7202

• UCREFRP Catalog Number: 7202
• Author: Osmundson, D. B. and L. R. Kaeding.
• Title: Studies of Colorado Squawfish and Razorback Sucker Use of the '15-Mile Reach' of the Upper Colorado River as Part of Conservation Measures for the Green Mountain and Ruedi Reservoir Water Sales
• USFW Year: 1989.
• USFW - Doc Type: Final Report.
• Copyright Material: NO

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1. Map of the general study area ................................... 3
2. Electrofishing catch per effort for Colorado squawfish
and razorback sucker in three contiguous river reaches
during spring, 1986, 1987 and 1988 .............................. 11
3. Movement of 11 radio-tagged Colorado squawfish during
1982 ............................................................ 14
4. Movement of one radio-tagged Colorado squawfish during
1983 ............................................................ 15
5. Movement of four radio-tagged Colorado squawfish during
1985 ............................................................ 15
6. Movement of five Colorado squawfish and one razorback
sucker radio tagged in 1986 ..................................... 16
7. Movement of six Colorado squawfish and two razorback
sucker radio tagged in 1987 ..................................... 18
8. Movement of eight Colorado squawfish radio-tagged in
1988 ............................................................ 20
9. Movement of 19 Colorado squawfish and three razorback
suckers radio tagged at various times during 1986, 1987
and 1988 ........................................................ 23
10. Capture sites of adult, larval and young-of-year Colorado
squawfish during 1986, 1987 and 1988 ............................ 25
11. Catch rates of larval Colorado squawfish for the 18-mile
and lower-Gunnison reaches, and young-of-the-year for the
18-mile reach during 1986, 1987 and 1988 ........................ 26
12. Main-channel temperatures at Palisade (RM 183.2) and
Walker Wildlife Area (RM 164.8) on the Colorado River,
2 May - 30 October 1986 ......................................... 27
13. Mean-daily, main-channel temperatures at Walker Wildlife
Area (RM 164.8) during 1986, 1987 and 1988 ...................... 29
14. Catch rates (mean no. fish/100 m2) of fish species
collected during young-of-the-year sampling in two
adjacent Colorado River reaches, 1986, 1987 and 1988 ............ 32
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