7394

• UCREFRP Catalog Number: 7394
• Author: Grabowski, S. J. and S. D. Hiebert.
• Title: Some Aspects of Trophic Interactions in Selected Backwaters and the Main Channel of the Green River, Utah 1987 - 1988.
• USFW Year: 1989.
• USFW - Doc Type: Denver, Colorado.
• Copyright Material: NO

TABLES

Paqe

Table I. - Surface area and volumes of backwaters
sampled at Island Park, Jensen, and Ouray on
the Green River, Utah, in 1988. . . . . .

Table 2. - Zooplankton taxa collected from the main
river and backwaters at Island Park,
Jensen, and Ouray from June 2 to November 19, 1987,
and from July 12 to October 13, 1988. . . 55

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Table 3. - Benthic macroinvertebrates collected in the
Green River and selected backwaters at Island
Park, Jensen, and Ouray in 1987 and 1988.

Table 4. - Percent abundance of chironomid larvae,
oligochaetes, and ceratopogonid larvae at
main river and backwater sites in the
Green River, Utah, for 1987 and 1988. . .

Table 5. - Food items encountered and percent frequency
of occurrence of these food items in stomachs
of 3 larval Colorado squawfish collected from
backwaters at Island Park, Jensen, and Ouray
during 1988 . . . . . . . . . . . . . . . . .

61

65

74

Table 6. - Food items encountered and percent frequency of
occurrence of these food items in stomachs of
juvenile Colorado squawfish collected from
backwaters at Island Park, Jensen, and Ouray
during 1988 . . . . . . . . . . . . . . . . . 76

Table 7. - Stomach contents of juvenile Colorado squawfish
from Green River backwaters in 1987 . . . . . .

77, 78

Table 8. - Food items encountered and percent frequency of
occurrence of these food items in stomachs of 44
juvenile Colorado squawfish collected from
backwaters at Island Park, Jensen, and Ouray
during 1988 . . . . . . . . . . . . . . . . . 80

Table 9. - Stomach contents of juvenile Colorado squawfish
from Green River backwaters in 1988 . . . . . . . 81

Table 10. - Average percent frequency of occurrence of major
food items in stomachs of several fish species
collected in Green River backwaters in 1987. . . 96

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