7166

• UCREFRP Catalog Number: 7166
• Author: Miller, W. H., et al.
• Title: Yampa River Fishes Study
• USFW Year: 1982.
• USFW - Doc Type: Final Report.
• Copyright Material: NO

LIST OF FIGURES
Page
1. The hydrologic subregions of the upper Colorado
River basin ........................................... 3
2. Study area and sampling strata of the Yampa and Green
rivers, 1981 ........................................ 7
Habitat types of intensively sampled areas .............. 9
4. Temporal sampling design ................................ 10
5. Seasonal discharge of the Yampa River, 1980-81.......... 19
6. Relative distribution of eight major habitats, Yampa and
Green rivers, 1981 ................................... 23
7, Total young-of-the-year (Y), juvenile (J), and adult (A)
fishes by strata, Green and Yampa rivers, Colorado
and Utah, standardized sampling programs, 1981....... 32
8. Total number of young-of-the-year (Y), juvenile (J),
and.adult (A) fishes collected by habitat types,
Green, Yampa, and Little Snake rivers, Colorado
and Utah, standardized sampling program, 1981........ 44
9. Number of species collected in nine habitat types,
Green (G), Yampa (Y) and Little Snake (LS) rivers,
Colorado and Utah, 1981.......... 45
10. Adult Colorado squawfish ( ? 400 mm TL), including
recaptures, captured during standardized sampling,
Green and Yampa rivers, 1981 ......................... 48
11. Depth and velocity at point of capture, adult Colorado
squawf ish ( > 400 mm TL), from six habitats,
Green River, 1981. All collections, n=16............ 54
12. Depth and velocity at point of capture, adult Colorado
squawfish ( > 400 mm TL) from six habitats,
Yampa River, Colorado, 1981. All collections n=70... 55
?3. Movement of radiotagged Colorado squawfish, Yampa and
Green River, 1981 (Mouth of the Yampa River = 0.
The Yampa River enters the Green River at km 552.)... 58
14. Map of stream section Yampa River at RM 16.5 (km 26.4).. 63
15. Sonar transects, Yampa River section at river
mile 16.5 (km 26.4), 5 July 1981 ..................... 67
16. Precaudal, vertebrae and gill rakers of Gila spp. (after
Smith et al. 1979). Histograms indicate number of
specimens examined from the Green River, 1980-81..... 73
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