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

15. Baird, S. F., and C. Girard. 1853. Fishes.
In: Capt. L. Sitgraves report of an
expedition down the Zuni and Colorado
Rivers. pp. 148-152. U. S. Senate
Executive Document 59, 23rd Congress 2nd
Session.
The paper gives a detailed description of the
speices Gila robusta, Gila elegans, and Gila
gracilis, which were collected in the Zuni
River.
TAXONOMY
DESCRIPTION
HISTORY
ENDANG. FISH
ZUNI R.
1, 21, 22
16. Baldes, R. J. 1968. Microhabitat velocity BEHVIOR
occupied by trout. M.S. thesis, Colorado FLOW
State University, Fort Collins. (Abstr.) HABITAT
MOVEMENTS
Physical parameters of a habitat govern the WATER QUAN.
characteristics of microhabitats. Brown trout
were observed in a simulated stream environment
(flume) at three water volumes (1.2, 3.6, and
6.8 cfs). Resting microhabitats occupied by
study fish were within a velocity range of 0.4
to 0.7 ft/sec. Other factors, such as turbulence,
light, water depth, spatial limits, directions
of flow, and cover also influence the locations
selected by fish. Conclusions based on this
research are 1) a positive reostatic response
to current, 2) a definite preference for water
velocities between 0.4 and 0.7 ft/sec, 3) a
strong positive thigmotactic response substituted
for a fright-cover response in the absence of
cover, 4) a strong photonegative response, 5)
areas of suitable velocity were usually near
the flume bottom 6) a resting microhabitat must
be above a minimum size.
17. Bangerter, A. 1972. Statewide fishery manage- SPORT FISH
went survey. Utah Division of Wildlife, MANAGEMENT
Salt Lake City. Federal Aid Project F-22- POPULATION
R-3, Publication No. 74-7. 49 pp.
The results of a statewide fishing harvest and
fishing. pressure survey conducted by mail
questionnaire are presented. Distinction is
made between warm and cold water species, and
lake and stream fishing.
17