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

48
m
rc
3
0
z
w
3
W
a:
IL
1.0
0.9
o.e
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
SUBSTRATE - MAIN HOLE (LONG TERM)
NORMALIZED
Total hours: 167.7
Maximum frequency (hours): 97.3
CL : clanr --T Substrate
SI = sllt 2 CLSA
SA = sand 3 SISI
Gl : travel 1 SISA
CO : cobble 5 Sla
IM : boulder 6 SICO

8 SASA

It SACO
11 GISI
12 USA
13 GO
14 Go
G
16 COCL
17 COST
18 COSA
19 COGII
1 2 3 4 5 6 7 B 9 10 11 12 13 14 15 16 17 18 19
SUBSTRATE CODE
Figure 42. Substrates used by 10 radiotagged adult Colorado squawfish on the
Yampa River, Dec i - Mar 21, 1986-1987. Measurements taken at fish
location during 24 hour sampling.

0
0
0
0
n
rc
D
O
z
w
a
W
0=
W-
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
SUBSTRATE - MAIN HOLE (SHORT TERM)
NORMALIZED
Total hours: 102.3 Maximum frequency (hours): 34.7
Cade Substrate
a :elan T -Cm
SI = slit 2 CLSA
SA : sand 3 SISI
GI : travel 1 SISA
CO : cobble 5 SIGI
60 : boulder 6 SI(2I
7 SASI

9 SAU
if SACO
11 GISI
12 USA
777
G
IO
U
15 GINO
16 COC1.
17 CHI
18 COSA
to COGI
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
SUBSTRATE CODE
Figure 43. Substrates used by 10 radiotagged adult Colorado squawfish on the
Yampa River, Dec 1 - Mar 21, 1986-1987. Measurements taken at fish
location during 2.5 hour sampling.
17,
0
0
r1l
0