9485

• UCREFRP Catalog Number: 9485
• Author: McAda, C. W., J. W. Bates, J. S. Cranney, T. E. Chart, M. A. Trammell and W. R. Elblad.
• Title: Interagency Standardized Monitoring Program Summary of Results, 1993.
• USFW Year: 1994.
• USFW - Doc Type: Denver.
• Copyright Material: NO

Table B-1.-Comparison of mean catch per effort (CPE; Colorado squawfish collected per hour of
electrofishing) calculated using only captured Colorado squash versus using both captured and
observed Colorado squash for the 13 river reaches sampled during subadult-adult Colorado squash
monitoring, 1993.
Colorado Squawfish/Hour (CPE) Total
-------------------------------- Colorado
Caught Only Caught+Observed squawfish Total
River/ --------------- -------------- --------------- Sample Hours
Reach Mean SEMa Mean SEM Observed Caught Size Shocked
Green
1 1.31 0.77 1.49 0.71 1 7 4 4.7
2 0.97 0.33 1.27 0.35 4 12 8 12.5
3 0.84 0.33 1.33 0.54 6 11 8 12.0
4 2.92 0.40 3.72 0.44 9 32 8 11.0
5 1.80 0.33 2.13 0.31 4 20 8 11.0
Allb 1.60 0.22 2.04 0.26 24 82 36 51.2
Colorado
6 0.69 0.23 0.87 0.26 2 7 8 10.3
7 0.25 0.16 0.25 0.16 0 3 8 10.3
8 1.01 0.22 1.33 0.29 6 14 8 13.7
All 0.65 0.13 0.82 0.17 8 24 24 34.3
Yampa
9 1.23 0.41 1.58 0.50 3 10 4 8.5
10 0.14 0.10 0.41 0.10 2 1 2 7.3
11 1.11 0.38 1.11 0.38 0 4 2 3.6
All 0.93 0.28 1.17 0.32 5 15 8 19.4
White
12 1.21 0.08 1.37 0.19 1 7 2 5.8
13 1.05 0.48 1.90 0.51 10 15 8 12.8
All 1.08 0.38 1.80 0.42 11 22 10 18.6
aStandard error of the mean.
bAll ISMP sampling reaches within the river.
B-1