8206

• UCREFRP Catalog Number: 8206
• Author: Miller, W. J. and D. E. Rees.
• Title: Colorado Squawfish habitat use and movement during summer low flow in the Yampa River upstream of Cross Mounatin Canyon. Final Report.
• USFW Year: 1997.
• USFW - Doc Type: Fort Collins, Colorado.
• Copyright Material: NO

TABLE OF CONTENTS
LIST OF FIGURES ...................................................................................................................................... ii
LIST OF TABLES ......................................... ..............................................................................................iv
EXECUTIVE SUMMARY ............................ ...............................................................................................v
INTRODUCTION .......................................... ...............................................................................................1
Study Area .................................................. ...............................................................................................1
Previous Studies on Colorado Squawfish ... ...............................................................................................1
Migration to Spawning Sites ................... ...............................................................................................3
Non-Reproductive Movement ................ ...............................................................................................4
Habitat Use .............................................. ...............................................................................................4
Habitat Availability ................................. ...............................................................................................5
Habitat Suitability Curves ....................... ...............................................................................................6
METHODS ..................................................... ............................................................................................... 6
RESULTS ....................................................... ...............................................................................................7
Colorado Squawfish .................................... ...............................................................................................7
Colorado Squawfish #40:7810 (CS781) . ...............................................................................................7
Colorado Squawfish #40:7419 (CS741) . ...............................................................................................8
Colorado Squawfish #40:6840 (CS684) . ...............................................................................................8
Colorado Squawfish #40:6635 (CS663) . .............................................................................................23
Colorado Squawfish #40:7143 (CS714) . .............................................................................................23
Colorado Squawfish # 40:5021 (CS502) .............................................................................................29
Colorado Squawfish # 40:5125 (CS513) .............................................................................................29
Colorado Squaw-fish # 40:8041 (CS804) .............................................................................................29
Colorado Squawfish # 40:8455 (CS845) .............................................................................................40
Colorado Squawfish 40:8555 (CS855) ... .............................................................................................40
Channel Catfish .......................................... .............................................................................................48
Channel Catfish #40:5539 (CC553) ........ .............................................................................................48
Channel Catfish #40:6732 (CC673) ........ .............................................................................................48
Channel Catfish #40:6532 (CC653) ........ .............................................................................................48
Channel Catfish #40:7033 (CC703) ........ .............................................................................................48
Channel Catfish #40:7719 (CC771) ........ .............................................................................................57
Northern Pike .............................................. .............................................................................................57
Northern Pike #40:5834 (NP583) ........... .............................................................................................57
Northern Pike #40:5440 (NP544) ........... .............................................................................................57
Northern Pike #40:7919 (NP791) ........... .............................................................................................65
Northern Pike #40:6135 (NP613) ........... .............................................................................................65
Northern Pike #40:5936 (NP593) ........... .............................................................................................65
DISCUSSION .............................................................................................................................................72
Flows ........................................................................................................................................................72
Radio Telemetry ........................................: .............................................................................................72
24-Hour Observations ..........................................................................................................................73
Habitat Use ..............................................................................................................................................77
Habitat Use Criteria Curves for Use in Modeling Habitat Availability ..................................................80
CONCLUSIONS .........................................................................................................................................88
LITERATURE CITED ................................................................................................................................90
Final Report - Colorado squawfish habitat Page i
Miller Ecological Consultants, Inc. December 17, 1997