8206

• UCREFRP Catalog Number: 8206
• 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 Mounatin Canyon. Final Report.
• USFW Year: 1997.
• USFW - Doc Type: Fort Collins, Colorado.
• Copyright Material: NO

Table 3. Habitat use criteria for depth.
Use criteria for all habitats 1996 and 1997 data.
Total depth
Day Depth S.I. Night
(ft.)

Depth
(ft.)

S.I.
n=82 1.4 0.0 n=21 1.0 0.0
2.6 0.125 1.2 0.25
3.0 0.25 1.4 0.50
3.8 0.5 1.6 1.00
4.2 1.0 4.2 1.00
>6.0 1.0 4.21 0.50
4.6 0.25
5.0 0.00
Table 4. Habitat use criteria for bottom velocity.
Use criteria for all habitats 1996 and 1997 data.
Bottom velocity
Day Velocity S.I. Night Velocity S.I.
(ft./s) (ft./s)
n=47 0.0 0.25 n=20 0.0 0.25
0.09 0.5 0.01 0.50
0.1 1.0 0.1 1.00
0.8 1.0 1.3 1.00
1.2 0.5 1.6 0.50
1.3 0.25 1.9 0.25
Table 5. Habitat use criteria for mean column velocity.
Use criteria for all habitats 1996 and 1997 data.
Mean column velocity
Day Velocity S.I. Night Velocity S.I.
(ftJs) (ftis)
n=54 0.0 0.125 n=20 0.0 0.25
0.1 0.25 0.01 0.50
0.2 0.50 0.1 1.00
0.7 1.00 2.2 1.00
1.6 1.00 3.0 0.50
1.9 0.50 3.6 0.25
2.0 0.25 4.2 0.00
2.1 0.125
2.2 0.0
Final Report - Colorado squawfish habitat Page 94
Miller Ecological Consultants, Inc. December 17, 1997