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 4.1.-Continued.

4-4

September 2000

Family and
Common Name

Scientific
Name

Principal Distribution in the Green
River System and Comments3

Catostomidae (Cont)

Flannelmouth sucker

Mountain sucker

Razorback sucker

Salmonidae

Cutthroat troutC

Mountain whitefish

Cottidae

Mottled sculpin

Catostomus latipinnis Widespread, common to abundant. It is found in warm-
water reaches of larger river channels. Adults typically
occupy pools and deeper runs, eddies, and shorelines.
Young occupy low-velocity shoreline or seasonally
flooded habitats.

Catostomus plafyrhynchus Incidental to rare in the Green River upstream of the
Yampa River confluence and in headwaters of the
Yampa and White Rivers; common in tributaries of the
Duchesne, Price, and San Rafael Rivers. It prefers cool,
clear streams with rocky substrates.

Xyrauchen texanus Federally listed as endangered. It is found in warm-
water reaches of the Green River and lower portions of
major tributaries; it primarily occurs in flat-water
sections of the middle Green River between the
Duchesne and Yampa Rivers. Adult habitat includes
runs, pools, eddies, and seasonally flooded lowlands.
Young presumably require nursery habitat with quiet,
warm, shallow water such as tributary mouths,
backwaters, and especially floodplain wetlands.

Oncorhynchus clarkic

Rare to common in certain upstream river reaches (e.g.,
Green River downstream of Flaming Gorge Dam;
stocked in tailwaters) or impoundments. It prefers cold,
clear headwater streams.

Pros opium williamsoni

Incidental to rare in the Green River upstream of the
Yampa River confluence and in lower sections of the
Yampa and White Rivers; common in upper sections of
the Yampa, White, and Duchesne Rivers. It prefers
streams and rivers with cool, swift water and gravel or
rubble substrates.

Cottus bairdi

Rare to common in the Yampa, Duchesne, Price, and
San Rafael Rivers and in the Green River near the
Yampa River confluence. It prefers cool-water riffles
and deep runs with rocky substrates in streams and
rivers.