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

4-8

September 2000

Table 4.2.-Nonnative fishes in the Green River between Flaming Gorge Dam and the
Colorado River confluence.

Family and
Common Name

Scientific
Name

Present Distribution in the Green
River System and Comments8

Cyprinidae

Common carpb

Ctenopharyngodon idella Incidental in the lower Green River. It is adapted to
warm, large rivers with moderate diversity of habitats.

Cyprinella lutrensis Widespread, common to abundant. Its principal
distribution is in middle and lower sections of larger
rivers having warm and usually turbid water. It inhabits
perennial or ephemeral riverine habitats and is tolerant
of environmental extremes. It is the predominant
species in nursery habitats of warm-water native fishes.

Cyprinus carpiob Widespread, common to abundant. It is locally
abundant in impoundments, slack-water riverine
habitats, and seasonally flooded habitats. It prefers
sheltered habitats with an abundance of aquatic
vegetation in warm-water lakes, reservoirs, and rivers.

Grass carp

Red shiner

Utah chub

Gila atraria Incidental to rare in the Green River downstream of
Flaming Gorge Dam to the Yampa River confluence,
and in the lower Yampa River, Duchesne River
drainage, and Price River. It is abundant in Flaming
Gorge Reservoir. It prefers littoral and pelagic zones of
reservoirs; it is generally not found in larger rivers.

Redside shinerb

Notropis stramineus Common to abundant in the middle and lower sections
of the Yampa and Green Rivers and the warm-water
reaches of other tributaries. It prefers small- to large-
sized streams and rivers with permanent flow,
seasonally warm water, slow to moderate water
velocities, and clear to turbid water. It is commonly
found in nursery habitats of warm-water native fishes.

Pimephales promelasb Widespread, common to abundant in middle and lower
sections of larger rivers having warm and usually turbid
water. It inhabits a variety of habitats in ponds, lakes,
reservoirs, streams, and rivers. It is commonly found in
nursery habitats of warm-water native fishes.

Richardsonius baZteatusb Rare to common in the Yampa River and upper sections
of the Green and Duchesne Rivers. It prefers cool water
and is found in a variety of habitats. In streams, it may
occur in slow to swift, clear to turbid water and over
cobble, gravel, sand, clay, or mud substrates; it is
frequently found associated with vegetation.

Sand shiner

Fathead minnowb