9591

• UCREFRP Catalog Number: 9591
• Author: Nesler, T. P.
• Title: Interactions Between Endangered Fishes and Introduced Gamefishs in the Colorado River, Colorado, 1986-1991.
• USFW Year: 2002.
• USFW - Doc Type: 91-29,
• Copyright Material: NO

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Table 1. Total number of all fish collected by species by year via standardized fall seine collection in the
Colorado River, 1986-1991.

No of Fish Species Collected by Year
Species 1986 1987 1988 1989 1990 199 1

Bluehead sucker 350 1 1 14 0 0 29
Flannelmouth sucker 7 22 12 4 1 8
Gila species 77 247 97 6 0 109
Colo. Pikeminnow 7 13 1 0 1 1
Speckled dace 14 1 9 4 0 0 20
Total 582 302 128 10 2 167

Red shiner 1 12 687 4,046 4,043 3 ,009 5 ,662
Fathead minnow 1 ,408 2,208 17,726 2,999 5 ,97 1 8 , 383
Sand shiner 43 1 1 1 1 ,452 109 8 1 9 2, 057
Total 1 ,563 3 ,006 23 ,224 7, 1 5 1 9,799 1 6, 102

Common carp 8 5 55 5 1 3 19
Mosquitofish 2 0 3 0 729 93
Plains killifish 15 0 1 4 9 2
White sucker 1 0 1 3 0 3 9
Total 26 5 72 9 754 123

Black bullhead 1 0 103 27 3 35
Channel catfish 0 0 19 9 25 4
Green sunfish 35 4 1 1 10 28 68 62
Largemouth bass 1 63 24 1 1 3 2
Bluegi11/Crappie 0 0/6 4/0 0 0 0
Total 37 1 10 260 75 99 103
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