flagstaff. 131 pages.
 

 Muth, R.T. 1988. Description and identification of bonytail, humpback, and roundtail chub larvae and early juveniles. Endangered Wildlife Investigations. 57 pages.
 

 No author. 1988. Arizona nongame strategic plans 1987-1991. Federal Project FW-11-R. Arizona Game and Fish Department, Phoenix. 61 pages.
 

 Rose, S. and J. Hamill. 1988. Help is on the way for rare fishes of the upper Colorado River basin. Endangered Species Technical Bulletin 13(3):1-7.
 

 Tyus, H.M. and C.A. Karp. 1988. Stream flow needs of rare and endangered fishes, Yampa River, Colorado. U.S. Fish and Wildlife Service, Colorado River Fishes Project, Vernal, Utah. 54 pages.
 

 Tyus, H.M. and W.L. Minckley. 1988. Migrating Mormon crickets, Anabrus simplex (Orthoptera: Tettigoniidae), as food for stream fishes. Great Basin Naturalist 48(1):25-30.
 

 U.S. Bureau of Reclamation. 1988. Glen Canyon Environmental Studies executive summaries of technical reports. U.S. Department of the Interior, U.S. Department of Energy and Arizona Game and Fish Department. 411 pages.
 

 U.S. Department of Agriculture. 1988. Regional Forester’s Sensitive Species List. U.S. Department of Agriculture Forest Service Region 3.
 

 U.S. Department of the Interior. 1988. Glen Canyon Environmental Studies executive review committee report, May 1988. U.S. Department of the Interior. 124 pages.
 

 U.S. Department of the Interior. 1988. Glen Canyon Environmental Studies executive summaries of technical reports, November 1988. U.S. Department of the Interior.
 

 U.S. Department of the Interior. 1988. Glen Canyon Environmental Studies. Final report, January 1988. U.S. Department of the Interior.
 

 U.S. Fish and Wildlife Service. 1988. Recovery implementation program for endangered fish species in the upper Colorado River basin. U.S. Fish and Wildlife Service.
 

 U.S. Fish and Wildlife Service. 1988. Strategy for determination of habitat requirements for the rare fishes of the upper Colorado River basin. U.S. Fish and Wildlife Service. 11 pages.
 

 Valdez, R.A. 1988. Cataract Canyon trip report No. 2, assess reproductive activity of humpback chub. BIO/WEST, Inc., Logan, Utah. 11 pages.
 

 Valdez, R.A. 1988. Fisheries biology and rafting. Annual summary report for 1987, contribution 6-CS-40-03980, PR-l34-2. BIO/WEST, Inc., Logan, Utah. 45 pages.
 

 Williams, J.E., D.W. Sada, C.D. Williams, P.C. Marsh and other members of the Western Division Endangered Species Committee. 1988. American Fisheries Society guidelines for introductions of threatened and endangered fishes. Fisheries 13(5):5-11.
 

 Carlson, C.A. and R.T. Muth. 1989. Colorado River: lifeline of the American Southwest. Canadian Special Publication of Fisheries and Aquatic Sciences 106:220-239.
 

 Colorado Division of Wildlife. 1989. Wildlife in danger. U.S. Department of Wildlife, Department of Natural Resources, Denver. 37 pages.
 

 Douglas, M.E., W.L. Minckley and H.M. Tyus. 1989. Qualitative characters, chubs of the genus Gila (Pisces: Cyprinidae) and the "art of seeing well". Copeia 3:653-662.
 

 Karp, C.A. and H.M. Tyus. 1989. Ecology and status of the humpback chub (Gila cypha) in the Yampa River. U.S. Fish and Wildlife Service, Vernal, Utah.
 

 Karp, C.A. and H.M. Tyus. 1989. Ecology and status of the humpback chub (Gila cypha) in the upper Green River Basin. U.S. Fish and Wildlife Service, Colorado River Fishes Project, Vernal, Utah. 14 pages.
 

 Karp, C.A. and H.M. Tyus. 1989. Habitat use, spawning, and species associations of humpback chub, Gila cypha, in the Yampa and Green Rivers, Dinosaur National Monument, Colorado and Utah. U.S. Fish and Wildlife Service, Vernal, Utah. 24 pages.
 

 McAda, C.W. 1989. Evaluation of the interagency standardized monitoring program. U.S. Fish and Wildlife Service, Grand Junction, Colorado. 52 pages.
 

 McAda, C.W. 1989. Results of the interagency standardized monitoring program, 1988. U.S. Fish and Wildlife Service, Grand Junction, Colorado. 17 pages.
 

 McAda, C.W. 1989. Summary of the statistical power of the Interagency Standardized Monitoring Program. U.S. Fish and Wildlife Service, Grand Junction, Colorado. 26 pages.
 

 McAda, C.W. and L.R. Kaeding. 1989. Relations between the habitat use of age-0 Colorado squawfish and those of sympatric fishes in the upper Colorado River basin. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 41 pages.
 

 Nesler, T.P. 1989. Aquatic nongame research endangered fishes investigations: Little Snake River habitat use by endangered fishes. Colorado Division of Wildlife. 18 pages.
 

 Nesler, T.P. 1989. Aquatic nongame research endangered fishes investigations. Colorado Division of Wildlife Fish Research Section, Fort Collins. 47 pages.
 

 Rosenfeld, M.J. and J.A. Wilkinson. 1989. Biochemical genetics of the Colorado River Gila complex (Pisces: cyprinidae). Southwestern Naturalist 34(2):232-244.
 

 Starnes, W.C. 1989. Colorado River Basin Gila taxonomy project, Phase I report, part 1, review of existing information on taxonomy and distribution, activities of researchers, and collections resources for fishes of the cyprinid genus Gila from the Colorado River basin. U.S. Fish and Wildlife Service, Denver. Cooperative Agreement Number 14-16-0006-89-913. 117 pages.
 

 Tyus, H.M. and C.A. Karp. 1989. Habitat use and stream flow needs of rare and endangered fishes, Yampa River, Colorado. U.S. Fish and Wildlife Service Biological Report 89(14):1-27.
 

 Tyus, H.M. and N.J. Nikirk. 1989. Abundance, growth, and diet of channel catfish (Ictalurus punctatus) in the Green and Yampa Rivers, Colorado and Utah. U.S. Fish and Wildlife Service, Vernal, Utah, and University of Washington, Seattle. 23 pages.
 

 U.S. Bureau of Reclamation. 1989. Ruedi Reservoir, Colorado Round II Water Marketing Program, Final Supplement to the Environmental Statement. Frying Pan-Arkansas Projects, Colorado and U.S. Bureau of Reclamation, Billings, Montana.
 

 U.S. Fish and Wildlife Service. 1989. Recovery implementation program for endangered fish species in the Colorado River basin, fiscal year 1990 work plan. U.S. Fish and Wildlife Service.
 

 Valdez, R.A. 1989. Informal larval/young-of-the-year humpback chub survey, field notes and observations, May 21-22, 1989. 9 pages.
 

 Wick, E.J. and J.A. Hawkins. 1989. Colorado squawfish winter habitat study, Yampa River, Colorado. Final report. Colorado State University Larval Fish Laboratory, Fort Collins.
 

 Wick, E.J. and J.A. Hawkins. 1989. Observations on use of the Little Snake River in Colorado, by endangered Colorado squawfish and humpback chub, 1988. Colorado State University Larval Fish Laboratory, Fort Collins. 10 pages.
 

 Williams, I.E., J.E. Johnson, D.A. Hendrickson, S. Contreras-Balderas, J.D. Williams, M. Navarro-Mendoza, D.E. McAllister and J.E. Deacon. 1989. Fishes of North America: endangered, threatened, or of special concern 1989. Fisheries 14(6):2-22.
 

 Wydoski, R.S. and J.F. Hamill. 1989. Evolution of a Cooperative Recovery Program for Endangered Fishes in the Upper Colorado River Basin. Draft. U.S. Fish and Wildlife Service. 28 pages.
 

 Colorado River Fishes Recovery Team. 1990. Humpback chub recovery plan. U.S. Fish and Wildlife Service, Denver, Colorado.
 

 Colorado River Recovery Implementation Committee. 1990. Recovery implementation program for endangered fish species in the upper Colorado River basin. U.S. Fish and Wildlife Service, Denver, Colorado. 11 pages.
 

 Hendrickson, D.A. and D.M. Kubly. 1990. Grand Canyon humpback chub and razorback sucker monitoring project 1990 scope of work submitted 2/8/90 to National Park Service, Grand Canyon and Navajo Fish and Wildlife Window Rock, Arizona. Arizona Game and Fish Department, Phoenix. 31 pages.
 

 Kaeding, L.R., B.D. Burdick, P.A. Schrader and C.W. McAda. 1990. Temporal and spatial relations between the spawning of humpback chub and roundtail chub in the upper Colorado River. Transactions of the American Fisheries Society 119:135-144.
 

 Karp, C.A. and H.M. Tyus. 1990. Humpback chub, Gila cypha, in the Yampa and Green Rivers, Dinosaur National Monument, USA, with observations of roundtail chub, Gila robusta and other sympatric fishes. Great Basin Naturalist 50(3):257-264.
 

 Karp, C.A. and H.M. Tyus. 1990. Humpback chub (Gila cypha) in the Yampa and Green Rivers, Dinosaur National Monument, with observations on roundtail chub (G. robusta) and other sympatric fishes. Great Basin Naturalist 50(3):257-264.
 

 Kubly, D.M. 1990. Endangered humpback chub (Gila cypha) in Arizona a review of past studies and suggestions for future research report, U.S. Bureau of Reclamation, Salt Lake City. Draft, February, 1990. Arizona Game and Fish Department, Phoenix. 138 pages.
 

 Miller, A.S. and W.A. Hubert. 1990. Compendium of existing knowledge for use in making habitat management recommendations for the upper Colorado River basin. U.S. Fish and Wildlife Service, Region 6, Denver and University of Wyoming, Laramie. 470 pages.
 

 Minckley, C.O. 1990. Research conducted on the Little Colorado River population of the humpback chub during April-May 1990. Final report. Arizona Game and Fish Department, Phoenix. 44 pages.
 

 Minckley, C.O. 1990. Observed growth in the humpback chub based on tagging returns. Proceedings of the American Fisheries Society Arizona-New Mexico Chapter.
 

 Muth, R.T. 1990. Ontogeny and taxonomy of humpback chub, bonytail and roundtail chub larvae and early juveniles. Doctoral dissertation, Colorado State University, Fort Collins. 262 pages.
 

 Nesler, T.P. 1990. Aquatic nongame research endangered fishes investigations. Colorado Division of Wildlife Fish Research Section, Fort Collins. 31 pages.
 

 Pister, E.P. 1990. Desert fishes: an interdisciplinary approach to endangered species conservation in North America. Journal of Fish Biology 37(Suppl. A):183-187.
 

 Pucherelli, M.J., R.C. Clark and R.D. Williams. 1990. Upper basin interagency standardized monitoring program 1989: Green and Colorado Rivers habitat mapping using airborne video. U.S. Bureau of Reclamation, Denver, Colorado. 82 pages.
 

 Spamer, E.E. 1990. Bibliography of the Grand Canyon and the lower Colorado River from 1540. Grand Canyon Natural History Association Monograph Number 8, Grand Canyon, Arizona.
 

 St. Amant, J., S. Petersburg and H. Tyus. 1990. Humpback chub 2nd revised recovery plan. U.S. Fish and Wildlife Reference Service, Rockville, Maryland. 43 pages.
 

 Stames, W.C. 1990. Colorado River Basin Gila taxonomy project, Phase I report, part 2, management concerns, priority research needs, and proposed research plan and part 3 sampling guidelines. U.S. Fish and Wildlife Service, Denver. Cooperative Agreement Number 14-16-0006-89-913.
 

 Stevens, L.E. 1990. Biology and ecology of the Grand Canyon region. Section 4:3-29 In Bibliography of the Grand Canyon and the lower Colorado River, Grand Canyon Natural History Association Monograph Number 8, Grand Canyon, Arizona.
 

 Tyus, H.M. 1990. Effects of altered stream flows on fishery resources. Fisheries 15(3):18-20.
 

 Tyus, H.M. 1990. Management of native warmwater fishes of the upper Colorado River. 13 pages.
 

 Tyus, H.M. and N.J. Nikirk. 1990. Abundance, growth, and diet of channel catfish (Ictalurus punctatus) in the Green and Yampa Rivers, Colorado and Utah. Southwestern Naturalist 35:233-244.
 

 Tyus, H.M., J.H. Williamson and P.B. Johnsen. 1990. Chemoreception, imprinting, and propagation of Colorado squawfish and razorback sucker. Final report to the Upper Colorado River Basin Recovery Implementation Program. U.S. Fish and Wildlife Service, Region 6, Denver, Colorado.
 

 U.S. Bureau of Reclamation. 1990. Memorandum: Comments on the draft biological/hydrological reports and draft biological opinion for the operation of Flaming Gorge Dam. U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 U.S. Environmental Protection Agency. 1990. Protecting endangered species: interim measures, Oliver County, North Dakota. U.S. Environmental Protection Agency, Pesticides and Toxic Substances, Washington, D.C. 4 pages.
 

 U.S. Fish and Wildlife Service. 1990. Humpback chub, Gila cypha. Official World Wildlife Fund Guide to Endangered Species of North America 2:873-874.
 

 U.S. Fish and Wildlife Service. 1990. Recovery program for the endangered fishes of the upper Colorado: five-year plan for information and education. Information and Education Subcommittee, Recovery Implementation Program 1990. 14 pages.
 

 U.S. Fish and Wildlife Service. 1990. Study to determine the biological feasibility of pit tags for endangered fishes in the upper Colorado River basin. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 31 pages.
 

 U.S. Fish and Wildlife Service. 1990. Streamflow needs of rare and endangered fishes: Yampa River interim flow recommendations. Final report. U.S. Fish and Wildlife Service. 13 pages.
 

 Valdez, R.A. 1990. Humpback chub, possible bonytail discovered in Cataract Canyon. Recovery Implementation Program for Endangered Fishes of the Upper Colorado River Basin. 1 page.
 

 Valdez, R.A. 1990. Endangered fish of Cataract Canyon. Report U.S. Bureau of Reclamation Contract Number 6-CS-40-03980. BIO/WEST, Inc., Logan, Utah. 94 pages +.
 

 Valdez, R.A. and W.J. Masslich. 1990. Humpback chub monitoring in Cataract Canyon. Interim report. BIO/WEST, Inc., Logan, Utah. 17 pages.
 

 Valdez, R.A., P.B. Holden and T.B. Hardy. 1990. Habitat suitability index curves for humpback chub of the upper Colorado River basin. Rivers 1(1):31-42.
 

 Williamson, J.H. 1990. Chub identification methods to be developed, refined. Colorado Division of Wildlife Recovery Program for Endangered Fishes of the Upper Colorado River Basin.
 

 Yard M.D., R.D. Williams and D.L. Wegner. 1990. Feasibility of employing radiotelemetry in the Grand Canyon on the endangered humpback chub. Phase II report. U.S. Bureau of Reclamation, Glen Canyon Environmental Survey. 49 pages.
 

 Angradi, T., R. Clarkson, A. Kinsolving, D. Kubly and S. Morgensen. 1991. Glen Canyon Environmental Studies Phase II annual summary report. Arizona Game and Fish Department, Research Branch, Phoenix.
 

 Colorado River Fishes Recovery Team. 1991. Colorado squawfish revised recovery plan (Original approved March 16, 1978). Colorado River Fishes Recovery Team. 56 pages.
 

 Commission on Geosciences, Environment and Resources. 1991. Colorado River Ecology and Dam Management: Proceedings of a Symposium May 24-25, 1990 Santa Fe, New Mexico. National Academy Press, Washington, D.C. 276 pages.
 

 Desert Fishes Council. 1991. Proceedings of the Desert Fishes Council Volumes XX and XXI Annual Symposia. Desert Fishes Council, Bishop, California. 279 pages.
 

 Douglas, M.E. and P.C. Marsh. 1991. Ecology and conservation biology of humpback chub (Gila cypha) in the Little Colorado River. Progress report for cooperative agreement l-FC-40-10490. Arizona State University Department of Zoology, Tempe. 6 pages.
 

 Echell, A.A. 1991. Conservation genetics and genetic diversity in freshwater fishes of Western North America. Pages 141-153 in W.L. Minckley and J.E. Deacon, eds. Battle Against Extinction: Native Fish Management in the American West. University of Arizona Press, Tucson.
 

 Hawkins, J.A. and T.P. Nesler. 1991. Nonnative fishes in the upper Colorado River basin: an issue paper. Colorado State University, Fort Collins. 72 pages.
 

 Holden, P.B. 1991. Ghosts of the Green River: impacts of Green River poisoning in management of native fishes. Pages 43-54 in W.L. Minckley and J.E. Deacon, eds. Battle Against Extinction: Native Fish Management in the American West. University of Arizona Press, Tucson.
 

 J.F. Sato and Associates, Inc. 1991. Annual site environmental report for calendar year 1991. J.F. Sato and Associates, Inc., Littleton, Colorado. 45 pages.
 

 Johnson, J.E. and B.L. Jensen. 1991. Hatcheries for endangered freshwater fishes. Pages 199-217 in W.L. Minckley and J.E. Deacon, eds. Battle Against Extinction: Native Fish Management in the American West. University of Arizona Press, Tucson.
 

 Minckley, C.O. 1991. Observations on the Little Colorado River population of the humpback chubs, during May 1987, 1988. Proceedings of the Desert Fishes Council 20:67.
 

 Minckley, W.L. 1991. Native fishes of the Grand Canyon Region: an obituary? Pages 124-177. In Colorado River Ecology and Dam Management. Proceedings of a Symposium May 24-25, 1990, Santa Fe, New Mexico. National Academic Press, Washington D.C. 228 pages.
 

 Minckley, W.L. and J.E. Deacon, eds. 1991. Battle Against Extinction: Native Fish Management in the American West. University of Arizona Press, Tucson. 517 pages.
 

 Page, L.M. and B. M. Burr. 1991. Field Guide to Freshwater Fishes. Houghton Mifflin Company, Boston.
 

 Rinne, J.N. and W.L. Minckley. 1991. Native fishes of arid lands: a dwindling resource of the desert southwest. General techical report RM-206. U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, Colorado. 45 pages.
 

 Rolston, H., III.  1991. Fishes in the desert: paradox and responsibility. Pages 93-108 in W.L. Minckley and J.E. Deacon, eds. Battle Against Extinction: Native Fish Management in the American West. University of Arizona Press, Tucson.
 

 Tyus, H.M. 1991. Management of Colorado River fishes. U.S. Forest Service General Technical Report 207:175-182.
 

 Tyus, H.M. 1991. Management of native warmwater fishes of the upper Colorado River. Pages 175-182 in Warmwater Fishes Symposium I. U.S.DA Forest Service Technical Report RM-207.
 

 Tyus, H.M. and C.A. Karp. 1991. Habitat use and stream flow needs of rare and endangered fishes in the Green River, Utah. Final report. U.S. Fish and Wildlife Service, Flaming Gorge Studies Program, Colorado River Fishes Project, Vernal, Utah. 54 pages.
 

 Valdez, R.A. 1991. Characterization of the life history and ecology of the humpback chub in the Grand Canyon. Annual report 1990, contract no. 0-CS-40-091 10. BIO/WEST, Inc. and U.S. Bureau of Reclamation, Upper Colorado River Basin, Salt Lake City, Utah.
 

 Valdez, R.A. and A. Valdez-Gonzeles. 1991. Field spawning of endangered humpback chub (Gila cypha). Proceedings of the American Fisheries Society Bonneville Chapter.
 

 Valdez, R.A. and R.G. Williams. 1991. Endangered fishes of Cataract Canyon. Proceedings of the Desert Fishes Council 20:25.
 

 Wick, E.J., J.A. Hawkins and T.P. Nesler. 1991. Occurrence of two endangered fishes in the Little Snake River, Colorado. Southwestern Naturalist 36(2):251-254.
 

 Wick, E.J., J.A. Hawkins and T.P. Nesler. 1991. Use of the Little Snake River in Colorado by endangered Colorado squawfish and humpback chub. Proceedings of the Desert Fishes Council 21:225.
 

 Angradi, T.R., R.W. Clarkson, D.A. Kinsolving, D.M. Kubly, S.A. Morgensen. 1992. Glen Canyon Dam and the Colorado River: responses of the aquatic biota to dam operations. Cooperative agreement No. 9-FC-40-07940. Arizona Game and Fish Department.
 

 Baker, P. and T. Harney. 1992. Survey studies rare U.S. fish. Today's Aquarist 5(8):8-10.
 

 Desert Fishes Council. 1992. Proceedings of the Desert Fishes Council Volume XXIV Annual Symposium. Desert Fishes Council, Bishop, California. 95 pages.
 

 Desert Fishes Council. 1992. Proceedings of the Desert Fishes Council Volumes XXII and XXIII Annual Symposia and Index for Volumes XVI through XXIII. Desert Fishes Council, Bishop, California. 99 + pages.
 

 Gobalet, K.W. 1992. Colorado River fishes of Lake Cahuilla, Salton basin, southern California: a cautionary tale for zooarchaelogists. Bulletin of the Southern California Academy of Sciences 91(2):70-83.
 

 Hamill, J. 1992. Restoring and protecting instream flows for endangered fish in the upper Colorado River basin. Upper Colorado River Basin Recovery Program, Denver, Colorado. 13 pages.
 

 Marsh, P.C. and M.E. Douglas. 1992. Movement of endangered humpback chub Gila cypha within the Little Colorado River in the Grand Canyon, Arizona. Western Division of the American Fisheries Society. 21 pages.
 

 Masslich, W.J. and R.A. Valdez. 1992. Dolores River as a reintroduction site for Colorado squawfish (Ptychocheilus lucius). Proceedings of the Desert Fishes Council 23:16.
 

 Minckley, C.O. 1992. Bibliography of the federally endangered humpback chub (Gila cypha) in the Colorado River basin. U.S. Fish and Wildlife, Arizona Fishery Resources Office, Parker, Arizona.
 

 Minckley, C.O. 1992. Synthesis of information on the humpback chub in the Colorado River basin. Final report. Glen Canyon Environmental Studies contract 1-FC-40-10500. U.S. Fish and Wildlife Service.
 

 Minckley, C.O. 1992. Observed growth and movement in individuals of the Little Colorado population of the humpback chub (Gila cypha). Proceedings of the Desert Fishes Council 22:35-36.
 

 Robinson, A.T. 1992. Behavioral ecology of young-of-the-year native fish in the Little Colorado River of the Grand Canyon, with emphasis on humpback chub (Gila cypha). Proceedings of the American Fisheries Society Arizona-New Mexico Chapter.
 

 Robinson, A.T. and R.W. Clarkson. 1992. Annual spring monitoring of humpback chub (Gila cypha) populations in the Little Colorado River, Grand Canyon, Arizona, 1987-1992. Project E5-2. Endangered Species Act Section 6 report. 30 pages.
 

 Snyder, D.E. 1992. Impacts of electrofishing on fish. Colorado State University Larval Fish Laboratory Contribution 50, Fort Collins. 107 + pages.
 

 Tyus, H.M. 1992. An instream flow philosophy for recovering endangered Colorado River fishes. Rivers 3(1):27-36.
 

 U.S. Bureau of Reclamation. 1992. Study of alternative water supplies for endangered fishes in the "15-Mile Reach" of the Colorado River. U.S. Bureau of Reclamation, Upper Colorado Region, Grand Junction, Colorado. 78 pages.
 

 U.S. Fish and Wildlife Service. 1992. Biological opinion on operation of Flaming Gorge Dam. Final. U.S. Fish and Wildlife Service, Denver, Colorado.
 

 Valdez, R.A. and A. Wasowicz. 1992. Nonlethal stomach pumping technique to recover gut contents of roundtail chub. BIO/WEST, Inc., Logan, Utah. 9 pages.
 

 Valdez, R.A. and W.J. Masslich. 1992. Activity of adult humpback chub under fluctuating flows in the Colorado River, Grand Canyon. Western Division of the American Fisheries Society. 21 pages.
 

 Valdez, R.A., W.J. Masslich, L. Crist and W. Leibfried. 1992. Investigations of the life history and ecology of the humpback chub (Gila cypha) in the Grand Canyon. Proceedings of the Desert Fishes Council 23:15.
 

 Wick, E.J. 1992. River management and habitat restoration strategy. Proceedings of the Desert Fishes Council 22-23:71-75.
 

 Allan, N.L. 1993. Distribution and abundance of fishes in Shinumo Creek in the Grand Canyon. Master's thesis, University of Arizona, Tucson.
 

 Arizona Game and Fish Department. 1993. Glen Canyon Environmental Studies. Final report - mainstream studies. Cooperative agreement No. 9-FC-40-07940. Arizona Game and Fish Department, Phoenix.
 

 Brookshire, D.S., M. McKee and G. Watts. 1993. Economic analysis of proposed critical habitat designation in the Colorado River basin for the razorback sucker, humpback chub, Colorado squawfish, and bonytail. Draft. U.S. Bureau of Land Management, Washington, D.C. 47 pages.
 

 Carlson, C.A. and R.T. Muth. 1993. Endangered species management. Pages 431-454 in C.C. Kohler and W.A. Huber, eds. Inland Fisheries Management, American Fisheries Society, Bethesda, Maryland.
 

 Clarkson, R.W. 1993. Unpublished data on fecundity of humpback chub in the Little Colorado River, Grand Canyon, Arizona. Arizona Game and Fish Department, Phoenix.
 

 Clarkson, R.W. 1993. Foods of young-of-year native fishes in the Little Colorado River, Arizona, and infestation patterns by Asian fish tapeworm Bothriocephalus acheilognathi. Proceedings of the Desert Fishes Council 24:27.
 

 Colorado Weed Management Association. 1993. Colorado's 30 troublesome weeds plants that threaten our natural resources. Colorado Weed Management Association, second edition. 74 pages.
 

 DeMarais, B.D. and T.E. Dowling. 1993. Introgressive hybridization and evolution of Colorado River basin Gila (Teleostei: Cyprinidae). Proceedings of the Desert Fishes Council 24:67.
 

 Desert Fishes Council. 1993. Proceedings of the Desert Fishes Council Volume XXV Annual Symposium. Desert Fishes Council, Bishop, California. 80 pages.
 

 Douglas, M.E. 1993. Analysis of sexual dimorphism in an endangered cyprinid fish (Gila cypha Miller) using video image technology. Copeia (2):334-343.
 

 Douglas, M.E. and P.C. Marsh. 1993. Monthly population estimates of endangered humpback chub (Gila cypha) in the Little Colorado River of Arizona. Proceedings of the Desert Fishes Council 24:65-66.
 

 Evans, P. 1993. Recovery partnership for the upper Colorado River to meet ESA Section 7 needs. Natural Resources and Environment 71:24-25.
 

 Gorman, O.T., S.C. Leon and O.E. Maughan. 1993. Habitat use by humpback chub, Gila cypha, in the Little Colorado River and other tributaries of the Colorado River. Proceedings of the Desert Fishes Council 24:20-21.
 

 Hamill, J. 1993. Upper Colorado River basin endangered fish recovery initiative. Working Paper 93-12, September 27, 1993. Intractable Conflict/Constructive Confrontation Project, Conflict Resolution Consortium, University of Colorado, Boulder, Colorado. 4 pages.
 

 Hendrickson, D.A. 1993. Progress report on study of the utility of data obtainable from otoliths to management of humpback chub (Gila cypha) in the Grand Canyon. Arizona Game and Fish Department, Non-Game and Endangered Wildlife Program, Phoenix.
 

 Hepworth, D.K., M.J. Ottebbacher and D.L. Archer.  1993. An evaluation of native fishes of the Fremont River in or near Capitol Reef National Park. Utah Division of Wildlife Resources Publication 5(93-5):1-17.
 

 Jacobs Engineering Group, Inc. 1993. Environmental assessment of remedial action at the Maybell Uranium Mill Tailings Site near Maybell, Colorado. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 129 pages.
 

 Jacobs Engineering Group, Inc. 1993. Environmental assessment of remedial action at the Naturita Uranium Processing Site near Naturita, Colorado. Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 131 pages.
 

 Kubly, D.M. and K.L. Young. 1993. Arizona Game and Fish Department, 1991-1992 activities. Proceedings of the Desert Fishes Council 24:7-8.
 

 Maddux, H.R. 1993. Overview of the proposed critical habitat designation for the four Colorado River endangered fishes. U.S. Fish and Wildlife Service, Salt Lake City, Utah. 65 pages.
 

 Maddux, H.R., L.A. Fitzpatrick, W. Noonan and H. Tyus. 1993. Proposed determination of critical habitat for the Colorado River endangered fishes: razorback sucker, Colorado squawfish, humpback chub and bonytail chub. Federal Register 58(18):6578-6597.
 

 Maddux, H.R., L.A. Fitzpatrick, W. Noonan and H. Tyus. 1993. Colorado River endangered fishes critical habitat: biological support document. U.S. Fish and Wildlife Service, Salt Lake City, Utah. 225 pages.
 

 Masslich, W.J., B.R. Cowdell and R.A. Valdez. 1993. Radiotelemetry studies of humpback chub Gila cypha in the Colorado River, Grand Canyon, Arizona. Proceedings of the Desert Fishes Council 24:68-69.
 

 Mattes, W.P. 1993. An evaluation of habitat conditions and species composition above, in, and below the Atomizer Falls complex of the Little Colorado River. Master's thesis, University of Arizona, Tucson.
 

 Moeller, K.L., L.M. Malinowski, J.F. Hoffecker, D.A. Walitschek, L. Shogren, J.E. Mathews and B.T. Verhaaren. 1993. Class 1 overview of cultural resources for the Western Area Power Administration Salt Lake City Area Integrated Projects electric power marketing environmental impact statement. Argonne National Laboratory, Illinois. 113 pages.
 

 Quartarone, F.G. 1993. Results of a historical research project about the endangered fish of the upper Colorado River basin. Proceedings of the Desert Fishes Council 24:37-38.
 

 Rahel, F.J., R.T. Muth and C.A. Carlson. 1993. Endangered species management. Chapter 16 in C. Kohler and W. Hubert, eds. Inland Fisheries Management in North America. American Fisheries Society, Bethesda, Maryland.
 

 Robinson, A.T. 1993. Feeding behavior and ecology of young-of-the-year native fish in the Little Colorado River of the Grand Canyon. Proceedings of the Desert Fishes Council 24:39.
 

 Stanford, J.A. 1993. Instream flows to assist the recovery of endangered fishes of the upper Colorado River basin: review and synthesis of ecological information, issues, methods and rationale. 89 pages.
 

 Tremble, M. 1993. Little Colorado River. Pages 283-289 in Riparian Management: Common Threads and Shared interests, A Western Regional Conference on River Management Strategies. U.S. Forest Service, Gen. Tech. Report. Pages RM-226.
 

 Tyus, H.M. 1993. Endangered and threatened wildlife and plants: determining critical habitat for the Colorado River endangered fishes. Federal Register 58(217):59979-59980.
 

 U.S. Department of Energy. 1993. Annual site environmental report for calendar year 1993. U.S. Department of Energy, Western Area Power Administration, Golden, Colorado. 68 pages.
 

 U.S. Department of Energy. 1993. Non-federal participation in AC Intertie Draft Environmental Impact Statement: appendices. U.S. Department of Energy, Bonneville Power Administration, Portland, Oregon. 474 pages.
 

 U.S. Environmental Protection Agency. 1993. Enforcement accomplishments report, fiscal year 1992. U.S. Environmental Protection Agency, Washington, D.C. 218 pages.
 

 URS Consultants. 1993. State of Colorado hatchery feasibility study for endangered fishes of the Colorado River basin. Volumes I and II. URS Consultants.
 

 Valdez, R.A. 1993. Humpback chub studies in the mainstem Colorado River, Grand Canyon. Proceedings of the Desert Fishes Council 24:71.
 

 Valdez, R.A. 1993. Use of scales to determine emigration of juvenile humpback chub Gila cypha from the Little Colorado River in Grand Canyon, Arizona. Proceedings of the Desert Fishes Council 24:61.
 

 Valdez, R.A. and M. Hugentobler, eds. 1993. Characterization of the life history and ecology of the humpback chub (Gila cypha) in the Grand Canyon. Annual report 1992, contract no. 0-CS-40-09110. Report No. TR-250-06. BIO/WEST, Inc., Logan, Utah. 168 pages + appendices.
 

 Valdez, R.A. and R.D. Williams. 1993. Ichthyofauna of the Colorado and Green Rivers in Canyonlands National Park, Utah. National Park Service Transactions and Proceedings Series 10:2-22.
 

 Valdez, R.A., W.J. Masslich and W. Leibfried. 1993. Present distribution of humpback chub Gila cypha in the mainstem Colorado River, Grand Canyon, Arizona. Proceedings of the Desert Fishes Council 24:66.
 

 Valdez, R.A., W.J. Masslich, L. Crist and W.C. Leibfried. 1993. Field methods for studying the Colorado River fishes in Grand Canyon National Park. Pages 23-36 in P.G. Rowlands, C. van Riper III and M.K. Sogge, eds. Proceedings of the first biennial conference on research in Colorado Plateau National Parks. Transaction and Proceedings Series NPS/NRNAU/NRTP-93/10, U.S. Department of Interior.
 

 Vazquez, E., E. Ramos and A. Alfonso. 1993. Eudistoma roseum, new species (Ascidiacea, Polycitoridae) from the Iberian Atlantic coast. Ophelia 37(2):95-100.
 

 Wasowicz, A. and H. Yard. 1993. Predation by osprey on endangered humpback chub. Great Basin Naturalist 53:314-315.
 

 Wasowicz, T., R.A. Valdez, W.J. Masslich, B.R. Cowdell and W. Leibfried. 1993. Nonlethal stomach pumping technique to recover gut contents of roundtail chub. Proceedings of the Desert Fishes Council 24:40-41.
 

 Wydoski, R., J.H. Williamson and D. Toney. 1993. Coordinated hatchery facility plan. U. S. Fish and Wildlife Service.
 

 American River Management Society. 1994. Rivers without boundaries. Proceedings of the Second Biannual ARMS Symposium on River Planning and Management, American River Management Society.
 

 Beard, D.P. 1994. U.S. Bureau of Reclamation revamps efforts to help fish. Fisheries 19(7):6-7.
 

 Beeny, L. 1994. Natives. Wyoming Wildlife 58(11):20-29.
 

 Beyers, D.W., R.T. Muth and M.S. Farmer. 1994. Experimental evidence of competition between larvae of Colorado squawfish and fathead minnow. Final report. Colorado State University, Fort Collins. 34 pages.
 

 Brookshire, D.S., M. McKee and G. Watts. 1994. Economic analysis of critical habitat designation in the Colorado River basin for the razorback sucker, humpback chub, Colorado squawfish, and bonytail. Final report. U.S. Fish and Wildlife Service, Denver, Colorado.
 

 Carothers, C. and C. Sealing. 1994. Native fish of Colorado, 1994 report for speckled dace, mountain sucker, brook stickleback, flannelmouth sucker, roundtail chub, Colorado squawfish, bluehead sucker, Colorado River cutthroat trout, mottled sculpin, humpback chub, and razorback sucker. Colorado Division of Wildlife. 9 pages + maps.
 

 Clarkson, R.W., T.L. Hoffnagle and A.T. Robinson. 1994. Transport and fate of early life stage native fishes in Grand Canyon, Arizona. Proceedings of the 1994 Annual Meeting of the American Fisheries Society Western Division, Northern Arizona University, Flagstaff.
 

 Cooper, D. and C. Severn. 1994. Wetlands of the Ouray National Wildlife Refuge, Utah: hydrology, water chemistry, vegetation, invertebrate communities, and restoration potential. Final report. U.S. Fish and Wildlife Service, Denver, Colorado. 79 pages.
 

 Cooper, D.J. and C. Severn. 1994. Baseline reports on five upper basin bottomland sites. Final. 403 pages.
 

 Cowdell, B.R. and R.A. Valdez. 1994. Effects of pulsed DC electroshock on adult roundtail chub in the Colorado River in Colorado. North American Journal of Fisheries Management 14:659-660.
 

 Gobalet, K.W. 1994. Additional archaeological evidence for Colorado River fishes in the Salton Basin of southern California. Bulletin of the Southern California Academy of Sciences 93(1):38-41.
 

 Gorman, O.T. 1994. Habitat use by the humpback chub, Gila cypha, in the Little Colorado River and other tributaries of the Colorado River. Final report. U.S. Fish and Wildlife Service, Flagstaff, Arizona.
 

 Gorman, O.T., S.C. Leon and J.M. Seals. 1994. Habitat use by native fishes in the Little Colorado River in the vicinity of the Grand Canyon. Proceedings of the Desert Fishes Council 25:15.
 

 Hamill, J. 1994. Recovery implementation program for endangered fishes in the upper Colorado River basin. Page 299 in American River Management Society, eds. Rivers Without Boundaries: Proceedings of the Second Biannual ARMS Symposium on River Planning and Management, American River Management Society.
 

 Hamill, J.F. 1994. Endangered Colorado River fishes (upper basin). Proceedings of the Desert Fishes Council 25:1-2.
 

 Hendrickson, D.A. and E.B. Brothers. 1994. Utility of otoliths of Grand Canyon humpback chub Gila cypha for age determinations and as indicators of ecological history of individuals. Proceedings of the Desert Fishes Council 25:30-31.
 

 Hoffnagle, T.L., W.R. Persons and G. Doster. 1994. Use of backwater areas by juvenile native fishes in the Colorado River. Proceedings of the Desert Fishes Council 25:33-34.
 

 Houlberg, L.M., G.T. Hawkins, M.S. Salk, G.S. Danford and E.B. Lewis. 1994. Environmental Regulatory Update Table, January--February 1994. Oak Ridge National Laboratory, Tennessee. 106 pages.
 

 Jacobs Engineering Group, Inc. 1994. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Site at Grand Junction, Colorado. Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 186 pages.
 

 Jacobs Engineering Group, Inc. 1994. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Sites near Slick Rock, Colorado. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 238 pages.
 

 Jacobs Engineering Group, Inc. 1994. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Site near Gunnison, Colorado. Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 157 pages.
 

 Jacobs Engineering Group, Inc. 1994. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Site near Grand Junction, Colorado. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 185 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Naturita Uranium Processing Site near Naturita, Colorado: Revision 5. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 159 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Naturita Uranium Processing Site near Naturita, Colorado. Revision 2. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 161 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Slick Rock Uranium Mill Tailings sites Slick Rock, Colorado. Revision 2. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 157 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Naturita Uranium Processing Site near Naturita, Colorado. Revision 4. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 148 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Maybell Uranium Mill Tailings Site near Maybell, Colorado: Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 134 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Maybell Uranium Mill Tailings Site near Maybell, Colorado: Revision 2. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 137 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Slick Rock Uranium Mill Tailings sites, Slick Rock, Colorado. Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 180 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Naturita Uranium Processing Site near Naturita, Colorado. Revision 3. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 144 pages.
 

 Lupher, M.L. and R.W. Clarkson. 1994. Temperature tolerance of humpback chub (Gila cypha) and Colorado squawfish (Ptychocheilus lucius), with a description of culture methods for humpback chub in Glen Canyon Environmental Studies Phase II 1993. Annual report. Appendix 4.1 in Arizona Game and Fish Department. Glen Canyon Environmental Studies Phase II 1992 Annual Report. Prepared for the Bureau of Reclamation, Upper Colorado Region, Glen Canyon Environmental Studies, Flagstaff.
 

 Lupher, M.L. and R.W. Clarkson. 1994. Temperature tolerance of humpback chub (Gila cypha) and Colorado squawfish (Ptychocheilus lucius). Proceedings of the Desert Fishes Council 25:38.
 

 McAda, C.W., J.W. Bates, J.S. Cranney, T.E. Chart, W.R. Elmblad and T.P. Nesler. 1994. Interagency Standardized Monitoring Program. Summary of results, 1993. Final report. U.S. Fish and Wildlife Service, Denver, Colorado. 16 pages + appendices.
 

 McAda, C.W., J.W. Bates, J.S. Cranney, T.E. Chart, W.R. Elmblad and T.P. Nesler. 1994. Interagency Standardized Monitoring Program. Summary of results, 1986-1992. Final report. U.S. Fish and Wildlife Service, Recovery Implementation Program for the Endangered Fishes of the Upper Colorado River Basin, Denver, Colorado.
 

 Repanshek, K. 1994. Fishing for the endangered. Wyoming Wildlife 58(11):34-37.
 

 Seals, J.M., O.T. Gorman and S.C. Leon. 1994. Stream fish habitat studies in the Little Colorado River: a microhabitat approach. Proceedings of the Desert Fishes Council 25:14-15.
 

 Stanford, J.A. 1994. Instream flows to assist the recovery of endangered fishes of the upper Colorado River basin. Biological report 24. National Biological Survey, Polson, Montana. 47 pages.
 

 Stanford, J.A. and P.C. Nelson. 1994. Instream flows to assist the recovery of endangered fishes of the upper Colorado River basin. U.S. Fish and Wildlife Service, Denver, Colorado. 92 pages.
 

 SWCA, Inc. Environmental Consultants. 1994. Feasibility assessment for a multi-species management program, lower Colorado River. Salt Lake City, Arizona Department of Water Resources, Colorado River Board of California, Colorado River Commission of Nevada. 15 pages.
 

 U.S. Bureau of Land Management. 1994. Moxa Arch Natural Gas Field, WY; EIS. Federal Register.
 

 U.S. Department of Energy. 1994. PacifiCorp capacity sale. Draft environmental impact statement. U.S. Department of Energy, Bonneville Power Administration, Portland, Oregon. 416 pages.
 

 U.S. Department of Energy. 1994. Salt Lake City Area Integrated Projects Electric Power Marketing. Draft environmental impact statement: Volume 2, Sections 1-16. U.S. Department of Energy, Western Area Power Administration, Salt Lake City, Utah. 441 pages.
 

 U.S. Department of Energy. 1994. Salt Lake City Area Integrated Projects Electric Power Marketing. Draft environmental impact statement: Volume 1, summary. U.S. Department of Energy, Western Area Power Administration, Salt Lake City, Utah. 31 pages.
 

 U.S. Department of Energy. 1994. Salt Lake City Area Integrated Projects Electric Power Marketing. Draft environmental impact statement: Volume 4, Appendixes B-D. U.S. Department of Energy, Western Area Power Administration, Salt Lake City, Utah. 162 pages.
 

 U.S. Department of Energy. 1994. Office of Technology Development technical reports. A bibliography. U.S. Department of Energy, Office of Scientific and Technical Information, Oak Ridge, Tennessee. 920 pages.
 

 U.S. Department of Energy. 1994. Annual site environmental report for calendar year 1994. U.S. Department of Energy, Golden, Colorado. 68 pages.
 

 U.S. Fish and Wildlife Service. 1994. Habitat use by humpback chub, Gila cypha, in the Little Colorado River and other tributaries of the Colorado River. Glen Canyon Environmental Studies Phase II Annual Report. 129 pages.
 

 U.S. Fish and Wildlife Service. 1994. Endangered and threatened wildlife and plants: determination of critical habitat for four Colorado River endangered fishes; final rule. Federal Register.
 

 U.S. Fish and Wildlife Service. 1994. Availability of revised recovery action plan for the recovery implementation program for endangered fish species in the upper Colorado River basin. Federal Register.
 

 U.S. Fish and Wildlife Service. 1994. Notice of availability of draft modifications to the recovery action plan for the recovery implementation program for the endangered fish species in the Upper Colorado River Basin. Federal Register.
 

 U.S. Fish and Wildlife Service. 1994. Refuge-specific hunting and fishing regulations; final rules. Federal Register.
 

 U.S. Fish and Wildlife Service. 1994. Biological opinion on the operation of Glen Canyon Dam. Final. U.S. Fish and Wildlife Service, Phoenix, Arizona.
 

 U.S. Fish and Wildlife Service. 1994. Determination of critical habitat for four Colorado River fishes. Final rule. Federal Register 59(54):13374-13400.
 

 U.S. Fish and Wildlife Service. 1994. Determination of critical habitat for four Colorado River fishes. Final rule. Federal Register 59(54):13374-13400.
 

 Valdez, R. 1994. Role of fisheries in managing the Colorado River in Grand Canyon - evaluating the operation of Glen Canyon Dam. Page 255 in American River Management Society, eds. Rivers Without Boundaries: Proceedings of the Second Biannual ARMS Symposium on River Planning and Management, American River Management Society.
 

 Wasowicz, A.F. and R.A. Valdez. 1994. Nonlethal technique to recover gut contents of roundtail chub. North American Journal of Fisheries Management 14:656-658.
 

 Williamson, J.H. and R.S. Wydoski. 1994. Genetics management guidelines. U.S. Fish and Wildlife Service, Denver, Colorado. 40 pages.
 

 Willis, C.F., D.L. Ward and A.A. Nigro. 1994. Development of a systemwide program: stepwise implementation of a predation index, predator control fisheries, and evaluation plan in the Columbia River Basin. Annual report 1992: Volume 1. Multi-group effort, first group listes: Oregon Department of Fish and Wildlife, Portland, Oregon. 363 pages.
 

 Wydoski, R.S. 1994. Coordinated hatchery facility plan: need for captive-reared endangered fish and propagation facilities. U.S. Fish and Wildlife Service, Denver, Colorado. 133 pages.
 

 Wydoski, R.S. 1994. Memorandum: Species composition of the fish community above and below the Price-Stub Diversion on the Colorado River. 12 pages.
 

 Young, C. 1994. New plan outlines steps to recover endangered fishes of the Colorado River system. Endangered Species Technical Bulletin 19(1):18-19.
 

 Andrews, E.D., M.B. Bain, K.S. Loins, W.L. Minckley, J.A. Stanford, E. Wohl and R.S. Wydoski. 1995. Highlights of a peer review and roundtable discussion on the relationship of streamflow, geomorphology, and food web studies in recovery of the endangered fishes in the upper Colorado River basin. Colorado River Recovery Program. 15 pages.
 

 Bauch, N.J. and L.E. Apodaca. 1995. Bibliography, indices, and data sources of water-related studies, upper Colorado River basin, Colorado and Utah, 1872-1995. U.S. Geological Survey, National Water-Quality Assessment Program, Denver, Colorado. 282 pages.
 

 Brown, L.I., T.R. Hougaard, K.A. McHugh and R.A. Valdez. 1995. Grand Canyon fisheries integrated database. Draft report. BIO/WEST, Inc., Logan, Utah. 172 pages + appendices.
 

 Chart, T.E. 1995. Humpback chub reproduction and recruitment, Westwater Canyon 1992-1994. Utah Division of Wildlife Resources, Moab.
 

 Colorado River Wildlife Council. 1995. Minutes Colorado River Fish & Wildlife Council, St. Tropez Hotel, Las Vegas, Nevada. Colorado River Wildlife Council.
 

 Converse, Y.K. 1995. Use of geomorphology to predict subadult humpback chub distribution in the Colorado River of Grand Canyon. Proceedings of the Desert Fishes Council 26:56.
 

 Desert Fishes Council. 1995. Proceedings of the Desert Fishes Council Volume XXVI Annual Symposium. Desert Fishes Council, Bishop, California. 149 pages.
 

 Dwyer, F.J., L.C. Sappington, D.R. Buckler and S.B. Jones. 1995. Use of surrogate species in assessing contaminant risk to endangered and threatened fishes. Final report. National Biological Service, Midwest Science Center, Columbia, Missouri. 82 pages.
 

 Goodwin, C.N. 1995. Life history and ecology of the humpback chub (Gila cypha) in the Colorado River, Grand Canyon, Arizona: supplement no. vi: flow routing model: a simple method for estimating stream discharge on the Colorado River below Glen Canyon Dam. U.S. Bureau of Reclamation, Upper Colorado River Region, Salt Lake City, Utah. 4 pages.
 

 Gorman, O.T. 1995. Habitat use by the endangered humpback chub (Gila cypha) in the Little Colorado River, Grand Canyon. Bulletin of the Ecological Society of America 76(Suppl. 3):333.
 

 Gorman, O.T. and J.M. Seals. 1995. Habitat use by the endangered humpback chub (Gila cypha) in the Little Colorado River, Arizona near Grand Canyon. Proceedings of the Desert Fishes Council 26:53.
 

 Hamill, J.F. 1995. Background and overview of the recovery program for endangered fishes in the upper Colorado River basin. Proceedings of the Desert Fishes Council 26:95.
 

 Hlohowskyj, I. and J.W. Hayse. 1995. Potential effects of four Flaming Gorge Dam hydropower operational scenarios on the fishes of the Green River, Utah and Colorado. Argonne National Laboratory, Illionois. 52 pages.
 

 J.F. Sato and Associates, Inc. 1995. Annual site environmental report for calendar year 1995. J.F. Sato and Associates, Inc., Littleton, Colorado. 80 pages.
 

 Jacobs Engineering Group, Inc. 1995. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Site near Naturita, Colorado. Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 200 pages.
 

 Jacobs Engineering Group, Inc. 1995. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Sites near Slick Rock, Colorado. Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 200 pages.
 

 Jacobs Engineering Group, Inc. 1995. Proposed remediation of the Maybell Uranium Mill Processing Site, Maybell, Colorado. Finding of no significant impact. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 22 pages.
 

 Jacobs Engineering Group, Inc. 1995. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Site near Naturita, Colorado. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 100 pages.
 

 Jacobs Engineering Group, Inc. 1995. Environmental assessment of remedial action at the Slick Rock Uranium Mill Tailings sites, Slick Rock, Colorado. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 156 pages.
 

 LaRoe, E.T., G.S. Farris, C.E. Puckett, P.D. Doran, and M.J. Mac, eds. 1995. Our living resources: a report to the nation on the distribution, abundance, and health of U.S. plants, animals, and ecosystems. U.S. Department of the Interior, National Biological Service, Washington, DC. 530 pages.
 

 Lassuy, D.R. 1995. Introduced species as a factor in extinction and endangerment of native fish species. Pages 391-396 in H.L.J. Schramm and R.G. Piper, eds. Uses and Effects of Cultured Fishes in Aquatic Ecosystems: Proceedings of the international Symposium and Workshop held in Albuquerque, New Mexico. American Fisheries Society.
 

 Leibfried, W.C. and R.A. Valdez. 1995. Food habits and electivity indices of the endangered humpback chub, Gila cypha from the Colorado River in Grand Canyon National Park. Proceedings of the Desert Fishes Council 26:122.
 

 Lynch, J.M., D.M. McElroy and M.E. Douglas. 1995. Geometric analysis of morphological variation in Colorado River chub (Gila cypha and G. robusta). Proceedings of the Desert Fishes Council 26:102.
 

 Marsh, P.C. 1995. Biological assessment of the impact on federally listed fishes of a water line and intake crib installation at Telephone Cove, Lake Mohave, Arizona (McAlister Intake Facility, Great Life Subdivision). Arizona State University, Tempe. 23 pages.
 

 Marsh, P.C. and M.E. Douglas. 1995. Humpback chub as food of nonnative fishes in the Little Colorado River. Proceedings of the Desert Fishes Council 26:55.
 

 McAda, C.W., W.R. Elmblad, T.E. Chart, K.S. Day and M.A. Trammell. 1995. Interagency Standardized Monitoring Program. Summary of results, 1994. Final report. U.S. Fish and Wildlife Service, Denver, Colorado. 17 pages + appendices.
 

 McElroy, D.M. and M.E. Douglas. 1995. Patterns of morphological variation among endangered populations of Gila robusta and Gila cypha (Teleoseti: Cyprinidae) in the upper Colorado River basin. Copeia 3:636-649.
 

 Minckley, W.L. 1995. Translocation as a tool for conserving imperiled fishes: Experiences in western United States. Biological Conservation 72(2):297-309.
 

 Modde, T. and G. Smith. 1995. Flow recommendations for endangered fishes in the Yampa River. U.S. Fish and Wildlife Service, Denver, Colorado. 45 pages.
 

 Moyle, P.B. 1995. Fish: An Enthusiast's Guide. University of California Press, Berkeley.
 

 Pfeifer, F.K., C.W. McAda, B.D. Burdick, R.M. Anderson, T.E. Chart and M.A. Trammell. 1995. Colorado River Recovery Program activities related to the Gunnison River and operation of the Aspinall Unit of the Colorado River Storage Project. Proceedings of the Desert Fishes Council 26:96.
 

 Ryel, R.J. and R.A. Valdez. 1995. Life history and ecology of the humpback chub (Gila cypha) in the Colorado River, Grand Canyon, Arizona: supplement supplement no. v.: population model. 
 

 Ryel, R.J. and R.A. Valdez. 1995. Development of a population model for humpback chub (Gila cypha) in Grand Canyon, Phase I : a feasibility evaluation. BIO/WEST, Inc., Logan, Utah. 43 pages + tables.
 

 Starnes, W.C. 1995. Colorado River Basin fishes. Pages 149-152 in E.T. LaRoe, G.S. Farris, C.E. Puckett, D. Doran and M.J. Mac, eds. Our Living Resources: A Report to the Nation on the Distribution, Abundance, and Health of U.S. Plants, Animals, and Ecosystems.
 

 Stempel, M. and R.S. Wydoski. 1995. Guidelines for disposition of captive-reared endangered fish. Draft environmental assessment. U.S. Fish and Wildlife Service. 14 pages.
 

 Tiersch, T.R.  1995. Cryopreservation of fish sperm: laboratory, hatchery and field studies of twenty species. Proceedings of the International Symposium on the Reproductive Physiology of Fish (5):147.
 

 U.S. Bureau of Reclamation. 1995. Environmental assessment Gunnison River activities, passageway around the Redlands Diversion Dam and interim agreement to provide water for endangered fish. Final. U.S. Bureau of Reclamation and U.S. Fish and Wildlife Service, Grand Junction, Colorado. 58 + pages.
 

 U.S. Bureau of Reclamation. 1995. Operation of Glen Canyon Dam. Final environmental impact statement summary. 
 

 U.S. Department of Energy. 1995. Proposed remedial action at two uranium processing sites near Slick Rock, Colorado. Finding of no significant impact. Federal Register 60(36):10069-10072.
 

 U.S. Department of Energy. 1995. Environmental assessment for the Uranium Lease Management Program. Final. U.S. Department of Energy, Grand Junction, Colorado. 105 pages.
 

 U.S. Environmental Protection Agency. 1995. National pollutant discharge elimination system storm water multi-sector general permit for industrial activities; notice. Final. Federal Register 60(189):50804-51319.
 

 U.S. Fish and Wildlife Service. 1995. San Juan River Basin Recovery Implementation Program. 
 

 U.S. Fish and Wildlife. 1995. Federally listed endangered and threatened species footage roll (Betacam SP). U.S. Fish and Wildlife Service, Washington, D.C.
 

 Valdez, R.A. 1995. Synthesis of winter investigation of endangered fish in the Green River below Flaming Gorge Dam. Study #18-11. BIO/WEST, Inc., Logan, Utah.
 

 Valdez, R.A. and R.J. Ryel. 1995. Life history and ecology of the humpback chub (Gila cypha) in the Colorado River, Grand Canyon, Arizona. Report # TR-250-08. BIO/WEST, Inc., Logan, Utah.
 

 Wasowicz, A. and R.A. Valdez. 1995. Historic and present distribution and abundance of humpback chub in Grand Canyon, Arizona. Proceedings of the Desert Fishes Council 26:57.
 

 Arizona Game and Fish Department. 1996. Ecology of Grand Canyon backwaters. Final report to U.S. Bureau of Reclamation, Upper Colorado Region. Arizona Game and Fish Department, Phoenix.
 

 Arizona Game and Fish Department. 1996. Effects of an experimental flood on the aquatic biota and their habitats in the Colorado River, Grand Canyon, Arizona. Final report. Arizona Game and Fish Department, Phoenix. 94 pages.
 

 Arizona Game and Fish Department. 1996. Wildlife of special concern in Arizona. Draft. Arizona Game and Fish Department, Phoenix, Arizona. 32 pages.
 

 Arizona Game and Fish Department. 1996. Wildlife of special concern in Arizona. Draft. Arizona Game and Fish Department, Phoenix, Arizona. 32 pages.
 

 Babbitt, B. 1996. Establishing roots in our landscapes of complexity: remarks by Interior Secretary Bruce Babbitt. 
 

 Brookshire, D., M. McKee and S. Stewart. 1996. Four corners regional focus on the economic impact of critical habitat designation for the razorback sucker, humpback chub, Colorado squawfish, and bonytail. University of New Mexico, Albuquerque, New Mexico. 83 pages.
 

 Committee to Review the Glen Canyon Environmental Studies. 1996. Organisms and biological processes. Pages 84-117 in River Resource Management in the Grand Canyon. National Academy Press, Washington, D.C.
 

 Converse, Y.K. 1996. Geomorphic assessment of subadult humpback chub habitat in the Colorado River through Grand Canyon. Master's thesis, Utah State University, Logan.
 

 Desert Fishes Council. 1996. Proceedings of the Desert Fishes Council Volume XXVII Annual Symposium. Desert Fishes Council, Bishop, California. 129 pages.
 

 Douglas, M.E. and P.C. Marsh. 1996. Population estimates/population movements of Gila cypha, an Grand Canyon region of Arizona. Copeia 1:15-28.
 

 Douglas, M.E. and P.C. Marsh. 1996. Catostomidae of the Grand Canyon region of Arizona: population estimates, movements and survivability. Section 3 in M.E. Douglas and P.C. Marsh, eds. Ecology and Conservation Biology of Humpback Chub (Gila cypha) in the Little Colorado River. Bureau of Reclamation, Salt Lake City, Utah.
 

 Douglas, M.E. and P.C. Marsh. 1996. Endangered humpback chub (Gila cypha) as prey of introduced fishes in the Little Colorado River, Arizona. Section 2 in M.E. Douglas and P.C. Marsh, eds. Ecology and Conservation Biology of Humpback Chub (Gila cypha) in the Little Colorado River. Bureau of Reclamation, Salt Lake City, Utah.
 

 Douglas, M.E. and P.C. Marsh. 1996. Survivability of an endangered species (Gila cypha) within the Grand Canyon region of Arizona. Section 4 in M.E. Douglas and P.C. Marsh, eds. Ecology and Conservation Biology of Humpback Chub (Gila cypha) in the Little Colorado River. Bureau of Reclamation, Salt Lake City, Utah.
 

 Douglas, M.E. and P.C. Marsh. 1996. Ecology and conservation biology of humpback chub (Gila cypha) in the Little Colorado River. Final report. U.S. Bureau of Reclamation, Salt Lake City, Utah, and Glen Canyon Environmental Studies, Flagstaff, Arizona. 133 pages.
 

 Douglas, M.E. and P.C. Marsh. 1996. Seasonal and yearly population estimates for Catostomus latipinnis and Pantosteus discobolus (Teleostei, Catostomidae) in the Grand Canyon region of Arizona. Proceedings of the Desert Fishes Council 27:33.
 

 Dresser, Jr., T.J. 1996. Diet of adult humpback chub. Pages 59-65. In The effects of an experimental flood on the aquatic biota and their habitats in the Colorado River, Grand Canyon, Arizona. Arizona Game and Fish Department, Phoenix.
 

 Grand Canyon Trust. 1996. Colorado River Workshop: Issues, Iideas, and Directions. Proceedings report. Grand Canyon Trust and U.S. Bureau of Reclamation. 256 pages.
 

 Hawkins, J.A., E.J. Wick and D.E. Jennings. 1996. Icthyofauna of the Little Snake River, Colorado 1994. Final report. U.S. Fish and Wildlife Recovery Implementation Program, Denver, Colorado. 44 pages.
 

 Hoffnagle, T.L. 1996. Changes in water quality parameters and fish usage of backwaters during fluctuating vs. short-term steady flows in the Colorado River, Grand Canyon. Arizona Game and Fish Department, Flagstaff.
 

 Jacobs Engineering Group, Inc. 1996. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Site, near Gunnison, Colorado. Revision 2. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 156 pages.
 

 Jacobs Engineering Group, Inc. 1996. Biological assessment of remedial action at the abandoned Uranium Mill Tailings Site near Naturita, Colorado. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 53 pages.
 

 Kidd, G.T. 1996. Endangered fish of the upper Colorado River, observations from 1970 through 1995. U.S. Bureau of Reclamation (originally published as Appendix 3 to "Replacement of the Plateau Creek Pipeline Biological Assessment"). 12 pages.
 

 Lentsch, L.D., M. Trammell and T. Chart. 1996. Aspinall unit studies: flow effects on humpback chub population in Westwater Canyon. Project 46. FY 96 Annual report. U.S. Fish and Wildlife Service, Denver, Colorado.
 

 Lentsch, L.D., R.T. Muth, P.D. Thompson, B.G. Hoskins and T.A. Crowl. 1996. Options for selective control of nonnative fishes in the upper Colorado River basin. Utah Division of Wildlife Resources, Salt Lake City.
 

 Maddux, H.R. 1996. Environmental assessment for procedures for stocking of nonnative fish species in the upper Colorado River basin. Draft. U.S. Fish and Wildlife Service, Grand Junction, Colorado. 39 pages + appendices.
 

 McAda, C.W., W.R. Elmblad, T.E. Chart, K.S. Day and M.A. Trammell. 1996. Interagency Standardized Monitoring Program. Summary of results, 1995. Annual report. U.S. Fish and Wildlife Service, Endangered Fish Recovery Program, Denver, Colorado. 16 + pages.
 

 Minckley, C.O. 1996. Observations on the biology of the humpback chub in the Colorado River Basin 1908-1990. Doctoral dissertation, Northern Arizona University, Flagstaff.
 

 Minckley, C.O. 1996. Observations on the biology of the humpback chub in the Colorado River basin 1908-1990. Glen Canyon environmental studies contract No. 1FC-40-10500. Final report. U.S. Fish and Wildlife Service, Arizona Fishery Resources Office, Parker, Arizona.
 

 Robinson, A.T., D.M. Kubly, R.W. Clarkson and E.D Creef. 1996. Factors limiting the distributions of native fishes in the Little Colorado River, Grand Canyon, Arizona. Southwestern Naturalist 41(4):378-387.
 

 Robinson, A.T., R.W. Clarkson and R.E. Forrest. 1996. Spatio-temporal distribution, habitat use, and drift of early life stage native fishes in the Little Colorado River, Grand Canyon, Arizona, 1991-1994. Final report. Cooperative agreement no. 9-FC-40-07940. Arizona Game and Fish Department, Phoenix.
 

 Rust Geotech, Inc. 1996. U.S. Department of Energy Grand Junction Projects Office site environmental report for calendar year 1995. Rust Geotech, Inc., Grand Junction, Colorado. 146 pages.
 

 Snyder, D.E. 1996. Preserved larval and small-fish collections of the upper Colorado River basin: maintenance and cataloging of a valuable historical database. Final report, Project No. 20. Colorado State University Larval Fish Laboratory Recovery Program. 28 pages.
 

 Strength, D.A. and R.A. Parnell. 1996. Rates of travertine deposition in the Little Colorado River as it relates to future habitat conditions for the humpback chub. Proceedings of the Arizona Hydrological Society Annual Symposium 9:57-59.
 

 Tyus, H. 1996. Aquatic ecosystem recovery plan for mainstream rivers of the Colorado River basin. University of Colorado, Boulder. 96 pages.
 

 Tyus, H.M. and J.F. Saunders, III. 1996. Multispecies recovery plan for four endangered fishes of the mainstream Colorado River. Draft plan. University of Colorado at Boulder, Center for Limnology. Pages I-x, 1-96 + appendices.
 

 Tyus, H.M. and J.F. Saunders, III. 1996. Nonnative fishes in the upper Colorado River basin and a strategic plan for their control. Final report. University of Colorado at Boulder, Center for Limnology. Pages I-viii, 1-84 + appedix.
 

 U.S. Bureau of Reclamation. 1996. Silt project, water operations study. Final appraisal report. U.S. Bureau of Reclamation. 53 pages.
 

 U.S. Bureau of Reclamation. 1996. Description and assessment of operations, maintenance, and sensitive species of the lower Colorado River. U.S. Bureau of Reclamation, Lower Colorado Region, Boulder City, Nevada.
 

 U.S. Department of Energy. 1996. Environmental assessment of facility operations at the U.S. Department of Energy Grand Junction Projects Office, Grand Junction, Colorado. U.S. Department of Energy, Grand Junction, Colorado. 102 pages.
 

 U.S. Department of Energy. 1996. Annual site environmental report for calendar year 1989. U.S. Department of Energy, Western Area Power Administration, Golden, Colorado. 48 pages.
 

 U.S. Department of Energy. 1996. Marys Lake 69/115-kV transmission line upgrade and substation expansion projects. U.S. Department of Energy, Western Area Power Administration, Loveland, Colorado and Platte River Power Authority, Fort Collins, Colorado. 212 pages.
 

 U.S. Fish and Wildlife Service. 1996. Endangered and threatened species permit applications. Federal Register 61(249):68049-68050.
 

 U.S. Fish and Wildlife Service. 1996. Report to Congress on the recovery program for threatened and endangered species. U.S. Fish and Wildlife Service. 26 pages.
 

 U.S. Fish and Wildlife Service. 1996. Report to Congress on the recovery program for threatened and endangered species. U.S. Fish and Wildlife Service. 26 pages.
 

 U.S. Fish and Wildlife Service. 1996. Endangered and threatened species permit applications. Federal Register 61(206):55012-55013.
 

 U.S. Fish and Wildlife Service. 1996. Procedures for stocking nonnative fish species in the upper Colorado River basin. U.S. Fish and Wildlife Service, Denver, Colorado. 13 pages.
 

 Valdez, R.A. and B.R. Cowdell. 1996. Effect of Glen Canyon Dam beach/habitat-building flows on fish assemblages in Glen and Grand Canyons, Arizona. BIO/WEST, Inc., Logan, Utah.
 

 Vinson, M. 1996. Sampling strategy for assessing aquatic invertebrate communities associated with endangered fish populations in the upper Colorado River basin. Fisheries and Wildlife Department. 27 pages.
 

 Western Area Power Administration. 1996. Record of decision for the Salt Lake City area integrated projects electric power marketing program. Federal Register 61(213):56534-56539.
 

 Wigington, R. and D. Pontius. 1996. Toward range-wide integration of recovery implementation programs for the endangered fishes of the Colorado River. Pages 43-75 in The Colorado River Workshop: Issues, Ideas, and Directions. Grand Canyon Trust, Flagstaff, Arizona.
 

 Wydoski, R.S. 1996. Annual propagation operation plan, 1996. U.S. Fish and Wildlife Service. 20 pages.
 

 Wydoski, R.S. and E.D. Wick. 1996. Ecological value of flooded bottomland habitats to endangered fishes in the upper Colorado River basin. Upper Colorado River Basin Recovery Program. 33 pages.
 

 Barlow, G.W. and P. Siri. 1997. Does sexual selection account for the conspicuous head dimorphism in the Midas cichlid? Animal Behaviour 53(3):573-584 .
 

 Brouder, M.J. and T.L. Hoffnagle. 1997. Distribution and prevalence of the Asian fish tapeworm, Bothriocephalus acheilognathi, in the Colorado River and tributaries, Grand Canyon, Arizona, including two new host records. Journal of the Helminthological Society of Washington 64(2):219-226.
 

 Chart, T.E. and L. Lentsch. 1997. Reproduction and recruitment of Gila spp. and Colorado squawfish (Ptychocheilus lucius) in the middle Green River 1992-1996. Part B: Fish community monitoring and Colorado squawfish spawning investigations. Utah Division of Wildlife Resources. 19 pages + appendix.
 

 Chart, T.E. and L.D. Lentsch. 1997. Flow effects on humpback chub (Gila cypha) populations in Westwater Canyon. Utah Division of Wildlife Resources, Salt Lake City. 63 pages.
 

 Clarkson, R.W., A.T. Robinson and T.L. Hoffnagle. 1997. Asian tapeworm (Bothriocephalus acheilognathi) in native fishes from the Little Colorado River, Grand Canyon, Arizona. Great Basin Naturalist 57(1):66-69.
 

 Crowl, T.A. and N.W. Bouwes. 1997. Modeling population dynamics of Colorado squawfish, razorback sucker, and humpback chub for management objective development. Utah State University, Aquatic Ecology. 62 pages.
 

 Dall, D., C. Elliott and D. Peters. 1997. System for mapping riparian areas in the Western United States. U.S. Fish and Wildlife Service, National Wetlands Inventories, Lakewood, Colorado. 15 pages.
 

 Dames and Moore, Inc. 1997. McCullough to Liberty fiber optics project. Dames and Moore, Los Angeles, California. 170 pages.
 

 FLO Engineering. 1997. Ouray National Wildlife Refuge bottomland sites elevation/area/capacity tables. Final report. FLO Engineering, Inc., Breckenridge, Colorado.
 

 Hoffnagle, T.L, W.R. Persons, M.J. Brouder, T.J. Dresser, Jr., and D.W. Speas. 1997. Effects of the 1996 experimental beach/habitat-building floord in the Colorado River, Grand Canyon, on fishes, invertebrates, and their backwater habitats. Pages 56-58. In Glen Canyon Dam Beach/Habitat-Building Test Flow: Abstracts and Executive Summaries.
 

 Laubhan, M. 1997. Report on Green River refuges. Ouray National Wildlife Refuge, Vernal, Utah. 18 pages.
 

 Marsh, P.C. and M.E. Douglas. 1997. Predation by introduced fishes on endangered humpback chub and other native species in the Little Colorado River, Arizona. Transactions of the American Fisheries Society (Bethesda) 126(2):343-346.
 

 Marsh, P.C. and M.E. Douglas. 1997. Predation on endangered humpback chub and other native species by introduced fishes in the Little Colorado River, Arizona. Transactions of the American Fisheries Society 126(2):343-346.
 

 Martinez, P.J. 1997. Development and application of procedures for stocking nonnative fish speacies in the upper Colorado River basin. Colorado Division of Wildlife, Grand Junction.
 

 Martinez, P.J. 1997. West slope warmwater fisheries. 
 

 McAda, C.W. 1997. Mechanical removal of northern pike from the Gunnison River 1995-1996. Final report, project number 58. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction.
 

 McAda, C.W., T.E. Chart, M.A. Trammell, K.S. Day, P.A. Cavalli and W.R. Elmblad. 1997. Interagency Standardized Monitoring Program. Summary of results, 1996. Annual report. U.S. Fish and Wildlife Service, Endangered Fish Recovery Program, Denver, Colorado. 24 pages.
 

 McElroy, D.M, J.A. Shoemaker and M.E. Douglas. 1997. Discriminating Gila robusta and Gila cypha: risk assessment and the Endangered Species Act. Ecological Applications 7(3):958-967.
 

 McIvor, D.E. 1997. Bibliography for seven Colorado River fishes. Smithfield, Utah.
 

 Minckley, W.L., J.E. Deacon, P.C. Marsh, W.J. Matthews and P.B. Moyle. 1997. Sustainability of western native fish resources. Pages 63-76 in W.L. Minckley, ed. Aquatic Ecosystems Symposium. A Report to the Western Water Policy Review Advisory Commission. Arizona State University, Tempe.
 

 No author. 1997. Biological and conference opinion on lower Colorado River operations and maintenance, Lake Mead to Southerly International Boundary. U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 196 pages.
 

 Pontius, D. and I. Swca. 1997. Colorado River Basin study. SWCA, Inc., Tucson, Arizona. 132 + pages.
 

 Prats, E.E. and R.A. Valdez. 1997. Use of scales for determination of subadult humpback chub size at transition into the Colorado River, Grand Canyon, Arizona. Southwestern Naturalist.
 

 Ruppert, J.B. and R.T. Muth. 1997. Effects of electrofishing fields on captive juveniles of two endangered cyprinids. North American Journal of Fisheries Management 17(2):314-320.
 

 Simons, A.M. and R.L. Mayden.  1997. Phylogenetic relationships of the creek chubs and the spine-fins: an enigmatic group of the North American cyprinid fishes (Actinopterygii: Cyprinidae). Cladistics (Westport) 13(3):187-205.
 

 Strength, D.A. 1997. Travertine deposition in the Little Colorado River, Arizona and habitat for the endangered humpback chub. Master's thesis. Northern Arizona University, Flagstaff. 99 pages.
 

 U.S. Fish and Wildlife Service. 1997. Endangered and threatened species permit applications. Federal Register 62(224):62068-62069.
 

 Valdez, R. 1997. Effects of an experimental flood on fish and backwaters in the Colorado River, Grand Canyon, Arizona. Pages 60-62 in Grand Canyon Monitoring and Research Center. Glen Canyon Dam beach/habitat-building flow: abstracts and executive summaries, April 1997. Grand Canyon Monitoring and Research Center, Flagstaff.
 

 Valdez, R.A. and R.J. Ryel. 1997. Life history and ecology of the humpback chub in the Colorado River in Grand Canyon, Arizona. Final report. Contract no. 0-CS-40-09110. Report no. TR-250-08. BIO/WEST, Inc., Logan, Utah.
 

 Vaselaar, R.T. 1997. Opening the flood gates: the 1996 Glen Canyon Dam experiment. Restoration and Management Notes 15(2):119-125.
 

 Wastren - Grand Junction, Inc. 1997. Site environmental report for calendar year 1996. Wastren - Grand Junction, Inc., Grand Junction, Colorado. 156 pages.
 

 Watts, G., W. Noonan, H. Maddux and D.S. Brookshire. 1997. Endangered Species Act and critical habitat designation: an integrated biological and economic approach. Colorado State University Larval Fish Laboratory, Fort Collins, and Colorado Division of Wildlife Report. 41 pages.
 

 Childs, M.R., R.W. Clarkson and A.T. Robinson. 1998. Resource use by larval and early juvenile native fishes in the Little Colorado River, Grand Canyon, Arizona. Transactions of the American Fisheries Society 127(4):620-629.
 

 Converse, Y.K., C.P. Hawkins and R.A. Valdez. 1998. Habitat relationships of subadult humpback chub in the Colorado River through Grand Canyon: spatial variability and implications of flow regulation. Regulated Rivers Research and Management 14(3):267-284.
 

 Douglas, M.E., W.L. Minckley and H.M Tyus. 1998. Multivariate discrimination of Colorado plateau Gila spp: the "art of seeing well" revisited. Transactions of the American Fisheries Society 127(2):163-173.
 

 Federal Interagency Stream Restoration Working Group. 1998. Stream corridor restoration: principles, processes, and practices. Federal Interagency Stream Restoration Working Group. 631 pages.
 

 Flug, M. 1998. Ecosystem resource considerations in reservoir management: water resources update. Pages 43-56 in Universities Council on Water Resources, v. Summer 1997.
 

 Lentsch, L.D., C.A. Toline, T.A. Crowl and Y. Converse. 1998. Endangered fish interim management objectives for the upper Colorado River basin recovery and implementation program. Final report. Utah Division of Wildlife Resources, Salt Lake City. 40 pages.
 

 Mac, M. J., P.A. Opler, C.E.P. Haecker and P.D. Doran, eds. 1998. Status and trends of the nation's biological resources - southwest. U.S. Geological Survey, Biological Resources Division. 986 pages.
 

 McAda, C.W., W.R. Elmblad, K.S. Day, M.A. Trammell and T.E. Chart. 1998. Interagency Standardized Monitoring Program. Summary of results, 1997. Annual report. U.S. Fish and Wildlife Service, Endangered Fish Recovery Program, Denver, Colorado.
 

 Pacey, C.A. and P.C. Marsh. 1998. Resource use by native and nonnative fishes of the lower Colorado River: literature review, summary, and assessment of relative roles of biotic and abiotic factors in management of an imperiled indigenous ichthyofauna. Final report. U.S. Bureau of Reclamation, Boulder City, Nevada. 1086 pages.
 

 Pfeifer, F.K., C.W. McAda, D. Osmundson, T. Modde and B. Haines. 1998. Interagency Standardized Monitoring Program. FY98 Annual project report number 22-A. Annual report. U.S. Fish and Wildlife Service, Grand Junction, Colorado.
 

 Robinson, A.T., R.W. Clarkson and R.E. Forrest. 1998. Dispersal of larval fishes in a regulated river tributary. Transactions of the American Fisheries Society 127(5):772-786.
 

 Schmitt, C.J. 1998. Environmental contaminants. Pages 131-165 in M.J. Mac, P.A. Opler, C.E. Puckett Haecker and P.D Doran, eds. Status and Trends of the Nation's Biological Resources. U.S. Department of the Interior, U.S. Geological Survey, Reston, Virginia.
 

 Stevens, L.E. and K. Rowell. 1998. State of natural and cultural resources in the Colorado River ecosystem. 
 

 Tyus, H.M. 1998. Early records of the endangered fish Gila cypha Miller from the Yampa River of Colorado with notes on its decline. Copeia 1:190-193.
 

 Tyus, H.M. and J.F. Saunders, III. 1998. An evaluation of recovery needs for endangered fishes in the upper Colorado River, with recommendations for future recovery actions. Final report (Contract 1196-12-1591B). University of Colorado at Boulder, Center for Limnology, Cooperative Institute for Research in Environmental Sciences. 89 pages.
 

 U.S. Department of the Interior. 1998. Management and control of nonnative fish species in floodplain ponds along the upper Colorado and Gunnison Rivers, Denver, Colorado. Finding of no significant impact. U.S. Fish and Wildlife Service. 75 pages.
 

 U.S. Department of the Interior. 1998. Environmental assessment for acquisition and enhancement of floodplain habitats along the Colorado, Green and Gunnison Rivers as part of the Recovery Program for Endangered Colorado River Fishes. Final. U.S. Bureau of Reclamation, Salt Lake City and U.S. Fish and Wildlife Service, Denver, Colorado.
 

 U.S. Environmental Protection Agency. 1998. Modification of the National Pollutant Discharge Elimination System (NPDES) storm water multi-sector general permit for industrial activities termination of the EPA NPDES storm water baseline industrial general permit notice. Final. Federal Register 63(189):52430-52577.
 

 U.S. Environmental Protection Agency. 1998. Reissuance of NPDES general permits for storm water discharge from construction activities; notice (addenda). Federal Register 63(31):7957-8014.
 

 U.S. Environmental Protection Agency. 1998. Climate change and Arizona. EPA 236-F_98-0007C. U.S. Environmental Protection Agency. 4 pages.
 

 U.S. Environmental Protection Agency. 1998. Catalog of EPA environmental education materials and resources. U.S. Environmental Protection Agency, Office of Communications, Education, and Media Relations. 62 pages.
 

 U.S. Fish and Wildlife Service. 1998. Endangered and threatened species permit applications. Federal Register 63(77):19933-19936.
 

 U.S. Fish and Wildlife Service. 1998. Availability of draft management objectives for the endangered fishes of the upper Colorado River for review and comment. Federal Register 63(86):24821.
 

 U.S. Fish and Wildlife Service. 1998. Service trains tribes in enforcement. 
 

 Valdez, R.A. and S.W. Carothers. 1998. Aquatic ecosystem of the Colorado River in Grand Canyon. Final report. SWCA, Inc., Flagstaff, Arizona.
 

 Van Steeter, M.M. and J. Pitlick. 1998. Geomorphology and endangered fish habitats of the upper Colorado River, 1. Historic changes in streamflow, sediment load, and channel morphology. Water Resources Research 34: 287-302.
 

 Barbour, M.T., J. Gerritsen, B.D. Snyder and J.B. Stribling. 1999. Rapid bioassessment protocols for use in wadeable streams and rivers. Periphyton, benthic macroinvertebrates, and fish. Second edition. U.S. Environmental Protection Agency, Office of Water, Washington, D.C. 344 pages.
 

 Berrens, R.P., M. McKee and M.C. Farmer. 1999. Incorporating distributional considerations in the safe minimum standard approach: endangered species and local impacts . Ecological Economics (30)3:461-474.
 

 Cadrin, S.X. and K.D. Friedland. 1999. Utility of image processing techniques for morphometric analysis and stock identification. Fisheries Research 43(1-3):129-139.
 

 Chart, T.E. and L. Lentsch. 1999. Flow effects on humpback chub (Gila cypha) in Westwater Canyon. Utah Divison of Wildlife Resources, Moab Native Fishes Field Office, Salt Lake City. 74 pages.
 

 Chart, T.E. and L.D. Lentsch. 1999. Reproduction and recruitment of Gila spp. and Colorado pikeminnow (Ptychocheilus lucius) in the middle Green River 1992–1996. Final report. Project number 39. Utah Division of Wildlife Resources, Moab and Salt Lake City.
 

 Czapla, T.E. 1999. Genetics management plan (revised). Denver, Colorado. 48 pages.
 

 Day, K.S., K.D. Christopherson and C. Crosby. 1999. Backwater use by young-of-year chub (Gila spp.) and Colorado pikeminnow in Desolation and Gray canyons of the Green River, Utah. Report B in Flaming Gorge Studies: reproduction and recruitment of Gila spp. and Colorado pikeminnow (Ptychocheilus lucius) in Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.
 

 Desert Fishes Council. 1999. Proceedings of the Desert Fishes Council Volume XXIX Annual Symposium. Desert Fishes Council, Bishop, California. 78 pages.
 

 Desert Fishes Council. 1999. Proceedings of the Desert Fishes Council Volume XXX Annual Symposium. Desert Fishes Council, Bishop, California. 71 pages.
 

 Dwyer, F.J., D.K. Hardesty, C.E. Henke, C.G. Ingersol, D.W. Whites, D.R. Mount and C.M. Bridges. 1999. Assessing contaminant sensitivity of endangered and threatened species: toxicant classes. U.S. Geological Survey, Biological Resources Division, Columbia, Missouri. 18 pages.
 

 Dwyer, F.J., D.K. Hardesty, C.E. Henke, C.G. Ingersol, D.W. Whites, D.R. Mount and C.M. Bridges. 1999. Assessing contaminant sensitivity of endangered and threatened species: effluent toxicity tests. U.S. Geological Survey, Biological Resources Division, Columbia, Missouri. 26 pages.
 

 Fairchild, J.F., A.L. Allert, J. Mizzi, R. Reisenburg and B. Waddell. 1999. Determination of a safe level of ammonia that is protective of juvenile Colorado pikeminnow in the upper Colorado River, Utah. 1998 Quick Response Program, final report. 
 

 Fuller, P.L., L.G. Nico and J.D. Williams. 1999. Nonindigenous fishes introduced into inland waters of the United States. Special Publication 27. American Fisheries Society, Bethesda, Maryland. 613 pages.
 

 Gorman, O.T. and D.M. Stone. 1999. Ecology of spawning humpback chub, Gila cypha, in the Little Colorado River near Grand Canyon, Arizona. Environmental Biology of Fishes (Dordrecht) 55:1-2:115-133.
 

 Hoffnagle, T.L., R.A. Valdez and D.W. Speas. 1999. Fish abundance, distribution, and habitat use. Pages 273-287 in R.H. Webb, J.C. Schmidt, G.R. Marzolf and R.A. Valdez, eds. The Controlled Flood in Grand Canyon. Geophysical Monograph 110, The American Geophysical Union, Washington, D.C.
 

 Johnston, C.E. 1999. Relationship of spawning mode to conservation of North American minnows (Cyprinidae). Environmental Biology of Fishes (Dordrecht) 55(1-2):21-30.
 

 Kimball, J.F. 1999. Flow effects on humpback chub (Gila cypha) in Westwater Canyon. Utah Division of Wildlife Resources, Salt Lake City. 74 pages.
 

 Kohler, C. and W. Hubert, eds. 1999. Inland Fisheries Management in North America. American Fisheries Society, Bethesda, Maryland. 718 pages.
 

 Marsh, P.C., C.A. Pacey and W.L. Minckley. 1999. Resource use attributes of Colorado River fishes and implication for management of native and non-native species. Proceedings of the Desert Fishes Council 30:24.
 

 Mueller, G. C. Walters, P. Holden, P. Walker, J. Landye and B. Johnson. 1999. Scientific panel review of the Glen Canyon Dam modifications to control downstream temperatures, plan and draft environmental assessment (EA). 
 

 Pitlick, J., M. Van Steeter, R. Cress, B. Barkett and M. Franseen. 1999. Geomorphology and hydrology of the Colorado and Gunnison Rivers and implications for habitats used by endangered fishes. U.S. Fish and Wildlife Service, Recovery Implementation Program, Grand Junction, Colorado. 64 pages.
 

 Simons, A.M. and R.L. Mayden.  1999. Phylogenetic relationships on North America cyprinids and assessment of homology of the open posterior myodome. Copeia (Gainesville) 1:13-21.
 

 Stone, D.M.  1999. Ecology of humpback chub (Gila cypha) in the Little Colorado River, near Grand Canyon, Arizona. Master's thesis, Northern Arizona University, Flagstaff.
 

 U.S. Bureau of Reclamation. 1999. Glen Canyon Dam modification to control downstream temperatures plan and draft environmental assessment. 
 

 U.S. Bureau of Reclamation. 1999. Scientific panel review of the Glen Canyon Dam modification to control downstream temperatures plan and draft environmental assessment processes. 
 

 U.S. Department of Agriculture. 1999. Regional Forester’s Sensitive Species List. U.S. Department of Agriculture Forest Service Region 3.
 

 U.S. Fish and Wildlife Service. 1999. Endangered and threatened species permit applications. Federal Register 64(43):10714-10716.
 

 U.S. Fish and Wildlife Service. 1999. Southwestern tribes preserve tradition by preserving nature. 
 

 Upper Colorado River Basin Recovery Implementation Program. 1999. Annual facilities operation plan, 19 February, 1999. Final. Upper Colorado River Basin Recovery Implementation Program. 6 pages.
 

 Upper Colorado River Basin Recovery Implementation Program. 1999. Programmatic biological opinion for Bureau of Reclamation's operations and depletions, other depletions, and funding and implementation of recovery program actions in the upper Colorado River above the confluence with the Gunnison River. Final. 
 

 Upper Colorado River Basin Recovery Implementation Program. 1999. Memorandum: 15-Mile Reach biological opinion. Final programmatic biological opinion for Bureau of Reclamation’s operations and depletions, other depletions, and funding and implementation of recovery program actions in the upper Colorado River above the G 
 

 Upper Colorado River Basin Recovery Implementation Program. 1999. Endangered fish population status assessment. 15-Mile Reach biological opinion. Appendix D. 
 

 Valdez, R.A. and R.J. Ryel. 1999. Developing recovery goals for the four endangered Colorado River fishes: scope of work and cost estimate. SWCA, Inc., Flagstaff, Arizona and Logan, Utah, and Rydel and Associates. 14 pages.
 

 Valdez, R.A. and T.L. Hoffnagle. 1999. Movement, habitat use, and diet of adult humpback chub. Pages 297-307 in R.H. Webb, J.C. Schmidt, G.R. Marzolf and R.A. Valdez, eds. The Controlled Flood in Grand Canyon. Geophysical Monograph 110. American Geophysical Union, San Francisco, California.
 

 Valdez, R.A. and W.J. Masslich. 1999. Evidence of reproduction by humpback chub in a warm spring of the Colorado River in Grand Canyon, Arizona. Southwestern Naturalist 44(3):384-387.
 

 Valdez, R.A., W. Persons and T.L. Hoffnagle. 1999. Non-native fish control strategy for Grand Canyon. U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Walters, C. and J. Korman.  1999. Linking recruitment to trophic factors: revisiting the Beverton-Holt recruitment model from a life history and multispecies perspective. Reviews in Fish Biology and Fisheries 9(2):187-202.
 

 Baedecker, M.J. and L.C. Friedman, eds. 2000. Modeling and experimental flooding in the Grand Canyon. Pages 10-11. In M.J. Baedecker and L.C. Friedman, eds. U.S. Geological Survey National Research Program in the Hydrologic Sciences. U.S. Geological Survey Circular 1195.
 

 Brower, A., C. Reedy and J. Yelin-Kefer. 2000. Consensus and convervation in the upper Colorado River Basin Recovery Implementation Program. Conservation Biology 15(4):1001-1007.
 

 Burdick, B.D. 2000. Overview of telemetry equipment and techniques used with native fishes in the upper Colorado River basin. Pages 173–185 in J.H. Eiler, D.J. Alcorn and M.R. Neuman, eds. Biotelemetry 15: Proceedings of the 15th International Symposium on Biotelemetry, Juneau, Alaska. International Society on Biotelemetry, Wageningen, The Netherlands.
 

 Chart, T.E. and L.D. Lentsch. 2000. Reproduction and recruitment of Gila spp. and Colorado pikeminnow in the Middle Green River 1992-1996. Final report. Utah Division of Wildlife Resources, Salt Lake City.
 

 Clarkson, R.W. and M.R. Childs. 2000. Temperature effects of hypolimnial-release dams on early life stages of Colorado River basin big-river fishes. Copeia 2:402-412.
 

 Daerr, E.G.  2000. Fish running out of water. National Parks 74(5/6):50.
 

 Desert Fishes Council. 2000. Proceedings of the Desert Fishes Council Volume XXXI Annual Symposium. Desert Fishes Council, Bishop, California. 63 pages.
 

 Gorman, O.T. 2000. Ecological and genetic considerations for collection of gametes from wild fishes. Advances in World Aquaculture 7:319-322.
 

 Gorman, O.T. and L. Coggins. 2000. Status and trends of native and non-native fishes of the Colorado River in Grand Canyon 1990-2000. Final report. U.S. Fish and Wildlife Service, Flagstaff, Arizona.
 

 Gosnell, H. 2000. Water, fish, tribes, and choice: the boundaries of agency discretion in the implementation of the Endangered Species Act. An analysis of the Section 7 consultation process for the Animas-La Plata Project, Colorado. 
 

 Hayse, J. W., S.F. Daly, A. Tuthill, R.A. Valdez, R. A., B. Cowdell and G. Burton. 2000. Effect of daily fluctuations from Flaming Gorge Dam in ice processes in the Green River. Argonne National Laboratory, Illinois. 123 pages.
 

 Heckmann, R. 2000. Asian tapeworm, Bothriocephalus acheilognathi (Yamaguti, 1934), a recent cestode introduction into the western United States of America; control methods and effect on endangered fish populations. Proceedings of Parasitology 29: 1-24.
 

 Hoffnagle, T.L. 2000. Humpback chub Gila cypha health and parasites, 1998-1999. Final report. Arizona Game and Fish Department, Phoenix.
 

 Hoffnagle, T.L., R.A. Cole and A. Choudhury. 2000. Parasites of native and non-native fishes of the lower Little Colorado River, Arizona. 1999 Annual report. U.S. Geological Survey, Biological Resources Division, Madison, Wisconsin, and Arizona Game and Fish Department, Phoenix.
 

 Holden, P.B. 2000. Program evaluation report for the 7-year research period (1991-1997). San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Korte, N.E. 2000. Selenium poisoning of wildlife and western agriculture: cause and effect. Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, Tennessee. 54 pages.
 

 Lentsch, L.D., B.G. Hoskins and L.M. Lubomudrov. 2000. White River and endangered fish recovery: A hydrological, physical and biological synopsis. Final Report. Publication Number 00-37. Utah Division of Wildlife Resources, Salt Lake City. 56 pages.
 

 Meretsky, V.J., R.A.Valdez, M.E. Douglas, M.J. Brouder, O.T. Gorman and P.C. Marsh. 2000. Spatiotemporal variation in length-weight relationships of endangered humback chub: implications for conservation and management. Transactions of the American Fisheries Society 129:419-428.
 

 Minckley, W.L. and B.D. DeMarais. 2000. Taxonomy of chubs (Teleostei, Cyprinidae, genus Gila) in the American Southwest with comments on conservation. Copeia (1):251-256.
 

 Muth, R.T., L.W. Crist, K.E. LaGory, J.W. Hayse, K.R. Bestgen, T.P. Ryan, J.K. Lyons and R.A. Valdez. 2000. Flow and temperature recommendations for the endangered fishes in the Green River downstream of Flaming Gorge Dam. Final report. 
 

 Nesler, T.P. 2000. Recovery of the Colorado River endangered fishes: biological recovery goals and criteria for Colorado pikeminnow, humpback chub, razorback sucker and bonytail. A proposal for downlisting and delisting. Colorado Division of Wildlife, Denver. 48 pages + tables.
 

 Orchard, K.L and J.C. Schmidt. 2000. Geomorphic assessment of the availability of potential humpback chub habitat in the Green River in Desolation and Gray Canyons, Utah. Report A. In Flaming Gorge Studies: Reproduction and Recruitment of Gila spp.and Colorado Pikeminnow (Ptychocheilus lucius) in the Green River. Final report. Utah Division of Wildlife.
 

 Platania, S.P., R.K. Dudley and S.L. Maruca 2000. Drift of fishes in the San Juan River 1991-1997. Final report. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 71 pages.
 

 SWCA, Inc. Environmental Consultants. 2000. Strategies for developing the Little Colorado River management plan. SWCA, Inc. Environmental Consultants, Flagstaff, Arizona.
 

 SWCA, Inc. Environmental Consultants. 2000. Recovery goals for the four Colorado River endangered fish species. SWCA, Inc., Logan, Utah. 60 pages.
 

 Tyus, H.M. and J.F. Saunders, III. 2000. Nonnative fish control and endangered fish recovery: lessons from the Colorado River. Fisheries 25(9):848-855.
 

 U.S. Bureau of Reclamation. 2000. Environmental impact statement. Colorado River interim surplus criteria. Final. 
 

 U.S. Bureau of Reclamation. 2000. Environmental impact statement. Colorado River interim surplus criteria. Draft. 
 

 U.S. Department of Energy. 2000. Environmental assessment and finding of no significant impact: transfer of the Department of Energy Grand Junction Office to Non-DOE ownership. U.S. Department of Energy, Grand Junction, Colorado. 85 pages.
 

 U.S. Department of Energy. 2000. Environmental Assessment and Finding of No Significant Impact: Curecanti-Lost Canyon 230-kV Transmission Line Reroute Project, Montrose County, Colorado. U.S. Department of Energy, Western Area Power Administration. 146 pages.
 

 U.S. Fish and Wildlife Service. 2000. Flaming Gorge Dam, Colorado River Storage Project, Utah. Federal Register 65(109):35957-35961.
 

 U.S. Fish and Wildlife Service. 2000. Radionuclides and trace elements in fish and wildlife of the Puerco and Little Colorado Rivers, Arizona. 
 

 U.S. Fish and Wildlife Service. 2000. Endangered species permit applications. Federal Register 65(74):20479-20480.
 

 U.S. Fish and Wildlife Service. 2000. Endangered and threatened species permit applications. Federal Register 65(151):48010.
 

 U.S. Fish and Wildlife Service. 2000. Endangered and threatened species permit applications. Federal Register 65(182):56589-56590.
 

 U.S. Fish and Wildlife Service. 2000. Endangered and threatened species permit applications. Federal Register 65(91):30126-30127.
 

 U.S. Fish and Wildlife Service. 2000. Endangered and threatened species permit applications. Federal Register 65(62):16952-16953.
 

 U.S. Fish and Wildlife Service. 2000. Revised base flow recommendations and preliminary guidance for future development of water resources in the Yampa River Basin. Draft memorandum. U.S. Fish and Wildlife Service, Region 6, Denver, Colorado.
 

 Upper Colorado River Basin Recovery Implementation Program. 2000. Fast facts. 
 

 Valdez, R.A. and R.J. Ryel. 2000. Summary of recovery goals for the four endangered fishes of the Colorado River basin. SWCA, Inc., Logan, Utah.
 

 Wydoski, R.S and E.J. Wick. 2000. Flooding and aquatic ecosystems. Pages 238-268 in E.E. Wohl, ed. Inland Flood Hazards: Human, Riparian and Aquatic Communities. Cambridge University Press, Cambridge, Massachusetts.
 

 Arizona Game and Fish Department. 2001. Gila cypha. Unpublished abstract compiled and edited by the Heritage Data Management System, Arizona Game and Fish Department, Phoenix. 7 pages.
 

 Bundy, J.M. and K.R. Bestgen. 2001. Evaluation of the interagency standardized monitoring program sampling technique in backwaters of the Colorado River in the Grand Valley, Colorado. Colorado State University Larval Fish Laboratory, Fort Collins. 83 pages.
 

 Bundy, J.M. and K.R. Bestgen. 2001. Confirmation of daily increment deposition in otoliths of young razorback suckers. Southwestern Naturalist 46(1):34-40.
 

 Coggins, L. and C. Walters. 2001. Trends in abundance, recruitment, and mortality of humpback chub (Gila cypha) in the Little Colorado River. American Fisheries Society Annual Meeting 131:152.
 

 Coggins, L.G., Jr. and D.R. Van Haverbeke. 2001. Fisheries monitoring activities in the Little Colorado River within Grand Canyon during 2000. U.S. Fish and Wildlife Service, Flagstaff, Arizona. 109 pages.
 

 Desert Fishes Council. 2001. Proceedings of the Desert Fishes Council Volume XXXII Annual Symposium. Desert Fishes Council, Bishop, California. 82 pages.
 

 Douglas, M.E., M.R. Douglas, J.M. Lynch and D.M. McElroy. 2001. Use of geometric morphometrics to differentiate Gila (Cyprinidae) within the upper Colorado River basin. Copeia (2):389-400.
 

 Farmer, M.C. 2001. Getting the safe minimum standard to work in the real world: a case study in moral pragmatism. Ecological Economics 38(2):209-226.
 

 Gerber, A.S., C.A. Tibbets and T.E. Dowling. 2001. Role of introgressive hybridization in the evolution of the Gila robusta complex (Teleostei: Cyprinidae). Evolution 55(10):2028-2039.
 

 Hansen, J.V. 2001. Endangered economies. FORUM for Applied Research and Public Policy:45-51.
 

 Hawkins, J.A. and J. O’Brien. 2001. Research plan for developing flow recommendations in the Little Snake River, Colorado and Wyoming, for endangered fishes of the Colorado River Basin. Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.
 

 Hoffnagle, T.L. and M.A. Tuegel. 2001. Diet preference and overlap among larval and juvenile native and non native fishes in backwaters of the Colorado River in Grand Canyon. American Fisheries Society Annual Meeting 131:165-166.
 

 Hoffnagle, T.L., A. Choudhury and R.A. Cole. 2001. Health and parasites of the endangered humpback chub Gila cypha in the Lower Little Colorado River and Colorado River, Grand Canyon, Arizona. American Fisheries Society Annual Meeting 131:177-178.
 

 Marsh, P.C., C.A. Pacey and G. Mueller. 2001. Bibliography for the big river fishes, Colorado River. Final report, task agreement 1, cooperative agreement 00CRAG0004. U.S. Geological Survey, Denver, Colorado and Arizona State University, Tempe. 1515 KB (compact disc).
 

 National Park Service. 2001. Workshop on population estimates for Colorado pikeminnow and humpback chub. National Park Service, Fort Collins, Colorado.
 

 No author. 2001. Elkhead Dam/reservoir fish separation preliminary design report. Draft. City of Craig, Craig, Colorado. 33 pages.
 

 Robinson, A.T. and M.R. Childs. 2001. Juvenile growth of native fishes in the Little Colorado River and in a thermally modified portion of the Colorado River. North American Journal of Fisheries Management 21:809-815.
 

 Shannon, J.P.  2001. Factors affecting the aquatic community in the Colorado River through Grand Canyon, Arizona. Doctoral dissertation, Northern Arizona University.
 

 Stone, D.M. and O.T. Gorman. 2001. Diel locomotor activity patterns across a native fish assemblage in the Little Colorado River, Arizona. American Fisheries Society Annual Meeting 131:153-154.
 

 Thieme, M.L., C.C. McIvor, M.J. Brouder and T.L. Hoffnagle. 2001. Effects of pool formation and flash flooding on relative abundance of young-of-year flannelmouth suckers in the Paria River, Arizona. Regulated Rivers Research and Management 17(2):145-156.
 

 Tyus, H.M. and J.F. Saunders, III. 2001. An evaluation of the role of tributary streams for recovery of endangered fishes in the upper Colorado River Basin with recommendations for future recovery actions. Final Report. Project Number 101. University of Colorado at Boulder, Boulder. 121 pages.
 

 U.S. Bureau of Reclamation. 2001. Record of decision. Colorado River interim surplus guidelines. Final enviromental impact statement. 
 

 U.S. Bureau of Reclamation. 2001. Colorado River interim surplus guidelines. Federal Register 66(17):7772-7782.
 

 U.S. Environmental Protection Agency. 2001. Office of Pesticide Programs. Annual report 2000. U.S. Environmental Protection Agency, Office of Prevention, Pesticides and Toxic Substances, Washington, D.C. 78 pages.
 

 U.S. Fish and Wildlife Service. 2001. Technical publications of the U.S. Fish and Wildlife Service Fish Technology Centers 1966–December 2000. 
 

 Valdez, R.A. and R.T. Muth. 2001. Upper Colorado River endangered fish recovery program. American Fisheries Society Annual Meeting 131:43.
 

 Valdez, R.A., T.L. Hoffnagle, C.D. McIvor, T. McKinney and W.C. Liebfried. 2001. Effects of a test flood on fishes of the Colorado River in Grand Canyon, Arizona. Ecological Applications 11:686-700.
 

 VanHaverbeke, D.R. 2001. Using minimum effective population sizes for recovery: a case example using the humpback chub (Gila cypha). American Fisheries Society Annual Meeting 131:134.
 

 Ward, D.L. 2001. Effects of reduced water temperature on swimming performance and predation vulnerability of age-0 flannelmouth sucker (Catostomus latipinnis). Master's thesis, University of Arizona, Tucson. 95 pages.
 

 Benenati, E.P., J.P. Shannon, A. Haden, K. Straka and D.W. Blinn. 2002. Attempts for ecological restoration with artificial hydrology in the Colorado River below Glen Canyon Dam. Ecological Society of America Annual Meeting Abstracts 87:74.
 

 Coggins, L., C. Walters and R.S. Rogers. 2002. Fish community in Grand Canyon: past, present, and future? Ecological Society of America Annual Meeting Abstracts 87:101.
 

 Cole, R.A. 2002. What are parasitologists doing in the United States Geological Survey? Comparative Parasitology 69(2):132-134.
 

 Desert Fishes Council. 2002. Proceedings of the Desert Fishes Council Volume XXXIII Annual Symposium. Desert Fishes Council, Bishop, California. 72 pages.
 

 Garrigan, D., P.C. Marsh and T.E. Dowling. 2002. Long-term effective population size of three endangered Colorado River fishes. Animal Conservation 5:95-102.
 

 Grand Canyon Monitoring and Research Center. 2002. Experimental flow treatments and mechanicl removal activities for WY 2002-2003. Draft science plan. U.S. Geological Survey, Flagstaff, Arizona.
 

 Haines, B. and T. Modde. 2002. Humpback chub monitoring in Yampa Canyon, 1998-2000. Final report. U.S. Fish and Wildlife Service, Colorado Fish Project, Vernal, Utah. 35 pages.
 

 Hamilton, S.J., K.M. Holley and K.J. Buhl. 2002. Hazard assessment of selenium to endangered razorback suckers (Xyrauchen texanus). Science of the Total Environment 291(1-3):111-121.
 

 Hamilton, S.J., K.M. Holley, K.J. Buhl, F.A. Bullard, L.K. Weston and S.F. McDonald. 2002. Impact of selenium and other trace elements on the endangered adult razorback sucker. Impact of selenium and other trace elements on the endangered adult razorback sucker. Environmental Toxicology 17(4):297-323.
 

 Hamilton, S.J., K.M. Holley, K.J. Buhl, F.A. Bullard, L.K. Weston and S.F. McDonald. 2002. Toxicity of selenium and other elements in food organisms to razorback sucker larvae. Aquatic Toxicology 59(3-4):253-281.
 

 McAda, C.W. 2002. Population size and structure of humpback chub in Black Rocks, 1998-2000. U.S. Fish and Wildlife Service, Grand Junction, Colorado. i-A1 pages.
 

 Melis, T.S., R.H. Webb and P.G. Griffiths. 2002. Grand Canyon debris flows: Implications for aquatic habitat structure and availability below Glen Canyon Dam? Ecological Society of America Annual Meeting Abstracts 87:210.
 

 Mitchell, R.M., R.L. Johnson and G.L. Harp. 2002. Population structure of an endemic species of yellowcheek darter, Etheostoma moorei (Raney and Suttkus), of the upper Little Red River, Arkansas. American Midland Naturalist 148(1):129-137.
 

 National Park Service. 2002. Special regulations; areas of the national park system. Federal Register 67(172):56785-56794.
 

 Nesler, T.P. 2002. Interactions between endangered fishes and introduced game fishes in the Yampa River, Colorado 1987-1991. Final report. Project number 91-29. Colorado Division of Wildlife, Aquatic Research Section, Fort Collins. 53 pages.
 

 Persons, W. 2002. Little Colorado River fish monitoring, 2002 annual report. Submitted to Grand Canyon Monitoring and Research Center. Cooperative agreement 02WRAG0030. Grand Canyon Monitoring and Research Center, Flagstaff, Arizona.
 

 Persons, W.R., D.W. Speas, T. McKinney and L.M. Riley. 2002. Balancing conservation of native fishes and a recreational trout fishery: is it possible under an adaptive management program? Ecological Society of America Annual Meeting Abstracts 87:234.
 

 Porter, M.E. and M.J.C. Kearsley. 2002. Near shore vegetation responses to two flow regimes on the Colorado River in Grand Canyon, National Park. Ecological Society of America Annual Meeting Abstracts 87:238.
 

 Powell, K. 2002. Open the floodgates. Nature 420:356-358.
 

 SAIC/Jones & Stokes. 2002. Conservation plan for the lower Colorado River Multi-Species Conservation Program. (JS 00-450). Second administrative draft. SAIC/Jones & Stokes, Sacramento, California.
 

 Scheerer, P.D. 2002. Implications of floodplain isolation and connectivity on the conservation of an endangered minnow, Oregon chub, in the Willamette River, Oregon. Transactions of the American Fisheries Society 131(6):1070-1080.
 

 Smith, G.E., T.E. Dowling, K.W. Gobalet, T. Lugaski, D.K. Shiozawa and R.P. Evans. 2002. Biogeography and rates of evolution of Great Basin fishes. Pages 175-234 in R. Hershler, D.B. Madsden and D.R. Curry, eds. Great Basin Aquatic Systems History, Contributions to the Earth Sciences, number 33. Smithsonian Institution, Washington, D.C. Smithsonian.
 

 SWCA, Inc. Environmental Consultants. 2002. Native fish monitoring activities in the Colorado River within Grand Canyon during 2001. Draft final report. Contract # 01WRAG0046. SWCA, Inc., Flagstaff, Arizona. 21 pages.
 

 U.S. Department of the Interior. 2002. Proposed experimental releases from Glen Canyon Dam and removal of non-native fish. 
 

 U.S. Environmental Protection Agency. 2002. Part H-I case study analysis for the proposed section 316(b) Phase 2 existing facilities rule, May 2002. U.S. Environmental Protection Agency, Office of Water, Washington, D.C. 220 pages.
 

 U.S. Environmental Protection Agency. 2002. Foundation for global action persistent organic pollutants: United States perspective. U.S. Environmental Protection Agency, Office of Research and Development, Washington, D.C. 172 pages.
 

 U.S. Fish and Wildlife Service. 2002. Notice of availability of recovery goals for four endangered fishes of the Colorado River basin. Federal Register 67(167):55270-55271.
 

 U.S. Fish and Wildlife Service. 2002. Endangered and threatened species permit applications. Federal Register 67(249):79130-79131.
 

 U.S. Fish and Wildlife Service. 2002. Endangered and threatened species permit applications. Federal Register 67(192):62074-62075.
 

 U.S. Fish and Wildlife Service. 2002. Endangered and threatened species permit applications. Federal Register 67(146):49368.
 

 U.S. Fish and Wildlife Service. 2002. Endangered and threatened species permit applications. Federal Register 67(68):17088-17089.
 

 U.S. Fish and Wildlife Service. 2002. Endangered and threatened species permit applications. Federal Register 67(45):10429-10430.
 

 U.S. Fish and Wildlife Service. 2002. Humpback chub (Gila cypha) recovery goals: ammendment and supplement to the humpback chub recovery plan. U.S. Fish and Wildlife Service, Mountain-Prairie Region (6), Denver, Colorado. 107 pages.
 

 Upper Colorado River Basin Recovery Implementation Program. 2002. Nonnative fish control workshop. Summary, conclusions, and recommendations. Upper Colorado River Endangered Fish Recovery Program, Lakewood, Colorado. 101 pages.
 

 Van Haverbeke, D.R. and L.G. Coggins, Jr. 2002. Stock assessment and fisheries monitoring activities in the Little Colorado River within Grand Canyon during 2001. Document number USFWS-AZFRO-FL-02-002. U.S. Fish and Wildlife Service, Flagstaff, Arizona. 82 pages.
 

 Ward, D.L. 2002. Standardized methods for handling fish in Grand Canyon research. Report submitted to the Grand Canyon Monitoring and Research Center. Grand Canyon Monitoring and Research Center, Flagstaff, Arizona.
 

 Anderson, R. and G. Stewart. 2003. Riverine fish flow investigations. Habitat based instream flow recommendations for the Yampa, Colorado and Dolores Rivers. Colorado Division of Wildlife, Fort Collins. 100 pages.
 

 Coggins, L., C. Walters, C. Paukert and S. Gloss. 2003. An overview of status and trend information for the Grand Canyon population of the humpback chub, Gila cypha. U.S. Geological Survery, Grand Canyon Monitoring and Research Center, Flagstaff, Arizona.
 

 Coggins, L., M. Yard and C. Paukert. 2003. Piscivory by non-native salmonids in the Colorado River and an evaluation of the efficacy of mechanical removal of non-native salmonids. U.S. Geological Survery, Grand Canyon Monitoring and Research Center, Flagstaff, Arizona.
 

 Crist, L.W. and D.W. Ryden. 2003. Genetics management plan for the endangered fishes of the San Juan River. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction, Colorado. 45 pages.
 

 Douglas, M.R., P.C. Brunner and M.E. Douglas. 2003. Drought in an evolutionary context: molecular variability in flannelmouth sucker (Catostomus latipinnis) from the Colorado River Basin of western North America. Freshwater Biology 48(7):1254-1273.
 

 Grand Canyon Monitoring and Research Center. 2003. An overview of status and management strategy for humpback chub in Grand Canyon. Committee report of the humpback chub ad hoc committee to the adaptive management work group of the Glen Canyon Dam adaptive management program, Flagstaff, Arizona. 111 pages.
 

 Hamilton, S.J., K.M. Holley, K.J. Buhl, F.A. Bullard, L.K. Weston and S.F. McDonald. 2003. Evaluation of flushing of a backwater channel: concentrations of selenium and other inorganic elements in water, sediment, invertebrates, forage fish, and Colorado pikeminnow. Recovery program project number C6-WW. U.S. Geological Survey, Biological Resources Division, Columbian Environmental Research Center, Yankto, South Dakota. 67 pages.
 

 Hawkins, J.A. 2003. Recapture and growth rates of three Colorado River endangered fish species: a comparison between electrofishing and nonelectrofishing. Colorado State University, Fort Collins. 23 pages.
 

 Hudson, J.M. and J.A. Jackson. 2003. Population estimates for humpback chub (Gila cypha) and roundtail chub (Gila robusta) in Westwater Canyon, Colorado River, Utah, 1998–2000. Final report. Publication Number 03-51. State of Utah, Department of Natural Resources, Division of Wildlife Resources - Native Aquatics, Salt Lake City, Utah. 45 pages.
 

 Humpback Chub Ad Hoc Committee. 2003. Status and management strategy for humpback chub in Grand Canyon. Humpback Chub Ad Hoc Committee to the Adaptive Management Work Group of the Glen Canyon Adaptive Management Program. 
 

 Irving, D., B. Haines and T. Modde. 2003. White River base flow study, Colorado and Utah, 1995-1996. Draft report. Upper Colorado River Basin Recovery Implementation Program Project No. 5D. 
 

 Irving, D., B. Haines and T. Modde. 2003. Appendices. White River base flow study, Colorado and Utah, 1995-1996. Draft report. Upper Colorado River Basin Recovery Implementation Program Project No. 5D. 
 

 Kitchell, J.F., C.Grimes, S.T. Lindley, D.Otis and C. Schwarz. 2003. Report to the Adaptive Management Work Group, Glen Canyon Dam Adaptive Management Program: an independent review of ongoing and proposed scientific methods to assess the status and trends of the Grand Canyon population of the humpback chub (Gila cypha). 
 

 LaGory, K.E., J.W. Hayse and D. Tomasko 2003. Recommended priorites for geomorphology research in endangered fish habitats of the upper Colorado River basin. Final report. Project 134. Upper Colorado River Endangered Fish Recovery Program. 159 pages.
 

 Martinez, P. 2003. Look at the smallmouth bass scenario in the Yampa River basin. Presentation at Upper Colorado River Endangered Fish Recovery Program, 24th Annual Research Meeting, Grand Junction, Colorado.
 

 Minckley, W.L., P.C. Marsh, J.E. Deacon, T.E. Dowling, P.W. Hendrick, W.J. Matthews and G. Mueller. 2003. Conservation plan for native fishes of the lower Colorado River. Bioscience 53(3):219-234.
 

 National Park Service. 2003. Special regulations; areas of the national park system. Federal Register 68(12):2466-2476.
 

 Osmundson, D.B. 2003. Removal of non-native centrarchids from upper Colorado River backwaters, 1991–2001. Final report. Project number 89. U.S. Fish and Wildlife Service, Grand Junction, Colorado.
 

 Shannon, J.P., D.W. Blinn, G.A. Haden, E.P. Benenati and K.P. Wilson. 2003. Food web implications of delta13C and delta15N variability over 370 km of the regulated Colorado River USA. Isotopes Environmental Health Studies 37(3):179-91.
 

 Simons, A.M., P.B. Berendzen and R.L. Mayden. 2003. Molecular systematics of North American phoxinin genera (Actinopterygii: Cyprinidae) inferred from mitochondrial 12S and 16S ribosomal RNA sequences. Zoological Journal of the Linnean Society 139(1):63-80.
 

 Snyder, D.E. 2003. Electrofishing and its harmful effects onf fish. Final report. Information and Technology Report USGS/BRD/ITR–2003-0002. U.S. Bureau of Reclamation, upper Colorado Regional Office, Salt Lake City, Utah.
 

 U.S. Bureau of Reclamation. 2003. Environmental assessment. Endangered fish passage project at the Grand Valley Project Diversion Dam and fish screen in the Government Highline Canal. Final. 
 

 U.S. Bureau of Reclamation. 2003. Endangered fish passage project at the Grand Valley Project Diversion Dam and fish screen in the Government Highline Canal. Finding of no significant impact. 
 

 U.S. Bureau of Reclamation. 2003. Report to Congress: operations of Glen Canyon Dam pursuant to the Grand Canyon Protection Act of 1992, water years 1999-2001. 
 

 U.S. Bureau of Reclamation. 2003. Glen Canyon Dam Adaptive Management Work Group (AMWG); notice of meeting. Federal Register 68(45):11143.
 

 U.S. Bureau of Reclamation. 2003. Glen Canyon Dam Adaptive Management Work Group (AMWG); notice of meeting. Federal Register 68(213):62474.
 

 U.S. Bureau of Reclamation. 2003. Glen Canyon Dam Adaptive Management Work Group (AMWG); notice of meeting. Federal Register 68(58):14697.
 

 U.S. Bureau of Reclamation. 2003. Glen Canyon Dam Adaptive Management Work Group (AMWG), notice of meeting. Federal Register 68(115):35701.
 

 U.S. Bureau of Reclamation. 2003. Glen Canyon Dam Adaptive Management Work Group (AMWG); notice of meeting. Federal Register 68(92):25627.
 

 U.S. Bureau of Reclamation. 2003. Glen Canyon Dam Adaptive Management Work Group (AMWG); notice of meeting. Federal Register 68(145):44543.
 

 U.S. Bureau of Reclamation. 2003. Endangered Fish Passage Project at the Grand Valley Project Diversion Dam and Fish Screen in the Government Highline Canal. U.S. Bureau of Reclamation, Upper Colorado Region, Western Colorado Area Office, Grand Junction, Colorado. 59 pages + appendices.
 

 U.S. Fish and Wildlife - Arizona Fishery Resources Offices. 2003. Monthly activity report Arizona Fishery Resources Offices Pinetop, Parker, San Carlos, Flagstaff. USFWS-AZFRO-PT-03-012 
 

 U.S. Fish and Wildlife - Arizona Fishery Resources Offices. 2003. Monthly activity report Arizona Fishery Resources Offices Pinetop, Parker, San Carlos, Flagstaff. USFWS-AZFRO-PT-03-009. 
 

 U.S. Fish and Wildlife Service. 2003. Humpback chub critical habitat. 
 

 U.S. Fish and Wildlife Service. 2003. Razorback sucker critical habitat. 
 

 U.S. Fish and Wildlife Service. 2003. Endangered and threatened species permit applications. Federal Register 68(103):32077-32078.
 

 U.S. Fish and Wildlife Service. 2003. Environmental assessment for the management plan for endangered fishes in the Yampa River basin. Draft. Federal Register 68(146):44808-44809.
 

 U.S. Geological Survey. 2003. Researchers study effects of trout removal and fluctuating flows on native fishes in the Grand Canyon. Grand Canyon Monitoring and Research Center, Flagstaff, Arizona. 1 page.
 

 Ward, D.L. 2003. Preserving humpback chub from extinction. 
 

 Ward, D.L. and S.A. Bonar. 2003. Effects of cold water on susceptability of age-0 flannelmouth sucker to predation by rainbow trout. Southwestern Naturalist 48(1):43-43.
 

 Werner, W.E.  2003. Conservation of native species through habitat conservation plans, safe harbor agreements, and similar mechanisms in Arizona. American Fisheries Society Annual Meeting 133:337-338.
 

 White, M.M. 2003. Preliminary analysis of mitochondrial DNA sequence variation in wild and hatchery Colorado Pikeminnow, Ptychocheilus lucius. American Fisheries Society Annual Meeting 133:356-357.
 

 Yard, M. and L. Coggins. 2003. Non-native fish removal efforts in Grand Canyon: a proposed modification to ongoing activities. Draft proposal. U.S. Geological Survery, Southwest Biological Service Center, Grand Canyon Monitoring and Research Center.
 

 Arizona Game and Fish Department. 2004. Species in the Arizona Heritage Data Management System, listed alphabetically by common name. 
 

 Arizona Game and Fish Department. 2004. Species in the Arizona Heritage Data Management System, listed alphabetically by county, by taxon, by scientific name. 
 

 Arizona Game and Fish Department. 2004. Species in the Arizona Heritage Data Management System, listed alphabetically by scientific name. 
 

 Arizona Game and Fish Department. 2004. Species in the Arizona Heritage Data Management System, listed alphabetically by taxon and scientific name. 
 

 Arizona Game and Fish Department. 2004. Special Status Species in the Arizona Heritage Data Management System, listed alphabetically by taxon and scientific name. 
 

 Arizona Game and Fish Department. 2004. Special Status Species in Arizona, listed alphabetically by watershed code, by taxon, by scientific name. 
 

 Arizona Game and Fish Department. 2004. Special Status Species in the Arizona Heritage Data Management System, listed alphabetically by county, by taxon, by scientific name. 
 

 Caldwell, C.A., S.A. Fuller, W.R. Gould, P.R. Turner and D.M. Hallford. 2004. Seasonal changes in 17 ss estradiol of the Rio Grande chub (Gila pandora) in south central New Mexico. Southwestern Naturalist 49(3):311-315.
 

 Choudhury, A., T.L. Hoffnagle and R.A. Cole. 2004. Parasites of native and nonnative fishes of the Little Colorado River, Grand Canyon, Arizona. The Journal of Parasitology 90(5):1042-1053.
 

 Cole, R.A. 2004. Endangered fish threatened by Asian fish tapeworm: the Asian fish tapeworm may inhibit the recovery of the humpback chub in the Grand Canyon. U.S. Geological Survey, NWHC Information Sheet, August 2004.
 

 Desert Fishes Council. 2004. Proceedings of the Desert Fishes Council Volume XXXIV and XXXV Annual Symposium. Desert Fishes Council, Bishop, California. 134 pages.
 

 Didenko, A.V. and S.A .Bonar. 2004. Standard weight (W-s) equations for four rare desert fishes. North American Journal of Fisheries Management 24(2):697-703.
 

 Hamilton, S.J., K.M. Holley, K.J. Buhl, F.A. Bullard, L.K. Weston and S.F. McDonald. 2004. Evaluation of flushing of a high-selenium backwater channel in the Colorado River. Evaluation of flushing of a high-selenium backwater channel in the Colorado River. Environmental Toxicology 19(1):51-81.
 

 Hedrick, P.W.  2004. Recent developments in conservation genetics. Forest Ecology and Management 197(1-3):3-19.
 

 Hurt, C. and P. Hedrick. 2004. Conservation genetics in aquatic species: general approaches and case studies in fishes and springsnails of arid lands. Aquatic Science 66(4):402-413.
 

 Keeler-Foster, C.L., I.B. Spies and V. Bondu-Hawkins. 2004. Development of microsatellite markers in bonytail (Gila elegans) with cross-species amplification in humpback chub (Gila cypha). Molecular Ecology Notes 4(1):23-25.
 

 Keeler-Foster, C.L., I.B. Spies and V. Bondu-Hawkins. 2004. Development of microsatellite markers in bonytail (Gila elegans) with cross-species amplification in humpback chub (Gila cypha). Molecular Ecology Notes 4(1):23-25.
 

 Korman, J., S.M. Wiele and M. Torizzo. 2004. Modelling effects of discharge on habitat quality and dispersal of juvenile humpback chub (Gila cypha) in the Colorado River, Grand Canyon. Regulated Rivers 20:379-400.
 

 Lower Colorado River Multi-Species Conservation Program. 2004. Lower Colorado River Multi-Species Conservation Program Final EIS/EIR. Population and housing. 
 

 Lower Colorado River Multi-Species Conservation Program. 2004. Programmatic environmental impact report. Volume I. Final. 
 

 Lower Colorado River Multi-Species Conservation Program. 2004. Habitat conservation plan. Volume II. Final. 
 

 Lower Colorado River Multi-Species Conservation Program. 2004. Biological assessment. Volume III. Final. 
 

 Lower Colorado River Multi-Species Conservation Program. 2004. Lower Colorado River Multi-Species Conservation Program Final EIS/EIR. Executive summary. 
 

 Lower Colorado River Multi-Species Conservation Program. 2004. Lower Colorado River Multi-Species Conservation Program Final EIS/EIR. Biological resources. 
 

 Lower Colorado River Multi-Species Conservation Program. 2004. Appendices to Volumes I-III and V. Volume IV. Final. 
 

 Lower Colorado River Multi-Species Conservation Program. 2004. Lower Colorado River Multi-Species Conservation Program Final EIS/EIR. Alternatives. 
 

 Martinez, A.M. 2004. An evaluation of nonnative fish control treatments in ponds along the Colorado and Gunnison Rivers, 1996-2002. Recovery Program Project Number 18/19. Upper Colorado River Endangered Fish Recovery Program. 72 pages.
 

 Paukert, C.P. 2004. Comparison of electrofishing and trammel netting variability for sampling native fishes. Journal of Fish Biology 65:1643-1652.
 

 Paukert, C.P. and R.S. Rogers. 2004. Factors affecting condition of flannelmouth suckers in the Colorado River, Grand Canyon, Arizona. North American Journal of Fisheries Management 24:648-653.
 

 Portz, D.E. and H.M. Tyus. 2004. Fish humps in two Colorado River fishes: a morphological response to cyprinid predation? Environmental Biology of Fishes 71:233-245.
 

 Propst, D.L. and K.B. Gido. 2004. Responses of native and nonnative fishes to natural flow regime mimicry in the San Juan River. Transactions of the American Fisheries Society 133:922–931.
 

 Roehm, G.W. 2004. Management plan for endangered fishes in the Yampa River basin. Environmental assessment. 
 

 Stone, D. and P. Sponholtz 2004. Translocation of young-of-year humpback chub above Chute Falls in the Little Colorado River, Arizona. Interim report. U.S. Fish and Wildlife Service, Arizona Fishery Resources Office, Flagstaff, Arizona. 23 pages.
 

 Stone, D.M. 2004. Differential detection of ingested items evacuated from genus Gila cyprinids by two nonlethal alimentary tract lavage technigues. Journal of Freshwater Ecology 19(4):559-565.
 

 Trammel, M., S. Meismer and D. Speas 2004. Nonnative cyprinid removal in the lower Green and Colorado rivers, Utah. Final report. Publication # 05-10. Upper Colorado River Endangered Fish Recovery Program, Salt Lake City, Utah. 60 pages.
 

 U.S. Bureau of Reclamation. 2004. Response to public comments on draft supplemental environmental assessment proposed experimental actions for water years 2005-2006 Colorado River, Arizona, in Glen Canyon National Recreation Area and Grand Canyon National Park. 
 

 U.S. Bureau of Reclamation. 2004. Proposed experimental actions for water years 2005-2006, Colorado River, Arizona, in Glen Canyon National Recreation Area and Grand Cayon National Park. 
 

 U.S. Bureau of Reclamation. 2004. Environmental assessment for providing fish screening in Redlands Power Canal. Final. 
 

 U.S. Bureau of Reclamation. 2004. Providing fish screening in the Redlands Power Canal. Findings of no significant impact. 
 

 U.S. Bureau of Reclamation. 2004. Operation of Flaming Gorge Dam draft environmental impact statement. 
 

 U.S. Bureau of Reclamation. 2004. Reservoir operations to benefit endangered fishes in the Gunnison and Colorado Rivers, Aspinall Unit, Colorado River Storage Project, Colorado. Federal Register 69(13):2943-2945.
 

 U.S. Department of the Interior. 2004. Proposed modification to experimental releases from Glen Canyon Dam and continued mechanical removal of non-native fish. 
 

 U.S. Environmental Protection Agency. 2004. Regional benefits assessment for the proposed section (316)b rule for Phase III facilities. U.S. Environmental Protection Agency, Office of Water, Washington, D.C. 700 pages.
 

 U.S. Fish and Wildlife - Arizona Fishery Resources Offices. 2004. Monthly activity report Arizona Fishery Resources Offices Pinetop, Parker, San Carlos, Flagstaff. USFWS-AZFRO-PT-04-010. 
 

 U.S. Fish and Wildlife Service. 2004. Environmental Impact Statement/Draft Environmental Impact Report (DEIS/DEIR) for the Lower Colorado River Multi-Species Habitat, Conservation Program, Section 10 Permit Application for Incidental Take, Draft Lower Colorado River Multi-Species Habitat Cons Federal Register 69(117):34184-34187.
 

 U.S. Fish and Wildlife Service. 2004. Conserving America's fisheries in the Southwest. Fisheries program Region Two strategic plan 2004-2008. U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 93 pages.
 

 U.S. Fish and Wildlife Service. 2004. Endangered and threatened species permit applications. Federal Register 69(60):16286-16287.
 

 Upper Colorado River Basin Recovery Implementation Program. 2004. Finding of no significant impact. 
 

 Upper Colorado River Basin Recovery Implementation Program. 2004. Nonnative fish management policy. Final report. 
 

 Valdez, R.A. and P. Nelson. 2004. Green River Subbasin floodplain management plan. Project number C-6. Upper Colorado River Endangered Fish Recovery Program, Denver, Colorado.
 

 Van Haverbeke, D.R. and R.L. Simmonds, Jr. 2004. Feasibility of developing a program to augment the population of humpback chub (Gila Cypha) in Grand Canyon. USFWS-AZFRO-FL-03-007. U.S. Fish and Wildlife, Arizona Fishery Resources Office, Flagstaff. 64 pages.
 

 Ward, D.L. and W. Persons. 2004. Little Colorado River fish monitoring, 2003 annual report. Submitted to Grand Canyon Monitoring and Research Center. Cooperative agreement 02WRAG0030. Grand Canyon Monitoring and Research Center, Flagstaff, Arizona.
 

 Brouder, M.J. 2005. Age and growth of roundtail chub in the upper Verde River, Arizona. Transactions of the American Fisheries Society 134(4):866-871.
 

 Brouder, M.J., C.L. Springer and S.C. Leon. 2005. Proceedings of two symposia: restoring native fish to the lower Colorado River: interations of native and non-native fishes. July 13-14, 1999, Las Vegas, Nevada, and restoring natural function within a modified riverine environment: the lower Colorado Riv U.S. Fish and Wildlife Service, Southwest Region, Albuqueque, New Mexico. 188 pages.
 

 Cole, R. 2005. Exotic tapeworm found in endangered desert fishes. U.S. Geological Survey, Fisheries and Aquatics Bulletin 4(1):2-3.
 

 Cooke, S.J., C.M. Bunt, S.J. Hamilton, C.A. Jennings, M.P. Pearson, M.S. Cooperman and D.F. Markle. 2005. Threats, conservation strategies, and prognosis for suckers (Catostomidae) in North America: insights from regional case studies of a diverse family of non-game fishes. Biological Conservation 121(3):317-331.
 

 Figiel, C.R., M.E. Ulibarri, G. Carmichael, J. Seals and J.N. Hanson. 2005. Intensive fish culture of warmwater native fishes at a coldwater fish hatchery. Pages 164-166 in Proceedings of two symposia: restoring native fish to the lower Colorado River: interaction of native and non-native fishes. July 13-14, 1999. Las Vegas, Nevada. U.S. Fish and Wildlife Service, Southwest Region, Albuquerque, New Mexico.
 

 Gorman, O.T., R.G. Bramblett, R.M. Hervin, D.R. Van Haverbeke and D.M. Stone. 2005. Distribution and abundance of native and non-native fishes of the Colorado River Ecosystem in Grand Canyon, Arizona. Page 78-94 in Proceedings of two symposia: restoring native fish to the lower Colorado River: interaction of native and non-native fishes. July 13-14, 1999. Las Vegas, Nevada. U.S. Fish and Wildlife Service, Southwest Region, Albuquerque, New Mexico.
 

 Grand Canyon Monitoring and Research Center. 2005. Library database. 
 

 Hawkins, J., C. Walford and T. Sorensen. 2005. Northern pike management studies in the Yampa River, Colorado, 1999-2002. Project No. 98A. Upper Colorado River Endangered Fish Recovery Program, Lakewood, Colorado.
 

 Leibfried, W.C. 2005. Native and non-native fish interactions in the Colorado River, Grand Canyon: an historical perspective with future implications. Page 71-77 in Proceedings of two symposia: restoring native fish to the lower Colorado River: interaction of native and non-native fishes. July 13-14, 1999. Las Vegas, Nevada. U.S. Fish and Wildlife Service, Southwest Region, Albuquerque, New Mexico.
 

 Lower Colorado River Basin Aquatic Gap Analysis Project. 2005. Lower Colorado River basin aquatic gap analysis project. 
 

 Lower Colorado River Multi-Species Conservation Program. 2005. Implementation and permit documents. 
 

 Lower Colorado River Multi-Species Conservation Program. 2005. Description. 
 

 Marsh, P.C. 2005. Immiscibility of native and nonnative species. Pages 59-63 in Proceedings of two symposia: restoring native fish to the lower Colorado River: interaction of native and non-native fishes. July 13-14, 1999. Las Vegas, Nevada. U.S. Fish and Wildlife Service, Southwest Region, Albuquerque, New Mexico.
 

 Minckley, C.O. and M.S. Thorson. 2005. Report on the fifth annual native fish roundup on Lake Havasu, AZ-CA. 14-18 February 2005. Document no. USFWS-AZFRO-PA-05-010. U.S. Fish and Wildlife Service, Arizona Fishery Resources Office, Parker, Arizona. 4 pages.
 

 No author. 2005. Program highlights 2004-2005. Preserving the West’s heritage. Upper Colorado River Endangered Fish Recovery Program and San Juan River Basin Recovery Implementation Program. 20 pages.
 

 Petersen, J.H. and C.P. Paukert. 2005. Development of a bioenergetics model for humpback chub and evaluation of water temperature changes in the Grand Canyon, Colorado River. Transactions of the American Fisheries Society 134:960-974.
 

 Stone, D.M. 2005. Effect of baiting on hoop net catch rates of endangered humpback chub. North American Journal of Fisheries Management 25(2):640-645.
 

 U.S. Bureau of Reclamation. 2005. Glen Canyon Dam Adaptive Management Work Group (AMWG); notice of meeting. Federal Register 70(23):6035-6036.
 

 U.S. Fish and Wildlife - Arizona Fishery Resources Offices. 2005. Arizona Fishery Resources Offices monthly activity reports. 
 

 U.S. Fish and Wildlife - Arizona Fishery Resources Offices. 2005. Arizona Fishery Resources Offices annual reports. 
 

 U.S. Fish and Wildlife Service. 2005. Endangered species recovery permits and applications. Federal Register 70(2):371-372.
 

 U.S. Fish and Wildlife Service. 2005. Colorado River. 
 

 Upper Colorado River Basin Recovery Implementation Program. 2005. Program library 
 

 Upper Colorado River Basin Recovery Implementation Program. 2005. Yampa programmatic biological opinion: Appendix A. Cooperative agreement. 
 

 Upper Colorado River Basin Recovery Implementation Program. 2005. Programmatic biological opinion on the management plan for endangered fishes in the Yampa River basin. Final. 
 

 Upper Colorado River Basin Recovery Implementation Program. 2005. Upper Colorado River Basin Recovery Implementation Program meeting archives. 
 

 Upper Colorado River Basin Recovery Implementation Program. 2005. Yampa programmatic biological opinion: Appendix B. Technical memorada from Colorado and Wyoming concerning quantification of current and future depletions from the Yampa River basin. 
 

 Upper Colorado River Basin Recovery Implementation Program. 2005. Yampa programmatic biological opinion: Appendix C. Hydrology figures and tables. 
 

 Upper Colorado River Basin Recovery Implementation Program. 2005. Yampa programmatic biological opinion: Appendix D. Accounting for consumptive use. 
 

 Upper Colorado River Basin Recovery Implementation Program. 2005. Yampa programmatic biological opinion: Appendix E. Sample recovery agreement. 
 

 Valdez, R.A. 2005. Non-native fish control strategy for Grand Canyon, Arizona. Page 142-150 in Proceedings of two symposia: restoring native fish to the lower Colorado River: interaction of native and non-native fishes. July 13-14, 1999. Las Vegas, Nevada. U.S. Fish and Wildlife Service, Southwest Region, Albuquerque, New Mexico.
 

 Ward, D. 2005. Collection of Asian tapeworm (Bothriocephalus acheilognathi) from the Yampa River, Colorado. Western North American Naturalist 65(3):403-404.
 

 Ward, D.L. and W. Persons. 2005. Little Colorado River fish monitoring, 2004 annual report. Submitted to Grand Canyon Monitoring and Research Center. Cooperative agreement 02WRAG0030. Grand Canyon Monitoring and Research Center, Flagstaff, Arizona.
 

 Wydoski, R.S. 2005. Habitat enhancements for native Colorado fishes. Page 21-55 in Proceedings of two symposia: restoring native fish to the lower Colorado River: interaction of native and non-native fishes. July 13-14, 1999. Las Vegas, Nevada. U.S. Fish and Wildlife Service, Southwest Region, Albuquerque, New Mexico.
 

 Stone, D.M. and O.T. Gorman. In press. Ontogenesis of endangered humpback chub (Gila cypha) in the Little Colorado River, Arizona. American Midland Naturalist.
 

 Brussard, P.F., D.S. Dobkin, L.C. Ball, et.al. No date. Great Basin Mohave Desert region. 
 

 Colorado River Fisheries Program.  No date. Species list for upper Colorado River Basin. Colorado River Fisheries Program. 2 pages.
 

 Colorado River Wildlife Council. No date. Recommendations on prohibited and threatened species of the Colorado River drainage. Colorado River Wildlife Council.
 

 Glen Canyon Environmental Studies. No date. Jurisdictional flowchart with regard to potential impacts to the Little Colorado River basin, and the Gila cypha habitat. Glen Canyon Environmental Studies.
 

 Kaeding, L.R. No date. Evidence to support the belief that introduced fishes have negatively affected the endangered Colorado River fishes. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction, Colorado. 4 pages.
 

 O'Shea, T. and C. Ramotnik. No date. Curation of biological survey collection in Albuquerque. 
 

 Rosenfeld, M.J. No date. Genetic analysis of the Colorado River Gila: non-fatal sampling, cell culture, chromosomal analysis and electrophoresis. University of Utah, Department of Biology, Salt Lake City.
 

 Rosenfeld, M.J. No date. Morphological, biochemical and cytogenetic studies of upper Colorado River Gila. Research summary. University of Utah, Salt Lake City. 4 pages.
 

 Schwinn, M.A. and A.W. Heggen. No date. Survey of endangered and unique wildlife of the Price Resource Area and a portion of the San Rafael Resource Area. Contract No. YA-512- CT9-119. Utah Department of Natural Resources. 88 pages.
 

 Stevens, L.E. No date. Ecological characterization of the wetlands of the Colorado Plateau. Lawrence E. Stevens, Flagstaff, Arizona. 291 pages.
 

 Tremble, M. No date. Ecological impacts to the Little Colorado River humpback chub habitat. 
 

 U.S. Fish and Wildlife Service. No date. Conservation agreement and strategy for Virgin spinedace (Lepidomeda mollispinis mollispinis). 
 

 U.S. Fish and Wildlife Service. No date. Alternative methods of preserving and recovering three endangered Colorado River fishes, and identification of significant environmental issues. U.S. Fish and Wildlife Service. 7 pages.
 

 U.S. Geological Survey MESC. No date. Biological survey collection, Museum of Southwestern Biology. 
 

 U.S. Geological Survey NPWRC. No date. Status of listed species and recovery plan development: Colorado River fishes, Arizona. 
 

 U.S. Geological Survey NPWRC. No date. Status of listed species and recovery plan development: Colorado River fishes, Colorado. 
 

 U.S. Geological Survey NPWRC. No date. Status of listed species and recovery plan development: Colorado River fishes, Utah. 
 

 U.S. Geological Survey NPWRC. No date. Status of listed species and recovery plan development: fishes. 
 

 U.S. Geological Survey NPWRC. No date. Status of listed species and recovery plan development: Arizona. 
 

 Upper Colorado River Basin Recovery Implementation Program. No date. Upper Colorado River Basin Recovery Implementation Program. 
 

 Wydoski, R.S. and J. Hamill. No date. Evolution of recovery programs for upper Colorado River fishes. U.S. Fish and Wildlife Service, Denver, Colorado. 26 pages.
 

 Xenopoulos, M.A., D.M. Lodge, J. Alcamo, M. Märker, K. Schulze and D.P. VanVuuren. No date. Scenarios of freshwater fish extinctions from climate change and water withdrawal. Global Change Biology.