7177

• UCREFRP Catalog Number: 7177
• Author: Miller, W. H., H. M. Tyus and C. W. McAda.
• Title: Movement, Migration and Habitat Preference of Radiotelemetered Colorado Squawfish; Green, White and Yampa Rivers, Colorado and Utah.
• USFW Year: 1983.
• USFW - Doc Type: Salt Lake City, Utah.
• Copyright Material: NO

INTRODUCTION
The Fish and Wildlife Service (FWS) initiated the Colorado River
Fishery Project (CRFP) in 1979 as a special study of the endangered
fishes of the Green and Colorado rivers. In 1981, the Green River
segment of the project was expanded to include a study of the White and
Yampa rivers. One phase of the study included radiotelemetry of the
endangered Colorado squawfish. Objectives of the radiotelemetry study
included the location of spawning sites and the description of movement
patterns of Colorado squawfish.
FWS reports for the CRFP studies contained only general information
on radiotelemetry (Miller et al. 1982a,b,c). This paper gives a summary
of radiotelemetry work and provides the first analysis of the data.
Findings from this report supplement the results of previously reported
CRFP work on the White, Yampa and Green rivers. Radiotelemetry of
Colorado squawfish will continue in 1982-1984 and further information
will be forthcoming.
The radiotelemetry study area included turbid waters of the mainstem
Green River and three tributaries, the Duchesne, White and Yampa rivers
(Fig. 1). Field work was conducted in the Green River from Gray Canyon
to Dinosaur National Monument, a distance of about 340 km (214 mi); the
Yampa river from its mouth to Juniper Springs (160 km); and the White
River from the mouth to Rangely, Colorado (140 km).