7055

• UCREFRP Catalog Number: 7055
• Author: Archer, D. L., L. R. Kaeding and B. D. Burdick.
• Title: A Study of the Endangered Fishes of the Upper Colorado River.
• USFW Year: 1985.
• USFW - Doc Type: Grand Junction, Colorado.
• Copyright Material: NO

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LIST OF TABLES (Continued)

Tabl e Paqe

25. Date and river mile of radiotagged Colorado squawfishlocated
during the 1982 field season. 93

26. Date and river mile of radiotagged Colorado squawfish located
during the 1983 field season. 99

27. Date and river mile of radiotagged Colorado squawfish located
during the 1984 field season. 103

28. Sample location, sample date, total number, and size range of
larval Colorado squawfish collected by fine-mesh hand seines
from the Colorado River, July- August, 1982. An additional 172
samples (86') contained no Colorado squawfish 105

29. Sample location, sample date, size range, and total number
larval Colorado squawfish collected by fine-mesh hand nets
the Colorado River, July-October, 1983. An additional 216
samples (94') contained no Colorado squawfish.

of
from
106
of
from
107

30. Sample location, sample date, size range, and total number
larval Colorado squawfish collected by fine-mesh hand nets
the Colorado River, July-October, 1984. An additional 181
samples (91') contained no Colorado squawfish.

31. Chi-square analysis of larval samples that contained at least one
Colorado squawfish vs those that contained none. To compensate
for differences in spawning dates among years, all larval samples
taken prior to the collection of the first larval squawfish for
that year are excluded from the analysis 108

32. Mean catch per unit effort (CPUE) for age-O Colorado squawfish
(CS) collected by 6-mm-mesh seines from backwaters in la-mile
reaches of the Colorado River, October, 1982. 109
33. Mean catch per unit effort (CPUE) for age-O Colorado squawfish
(CS) collected by 3-mm-mesh seines from backwaters in 10-mile
reaches of the Colorado River, September and October, 1983. 110
34. Mean catch per unit effort (CPUE) for age-O Colorado squawfish
(CS) collected by 3-mm-mesh seines from backwaters in 10-mile
reaches of the Colorado River, August, September and October, 1984. 111

35. Chi-square analysis among river reaches of post-larval samples
taken in backwaters that contained at least one Colorado
squawfish vs those that contained none. 113

36. Chi-square analysis among years (1982-1984) of post-larval
samples taken in backwaters that contained at least one
Colorado squawfish vs those that contained none. 114
v