8243

• UCREFRP Catalog Number: 8243
• Author: Valdez, R. A. and R. J. Ryel.
• Title: Developing Recovery Goals For the Four Endangered Colorado River Fishes
• USFW Year: 1999.
• USFW - Doc Type: Scope of Work and Cost Estimate.
• Copyright Material: NO

Region 6, Denver. Colorado.
Utah Division of Wildlife Resources. 1995. Gila spp. Investigations: Green and Colorado rivers,
Desolation and Gray Canyons: 1985-1986; 1989-1992. Aquatic Wildlife Section, Salt Lake
City. Utah. 38 pp.
Valdez. R.A.. and G.e. Clemmer. 1982. Life history and prospects for recovery of the humpback
and bony tail chub. Pages 109-119 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.
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. Final report to the Bureau of Rec1amation,
Salt Lake City, Utah. Contract No. 0-CS-40-09110. BIO/WEST Report No. TR-250-08.
BIO/WEST. Inc., Logan. ~tah.
Valdez. R.A.. and R.J. Ryel. 1997. Life history and ecology of the humpback chub in the Colorado
River in Grand Canyon. Arizona. Pages 3-31 in Proceedings of the Third Biennial
Conference on the Colorado Plateau. National Park Service, Denver, Colorado.
Vanicek. C.D. 1967. Ecological studies of native Green River fishes below Flaming Gorge Dam,
1964-1966. Ph.D. Dissertation. Utah State University, Logan. 125 pp.
Williamson, J.H. and R.S. Wydoski. 1994. Genetics management guidelines. - Recovery
Implementation Program for Endangered Fishes in the Upper Colorado River Basin. U.S.
Fish and Wildlife Service. Denver. Colorado. 40 pp.
Wydoski. R.S. 1994. Coordinated hatchery facility plan: need for captive-reared endangered fishes
and propagation facilities. Recovery Implementation Program for Endangered Fishes in the
Upper Colorado River Basin. U.S. Fish and Wildlife Service, Denver, Colorado. 133 pp.

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