7144

• UCREFRP Catalog Number: 7144
• Author: Inslee, T. D.
• Title: Spawning and Hatching of the Razorback Sucker
• USFW Year: 1982
• USFW - Doc Type: Western Association of Fish & Game Agencies
• Copyright Material: NO

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by the State of Utah. The squawfish is known to inhabit and reproduce
in the Green River. Other rare fish that inhabit the area include the
humpback chub (Gila cypha), also an "endangered species," and the bony-
tail chub (Gila elegans) and razorback sucker (Xyrauchen texanus), which
are protected by the State of Utah.

STUDY AREA

The study was originally designed to cover portions of the river
above and below the proposed water withdrawal site. Intake sites were
initially located at the mouth of Walker Hollow and near the mouth of
Baser Wash (Figure 1). We, therefore, began studying a 35 km section
of the Green River, starting 65 kM above Walker Hollow, and ending
10 krn below. During our field sampling effort, drilling and pumping
studies conducted by Burns and McDonnell indicated that the initial
sites were not adequate for the water withdrawal system. Following con-
siderable testing, a site near the upstream end of our study area was
selected for the raw water intake system. Therefore, the area sampled
during our field program covered only a short distance (about a kilorr.eter)
of river above the proposed site. However, BIO/WEST has been concur-
rently conducting a similar study of fish for the U.S. Fish and Wildlife
Service above the Moon Lake study area and fishery data from that study
is available, if needed.

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