7953

• UCREFRP Catalog Number: 7953
• Author: Miller, W. H., et al.
• Title: Colorado River Fisheries Investigations, 1979 Progress Report - Draft,.
• USFW Year: 1980.
• USFW - Doc Type: ‎(submitted in partial fulfillment of Contract No. 9-07-40l-1016 with the Water and Power Resources Service)‎,
• Copyright Material: NO

? 1 J
- . DRAFT
NOT FOR PUBLIC RELEASE
1979 Progress Report
Colorado River Fisheries Investigations
INTRODUCTION
In April 1979, the U.S. Fish and Wildlife Service and the Water and
Power Resources Service co-signed a Memorandum of Understanding tContract
No. 9-07-40-L-101£) to establish the Colorado River Fisheries Project
(CRFP). Later the Bureau of Land Management, Colorado Office, also
entered into a similar Memorandum of Undertanding with the U. S. Fish
and Wildlife Service to provide additional support in the form of funding
t
for work on the Upper Colorado River in Colorado.
These contracted studies were to address the following facets of the
biology of the humpback chub (Gila cypha)-and Colorado squawfish (Ptychocheilus
-- -
lucius):
1. spawning requirements;
2. young and adult habitat requirements/preferences;
3. migration and movement;
4. interspecific competition;
5. cultural technologies;
6. tolerance to chemo-physical conditions of their environment.
The study program was, therefore, developed along three distinct lines:
field, hatchery and laboratory investigations.