7065

• UCREFRP Catalog Number: 7065
• Author: Behnke, R. J. and D. E. Benson.
• Title: Endangered and Threatened Fishes of the Upper Colorado River Basin.
• USFW Year: 1983.
• USFW - Doc Type: Bulletin 503A,
• Copyright Material: NO

Abstract
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Behnke, R.J., and Benson, D.E.
I 1980 Endangered and Threatened Fishes of the Upper Colorado
River Basin. Cooperative Extension Service, Colorado State Uni-
I versity, Fort Collins, Colorado, Bulletin 503A. I
Discusses the biology, distribution, current status and reasons for
decline of five species native to the upper Colorado River basin: Colorado
River squawfish, Ptychocheilus lucius; humpback chub, Gila cypha;
bonytail chub, Gila elegans; razorback sucker, Xyraucken texanus; and
Colorado River cutthroat trout, Salmo clarki pleuriticus. An interpreta-
tion of the Endangered Species Act is included.
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