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

65. Bosley, C. F. 1960. Pre-impoundment study of
the Flaming Gorge Reservoir. Wyoming Game
and Fish Commission, Cheyenne. Fisheries
Technical Report 9, Federal Aid Project F-
25-R-1. (Abstr.)
The Flaming Gorge Reservoir is scheduled for
completion in 1962 and the impounded waters
will back up the Green River to within four
miles of the town of Green River, Wyoming. An
estimated 300,000 people will utilize the
reservoir annually for recreational purposes.
Gill net sets, electrofishing, and toxicant
applications indicate that the game fish popula-
tions, within the confines of the reservoir,
are negligible. Trash fish populations are
very high with suckers, bonytails, squawfish,
and carp representing the majority of fishes
present. The removal of trash fish populations
is feasible under certain conditions.
Reservoir contours and physical data
indicate that two types of habitat will exist.
The main body of the reservoir and canyon area
will contain habitat suitable for salmonid
species, and the numerous arms and bay areas
will furnish habitat for warm water species.
Initial game fish populations will be
stocked with the thought of maximum reproductive
potential in mind. Potential spawning grounds
exist for salmonid species in the Green River
proper above the reservoir and in the tributaries
of Henry's Fork and Carter Creek.
Experimental eyed and green kokanee egg
plants in the-Green River proper and Henry's
Fork indicate that prolonged low water tempera-
tures existing during the incubation period of
this species will virtually eliminate any
natural reproduction from late running fish.
Chemical, physical and biological studies
indicate that the lower section of the Green
River above the town of Green River is capable
of producing a better game fishery than it is
at the present time.
The advent of Seedskadee project, approxi-
mately sixty river miles upstream from the
backwaters of the Flaming Gorge Reservoir, will
change the chemical and physical characteristics
of the Green River between the two projects.
Of these changes the alteration of stream
flows, increased water temperatures, and increased
turbidities may have a detrimental effect upon
IMPOUNDMENTS
MANAGEMENT
SPORT FISH.
HABITAT ALT.
TEMPERATURE
TURBIDITY
FLAMING GORGE RES.
RESERVOIR
1, 3, 8, 18
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