9374

• UCREFRP Catalog Number: 9374
• Author: Valdez, R. A. and B. R. Cowdell.
• Title: Effects of Flow Regulation and Ice Processes on Overwinter Nursery Habitat of Age-0 Colorado Pikeminnow in the Green River Below Flaming Gorge Dam.
• USFW Year: 1999.
• USFW - Doc Type: FG-10,
• Copyright Material: NO

Table 3.

Summary of overwinter habitat suitability of 14 backwaters sampled during winter
of 1993-94. CH = chute channel, SC = scour channel, ER = eddy return channel.

Site # (River Mile) Suitable Habitat Reason Not Suitable
Backwater Channel Type Through Winter
Reach 1
1 - CH (534.2) No Backwater became a flow-through from
unknown channel morphology changes
2 - CH (530.5) Yes
3 - SC (528.6) No Ice jams caused damming and flow-
through
4 - CH (526.6) No Ice jams caused damming and flow-
through
Reach 2
5 - ER (508.8) No Average water depth <0.3 m; caused by
collapsing ice lenses
6 - CH (506.4) Yes
7 - SC (506.4) Yes
8 - CH (479.8) Yes
9 - CH (478.2) Yes
10 - CH (475.5) No Ice jams caused damming and flow-
through
11 - CH (471.4) Yes
12 - SC (470.6) No Backwater became a flow-through from
unknown channel morphology changes
Reach 3
13 - CH (415.6) Yes
14 - CH (411.6) No Ice jam caused damming and flow-through

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