8220

• UCREFRP Catalog Number: 8220
• Author: Miller, W. J. and D. E. Rees.
• Title: Colorado Squawfish Habitat Use and Movement During Summer Low Flow in the Yampa River Upstream of Cross Mountain Canyon.
• USFW Year: 1996.
• USFW - Doc Type: Fort Collins, Colorado.
• Copyright Material: NO

Figure 8. Locations of Colorado squawfish #684 and mean daily discharge at the Yampa
River, Colorado.
Colorado Squawfish #684
1000
900
800
700
N
LM
600
U
h
500
R
c 400
300
200
100
0
--tr- Discharge
-¦-Fish # 684
i
I
i
r?.
rn m rn rn rn rn m rn rn rn 6i rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn? rn rn rn m
6 D' °' Di 6 ° =M M D+ a a n a n a a a a E. u 6 u 6 '6 '6 t,
D D D D D D D D D D D D D(D 0 d 4) 4) d) d 0 0 0 0 0 0 0 0 0 0
O M c0 O) Q ¢ ¢ ¢ ¢ Q Q Q ¢ ¢ Q fn (A f/J (n f? fn UJ (n (? fn
N N N N ? ? n O ? O O N N N M M O ? ? ? ? ? ? O M O O N 0 W N N N
N N N M
Date
Colorado Squawfish #40:6635 (CS663)
84
83
82
81
m
80
m
79
78
77
76
CS663 was the most actively moving fish observed during this study. CS663 was
captured by angling and implanted with a transmitter at RM 95.5 on 29 August 1996.
' During the next two months CS663 was located seven times by ground crews including
one 24 hour observation. CS663 periodically swam upstream until early October when it
' was located more than seven miles upstream from the point where it was originally
captured. By late October, CS663 had moved back downstream to a pool 0.5 river miles
' upstream from it's point of capture (Figures 9 and 10). During the course of this study,
CS663 traveled nearly 14 river miles. This fish was only located by ground crews in pool
habitats, however during the course of this study CS663 moved through numerous riffles,
' runs and one diversion, the Patrick Sweeney Diversion and other shallow riffles during
some of the lowest mean daily flows recorded during 1996 (Figure 10).
Draft Yampa River Radio Telemetry Report Page 16
' Miller Ecological Consultants, Inc. December 13, 1996