7178

• UCREFRP Catalog Number: 7178
• Author: Miller, W. H., et al.
• Title: Windy-Gap Fishes Study
• USFW Year: 1984.
• USFW - Doc Type: Second Annual Report.
• Copyright Material: NO

LIST OF FIGURES
Page
1. Map of the study area ................................... 4
2. Map of the Colorado River study area .................... .~
3. Movement of radiotagged Colorado squawfish of adult size
14
in the Colorado River, 1982 and 1983 ..................
4. Relative abundance of age-0 Colorado squawfish collected
by 6-mm-mesh seine from hackwaters in 10-mile reaches
of .the Colorado River, TJtah and Colorado, September,
1982 ................. ................. ........... 15
5. Movement of ten radiotagged humpback chub in the Black
Rocks area of the Colorado River, Colorado, April-July,
1983 .................................................. 17
6. Seasonal changes in the frequency of occurrence of pectoral
fin tubercles, tubercles on the body of fish, and
expressable gametes for male and female roundtail chub
and humpback chub of mature size collected from the Black
Rocks area of the Colorado River, Colorado 1983....... 19
7. Seasonal changes in the relative condition (K ), gonad-
osomatic index (GSI), and the ratio of meannovurn
diameter to GSI for male and female roundtail chubs and
humpback chubs of mature size collected from the Black
Rocks area of the Colorado River, Colorado, 1983...... 21
8. Migration of 8 Colorado squawfish, Yampa River, 1983.... 24
9. Migration of 7 Colorado squawf ish, Green River, 1981-
1983 .................................................. 25
10. Relative abundance of age-0 Colorado squawfish collected
by 3-mm-mesh seine from backwaters in 10-mile
reaches of the Colorado River, TJtah and Colorado,
S eptember (above) and October (below), 1983......... 30
11. Colorado squawf ish young-of-the-year surveys, Green
River, 1979-82 ........................................ 32
12. Colorado squawf ish young-of-the-year survey, Green
River, 1983 ........................................... 33

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