7610

• UCREFRP Catalog Number: 7610
• Author: Wick, E. J. and J. A. Hawkins.
• Title: Colorado Squawfish Winter Habitat Study, Yampa River, Colorado, 1986-1987
• USFW Year: 1987.
• USFW - Doc Type: Final Report Year 1.
• Copyright Material: NO

30
FREOUENO Location: Main Hole UTI LIZATION
NORNI K Sample Type: 24 hour
Total hours observed: 42.6
1l.70 --------------------------------- 1.00
Mean Depth (feet): 2.36

10.53 Variance: 4.35
Minimum Depth: 0.8
94

9.36 Maximum Depth: 8.8
Depth Range: 8.1 0 80
8.19 - 0.70
7.02 - 0.60
5.86 - 0,80
4.68 - 0.40
3.5! - 0.30
2.34 - 0.20
1.11 -0.10

^ ^
0.00 0,04
0.00 1.06 2.12 3.17 4.23 5.29 635 7.40 8.46
DEPTH
I
4
0
i

Figure 8. Depths used by 18 radiotagged adult Colorado squawfish on the Yampa
River from 0600-1200 hours, Dec i - Mar 21, 1986-1987. Measurements
taken at fish location during 24 hour sampling.
Location: Main Hole UTIL IZATION
FREQUENCY
O
N Sample Type: 24 hour
O
AFTERN Total hours observed: 37.0
---------------
--

12,00- -
--------------- 1.00
Variance: 2.17
0'90
!0.$0
Minimum Depth: 0.6
Maximum Depth: 7.8
0.80

9.60 Depth Range: 7.3
0.70
$ .40
0.60
7.20
0.50
6.00
0.44
4.80
0.30
3.60
? o.20
2.4a
o.1a
1.2a

o.ac
D,OD 1.06
2.12 3.17 4.Y3 S,z? o.sa ?V ".,'
DEPTH
Figure 9. Depths used by 10 radiotagged adult Colorado squawfish on the Yampa
River from 1200-1800 hours, Dec i - Mar 21, 1986-1987. Measurements
taken at fish location during 24 hour sampling.
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