8064

• UCREFRP Catalog Number: 8064
• Author: McAda, C. W., et al.
• Title: Interagency Standardized Monitoring Program
• USFW Year: 1997.
• USFW - Doc Type: Summary of Results, 1996 - Annual Report.
• Copyright Material: NO

Table B-1.-Compazison of mean catch per effort (CPE; Colorado squawfish collected per hour of
electrofishing) calculated using only captured Colorado squawfish versus using both captured and
observed Colorado squawfish for the river reaches sampled during subadult-adult Colorado squawfish
monitoring, 1996.
Colorado Squawfish/Hour (CPE) Total
- l
C
d
ora
o
o
Caught Only Caught+Observed squawfish Total
Ri
/ le
Sam Hours
•
ver p
Reach Mean SEM° Mean. SEM Observed Caught Size Shocked

Green
1 1.8 0.7 4.6 0.8 11 9 4 4.4
2 2.1 0.6 3.1 0.8 10 25 8 11.2
3 3.1 0.6 4.2 0.9 11 33 8 10.2
4 4.7 1.1 5.4 1.0 9 52 9 13.0
5 2.4 1.2 3.1 1.2 7 28 8 11.0
Ab 0.9 0.3 1.7 0.5 8 9 8 9.6
All` 3.0 0.4 4.0 0.4 48 147 37 49.8
Combinedd 2.6 0.4 3.6 0.4 Sb 156 45 59.3
Colorado
6 0.5 0.3 0.6 0.3 1 7 8 10.8
7 0.6 0.3 1.0 0.4 3 5 8 8.9
8 2.1 0.4 3.2 0.5 14 28 8 13.0
Bb 1.3 0.5 1.9 0.7 5 11 4 8.2
All 1.1 0.2 1.6 0.3 18 40 24 32.7
Combinedd 1.1 0.2 1.7 0.3 23 51 28 40.8
Yampa
9 1.1 0.3 1.6 0.2 4 9 4 8.1
10 0.6 0.3 1.1 0.3 4 5 4 7.8
11 0.0 0.0 0.3 0.3 1 0 2 3.6
All 0.7 0.2 1.1 0.2 9 14 10 19.6
White
12 1.8 0.4 2.2 0.6 3 13 4 6.5
13 2.3 0.3 2.9 0.4 7 26 8 11.4
• All 2.1 0.3 2.7 0.4 10 39 12 17.9
• °Standazd Error of the Mean.
bExtra sampling reaches: A =Green River, RM 215-230; B =Colorado river, RM 15-25.
`All ISMP sampling reaches within each river; extra reaches not included.
dAll sampling within the river, ISMP and extra reaches combined.
B-1