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

0
LIST OF FIGURES
Figure Page
1 Map of Yampa River study area. River mile (RMI) distances
begin at the confluence with the Green River. . . . . . . . . . 2
2a Cross-section of solid ice and associated water depth and
ice thickness measurements . . . . . . . . . . . . . . . . . . . . 7
• 2b Cross-section of solid ice, frazil ice, and associated
water depth and ice thickness measurements. . . . . . . . . . . . 7
3a Locations of fish in the Government Bridge study area
during each sampling trip, Oct 1 - Mar 21, 1986-1987. . . . . . . 12
3b Locations of fish in the Maybell study area during
each sampling trip, Oct i - Mar 21,1986-1987. . . . . . . . . . . 12
4 Map of backwater type habitat during the winter at river
mile 95.7 within the Government Bridge study area, Yampa
River. This area was used by fish A07, A08, A10, and All. . . . 15
5 Map of embayment type habitat during the winter at river
mile 81.1 within the Maybell study area, Yampa River.
This area was used by fish A09, B08, B09, and Bil. . . . . . . . . 16
6 Map of run type habitat during the winter at river mile
81.4 within the Maybell study area, Yampa River.
This area was used by fish A09, B08, 1310, and B11. . . . . . . . 22
7 Map of eddy and shoreline type habitats during the winter
at river mile 76.3 within the Maybell study area, Yampa
River. This area was used by fish A07 . . . . . . . . . . . . . . . 24
0
8 Depths used by 10 radiotagged adult Colorado squawfish
on the Yampa River from 0600-1200 hours, Dec 1 - Mar 21,
1986-1987. Measurements taken at fish location during
24 hour sampling . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9 Depths 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 . . . . . . . . . . . . . . . . . . . . . . . . 30
r 10 Depths used by 10 radiotagged adult Colorado squawfish
on the Yampa River from 1800-2400 hours, Dec 1 - Mar 21,
1986-1987. Measurements taken at fish location during
24 hour sampling . . . . . . . . . . . . . . . . . . . . . . . . . . 31
0
iv
0