6025

• UCREFRP Catalog Number: 6025
• Author: Kaeding, L. R. and D. B. Osmundson.
• Title: Report on the Studies of the Endangered Fishes of the Upper Colorado River As Part of Conservation Measures for the Green Mountain and Ruedi Reservoir Water Sales
• USFW Year: 1988.
• USFW - Doc Type: Second Annual Progress Report.
• Copyright Material: NO

TABLE OF CONTENTS
LIST OF TABLES ..................................................... iv
' LIST OF FIGURES ..................................................... v
' 15-MILE REACH INVESTIGATIONS ........................................ 1
Introduction ................................................... 1
' Methods ........................................................ 2
Results and Discussion ......................................... 5
' Adult Relative Abundance .................................. 5
Movement of Radio-Tagged, Adult Fish ...................... 7
Colorado Squawfish ................................... 7
' Razorback Sucker ..................................... 9
Larval and Young-of-the-Year Collections .................. 10
Colorado Squawfish ................................... 10
1986 ............................................ 10
1987 ............................................ 12
Razorback Sucker ..................................... 17
Spawning of Endangered Fishes ............................. 17
Colorado Squawfish ................................... 17
Razorback Sucker ..................................... 20
' Habitat Use ............................................... 22
Adult Colorado Squawfish ............................. 22
' Habitat Type .................................... 22
' Depth ........................................... 24
Temperature ..................................... 24
' Water Clarity ................................... 26
Razorback Sucker ..................................... 29
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