7404

• UCREFRP Catalog Number: 7404
• Author: Masslich, W. J. and A. Wasowicz.
• Title: Interim Report - 1990 Overwinter Survival of Age-0 Colorado Squawfish in the Green and Colorado Rivers.
• USFW Year: 1990.
• USFW - Doc Type: Logan, Utah.
• Copyright Material: NO

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LIST of r~GUREs
Figure 1. River reaches sampled during post-larval, age-0 Colorado squawfish monitoring
(ISMP, USFWS 1987) ........................................... 2
Figure 2. Length-frequency histograms for YOY Colorado squawfish for the 1987 year class
during fail and spring sampling in Reach 1 and Reach 2 ................. 13
Figure 3. Length-frequency histograms for YOY Colorado squawfish for the 1988 year class
during fall and spring sampling in Reach 1 and Reach 2 ................. 14
Figure 4. Length-frequency histograms for YOY Colorado squawfish for the 1989 year class
during fall and spring sampling in Reach 1 and Reach 3 ................. 15
Figure 5. Length-frequency histogram for YOY Colorado squawfish for the 1990 year class
during fall sampling in Reach 3 .................................... 1G
Figure 6. Distnbution of YOY Colorado squawfish captured in backwaters on the lower Green
River, RM 50 to RM 0, during Fall 1987 and Spring 1988 . .............. 17
Figure 7. Distribution of YOY Colorado squawfish captured in backwaters on the lower Green
River, RM 50 to RM 0, during Fall 1988 and Spring 1989 . .............. 18
Figure 8. Distnbution of YOY Colorado squawfish captured in backwaters in Reach 3 (RMI
120-0) on the lower Green River, during Fall 19$9 and Spring 1990........ 19
Figure 9. Distribution of YOY Colorado squawfish captured in backwaters in Reach 3 (RMI
120-0) on the lower Green River, during fall 1990 ...................... 20
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