8188

• UCREFRP Catalog Number: 8188
• Author: Muth, R. T., et al.
• Title: Flow and Temperature Recommendations for Endangered Fishes in the Green River Downstream of Flaming Forge Dam.
• USFW Year: 2000.
• USFW - Doc Type: \
• Copyright Material: NO

Final Report

Table 4.2.-Continued.

4-9

September 2000

Family and
Common Name

Scientific
Name

Present Distribution in the Green
River System and Comments3

Cyprinidae (Cont.)

Creek chub

Semotilus atromaculatus

Catostomidae

Utah sucker

Catostomus ardens

White sucker

Catostomus commersoni

Ictaluridae
Black bullheadb

Ameiurus melasb

Channel catfishb

lctalurus punctatusb

Escocidae

Northern pike

Esox lucius

Mostly incidental to rare with a very sporadic
distribution. It prefers small streams with clear, cool
water, moderate to high gradients, gravel substrate, and
well-defined riffles and pools with abundant cover.

Rare, occurs primarily in the Strawberry and Duchesne
Rivers. It prefers reservoirs or quiet waters in rivers
with cobble or gravel substrates and emergent
vegetation.

Rare to common in reaches of the Yampa River and in
upper and middle sections of the Green River; abundant
in Flaming Gorge Reservoir. It is a habitat generalist
found in lakes, reservoirs, streams, and rivers. In
streams and rivers, it prefers deep riffles, pools, and
shallow runs over gravel or cobble substrates.

Sporadic distribution in middle and lower sections of
the Green, Yampa, Duchesne, and White Rivers. It is
incidental to rare in main-channel habitats; common to
abundant in inundated floodplain habitat adjacent to the
middle Green River. It is found in turbid backwaters,
seasonally flooded habitats, impoundments, and
low-gradient river reaches with muddy bottoms.

Widespread, common to abundant in middle and lower
sections of larger rivers. Its optimum riverine habitat
has warm water and a diversity of velocities, depths,
and structural features that provide cover and feeding
areas. In the Green and Yampa Rivers, it is most
abundant in rocky, turbulent, high-gradient canyon
habitats.

Occurs in several rivers and impoundments but is
infrequently collected, except in reaches of the Yampa
River and middle Green River, where it is often caught
during spring sampling for adult Colorado pikeminnow
and razorback suckers. It primarily inhabits vegetated
ponds, marshes, larger lakes, and deep pools, eddies,
mouths of tributaries, and seasonally flooded habitats
of larl!;er rivers.