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

and its confluence with the Colorado River.
Gill nets, trammel nets, seines and electrofish-
ing were used. No bonytail or humpback chubs
were collected and razorback suckers were
collected only at the Palisade Labor Camp and
the Walker Wildlife area. Colorado squawfish
were taken only at the'Walker area. A total of
19 razorback suckers and 2 Colorado squawfish
were collected in the Colorado River and one
razorback sucker was collected in the Gunnison
River with 105 man-days of effort. No young of
either species were reported.
202. Kirsch, P. H. 1888.
fishes obtained
Thomas, Arizona,
Carpenter, U. S.
National Museum
Notes on a collection of ENDANG. FISH
in the Gila River at Fort DESCRIPTION
by Lieutenant W. L. COLORADO R.
Army. Proceedings U. S. 3, 8, 14, 15,
11:555-558. 21
Notes on or descriptions of fishes, are provided
for Catostomus latipinnis, C. gila, C. insignis,
C. clarki, Xyrauchen cypha, Ptychocheilus
lucius, and Gila emorri (outside area of
consideration).
203. Klein, W. D. 1957. A partial census of the
whitefish and trout population in the
Yampa and White rivers and their tribu-
taries. Colorado Division of Wildlife,
Fort Collins. Special Purpose Report 47.
18 pp. (Abstr.)
During the summer of 1955 fish populations in
the Yampa and White river drainages were partially
censused by means of an electrical shocking
device. The information thus obtained was
combined with available creel census data
analyzed with particular emphasis on the white-
fish populations. The whitefish were found to
be widely dispersed and numerous in both drainages.
The average size of the whitefish is appreciably
larger in the White River drainage as compared
to the Yampa. In both drainages the presence
of substantial numbers of whitefish of spawning
size was indicated. The creel census data
shows little change in the average size of the
whitefish catch over a period of years thus
suggesting stability in the population. There
is a naturally produced and sustained "healthy"
SURVEY
CREEL CENSUS
DISTRIBUTION
YAMPA R.
WHITE R.
30, 36
85