8188

• UCREFRP Catalog Number: 8188
• Author: Muth, R. T., et al.
• Title: Flow and Temperature Recommendations for Endangered Fishes in the Green River Downstream of Flaming Forge Dam.
• USFW Year: 2000.
• USFW - Doc Type: \
• Copyright Material: NO

Final Report

1-10

September 2000

Table 1.1.-Studies conducted in support of the 1992 Biological Opinion on Operation of
Flaming Gorge Dam.

BIOLOGICAL STUDIES

Study 1-Summer and Autumn Requirements of Age-O Colorado Squaw fish in the Green River

· Distribution, Habitat Use, and Growth ofY oung Colorado Squawfish in the Green River Basin (Tyus
and Haines 1991)

· Movements and Habitat Use of Young Colorado Squawfish in the Green River (Tyus 1991b)

Study 2-Winter Habitat and Flows for Adult and Young Colorado Squaw fish and Adult Razorback Sucker

· Winter Habitat Study of Endangered Fish - Green River: Wintertime Movement and Habitat of
Adult Colorado Squawfish and Razorback Suckers (Valdez and Masslich 1989)

· Winter Habitat Use of Young Colorado Squawfish (Tyus 1991b)

Study 3-Spring-Early Summer Flow Requirements of Colorado Squaw fish, Razorback Sucker, and Humpback Chub

· Potamodromy and Reproduction of Colorado Squawfish in the Green River Basin, Colorado and Utah

(Tyus 1990)

· Responses of Young Razorback Sucker and Colorado Squawfish to Water Flow and Light Intensity
(Paulin et al. 1989)

· Population Size and Status of Razorback Sucker in the Green River Basin, Utah and Colorado
(Lanigan and Tyus 1989)

· Spawning and Movements of Razorback Sucker, Xyrauchen texanus, in the Green River Basin of
Colorado and Utah (Tyus and Karp 1990)

Humpback Chub (Gila cypha) in the Yampa and Green Rivers, Dinosaur National Monument, with
Observations on Roundtail Chub (Gila robusta) and other Sympatric Species (Karp and Tyus 1990b)

· Age determination in Colorado Squawfish and Razorback Sucker (Minckley et al. 1991b)

Study 4-Fish Community Interactions of Endangered and Introduced Fishes

· Fish Associations and Environmental Variables in Age-O Colorado Squawfish Habitats, Green River,
Utah (Haines and Tyus 1990)

Behavioral Interactions between Young Colorado Squawfish and Six Fish Species (Karp and Tyus
1990a)

· Esox lucius (Esocidae) and Stizostedion vitreum (percidae) in the Green River Basin, Colorado and
Utah (Tyus and Beard 1990)

· Growth, Diet, and Status of Channel Catfish, Ictalurus punctatus, in the Green and Yampa Rivers,
Colorado and Utah (Tyus and Nikirk 1990)

· Migrating Mormon Crickets, Anabrus simplex (Orthoptera: Tettigoniidae), as Food for Stream Fishes
(Tyus and Minckley 1988)