8158

• UCREFRP Catalog Number: 8158
• Author: Osmundson, D. B.
• Title: Longitudinal Variation in Fish Community Structure and Water Temperature in the Upper Colorado River; Final Report.
• USFW Year: 1999.
• USFW - Doc Type: Grand Junction, Colorado.
• Copyright Material: NO

0.8
0.6
0.4
0.2
0
0.8
0.6
E
0.4
Ir
0.2
Fish 100-300 mm TL
Strata 1-6
I
Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa
94 95 94 95 94 95 94 95 94 95 94 95
1 2 3 Period 4 5 6
Stratum
Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa Sp Fa
94 95 94 95 94 95 94 95 94 95 94 95
1 2 3 Period 4 5 6
Stratum
Figure 7. Electrofishing catch rates of fish suitable as forage (those 100-300 mm long,
excluding ictalurids) for adult Colorado pikeminnow by study stratum (1-6) and sampling
period. Upper graph de icts mean total catch rate of all fish groups combined (error bars
represent mean +/- 1 S9; lower graph provides mean catch rates by fish group.
GBH SUCKER ®FM SUCKER ®SQUAWFISH ®WS & HYBRIDS ®RT CHUB
BSALMONIDS ®DACE ®CARP ®Other NN
16