7086

• UCREFRP Catalog Number: 7086
• Author: U.S. Fish and Wildlife Service.
• Title: Indexed, Annotated Bibliography of the Endangered and Threatened Fishes of the Upper Colorado River System.
• USFW Year: 1977.
• USFW - Doc Type: Denver, Co.
• Copyright Material: YES

osculus thermalis). There is a need for
further research on this fish since little
detailed information is available on the
patterns of differentiation and validity of the
subspecies.
44. Behnke, R. J. 1973. Utah or Bonneville
cutthroat trout (Salmo clarki utah).
Threatened and Endangered Fish Report,
Colorado Cooperative Fish Unit, Colorado
State University, Fort Collins for U. S.
Fish and Wildlife Service, Region 2,
Albuquerque, New Mexico. 9 pp.
The taxonomy, range and distribution, and the
life history and ecology of the Utah or Bonne-
ville cutthroat trout (Salmo clarki utah) is
discussed. It is recommended that further
surveys be made in the Virgin River drainages
and that new populations of S. c. utah be
established by introduction.
45. Behnke, R. J. 1974. Status report: Salmo
clarki pleuriticus. Prepared for Region
II, U. S. Fish and Wildlife Service,
.Albuquerque, New Mexico. 6 pp. (mimeo)
In this paper the taxonomy, distribution,
reasons for decline, life history, ecology, and
management of the Colorado River cutthroat
(Salmo clarki pleuriticus) is reviewed.
46. Behnke, R. J. 1975. The native cutthroat
trouts of Wyoming. Part I: evaluation of
collections from the Green River and Bear
River drainages; Part II: further evaluation
of collections from the Green River and
Bear River drainages. Colorado State
University, Fort Collins. 20 pp.
Part I of the report discusses five subspecies
of cutthroat trout (Salmo clarki stomias, 5. c.
utah, S. c. lewisi, S. c. pleuriticus, and S.
c. bouvieri). Preservation of the rare trout
and taxonomic characteristics of cutthroat
trout in Wyoming is discussed. Part II discusses
all of the collections received from the
Wyoming Game and Fish Department to date in
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