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

32
Locati: Main le
H
c
FREQUENCY
Type: 24
hour
S
ample
42
8
vel morn
6
UTILIZATION
.
Total hours observed:
.

27.80 - ---------------------------------
Mean Velocity (feet/sec): 0.17
1.00
Variance: %109
25.02 Minimum Velocity: 0.0 0.30
Maximus Velocity: 0.9
22 24 Velocity Range: 0.95 0.80
13.46 0.70
16.68 O,fiO
.13.30 0.50
51.12 0.40
8.34 0.30
5.56 0.20
2.78 0.10
0.00 I I I I I I 1 I r 0.00
0 1 .2 .3 4 .5 .6 .7 .8 .9
velocity (ft/sec) .
•
•
•
•
•
Figure 12. Velocities used by 10 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. •
FREQUENC Y Location: Main Hole UTI LIZATION
velocity afternoon Sample Type: 24 hour
Total hours observed: 37.0
---------------------------------
1'00
Mean Velocity (feet/sec): 0.15

22
05 Variance: 0.07
0
30
. Minimum Velocity: 0.0 .

13
60 Maximum Velocity: 0.7
80
0
. Velocity Range: 0.75 .
17.15 - 0.70
14.70 - 0.60
12.25 - 0.50
3.80 - 0.40
7.35 - 0.30
4.30 - 0.20
2.45 0.10
-
0.00
0.00
0 1 .2 .3 .4 .5 .6 .7 .8 .9
velocity (ft/sec)
Figure 13. Velocities used by 10 radiotagged adult Colorado squawfish on the
Yampa River from 1200-1800 hours, Dec 1 - Mar 21, 1986-1987.
Measurements taken at fish location during 24 hour sampling.
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•
•
•
0