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

September 2000

3.15 Channel planform types in the Green River downstream
of Flaming Gorge Dam. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

3.16 Relationship between backwater habitat area and flow at selected sites
in Reaches 2 and 3 of the Green River in 1987 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

3.17 Amount of backwater habitat available in 1987, 1993, and 1996 at Jensen,
Ouray, and Mineral Bottom on the Green River . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

3.18 Relationships between flow and floodplain habitat inundation in Reaches 2
and 3 of the Green River . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49

4.1 Present distribution of adult Colorado pikeminnow in the Green River system. . . . . . 4-16

4.2 Conceptual life-history model of Colorado pikeminnow recruitment to various
developmental stages, and biotic and abiotic factors controlling recruitment. . . . . . . . 4-20

4.3 Abundance of juvenile and adult Colorado pikeminnow in the Green
River system, 1986-1997 ............................................... 4-34

4.4 Observed or predicted water temperatures for the Green River in lower Browns

Park, 1992-1995. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39

4.5 Locations of known or suspected razorback sucker spawning areas and the
distribution during 1992-1996 of larval razorback sucker captures in the

Green River system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56

4.6 Estimated annual spawning periods of razorback sucker and associated
main-stem flows and temperatures in the middle Green River, Utah
and Colorado, 1993-1996 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58

4.7 Estimated annual spawning periods of razorback sucker and associated
main-stem flows and temperatures in the lower Green River, Utah, 1993-1996 ..... 4-60

4.8 Razorback sucker spawning and larval razorback sucker captures as related
to regulated and unregulated flows in Reach 2 of the Green River in Utah
and Colorado, 1993-1996 '" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71

4.9 Present distribution of humpback chubs in the Upper Colorado River basin. . . . . . . . 4-82

4.10 Relationships between estimated peak spawning and hatching of humpback
chubs and maximum daily main-channel water temperatures in Westwater
Canyon, Colorado River, Utah ........................................... 4-85

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