8178

• UCREFRP Catalog Number: 8178
• Author: Anderson, R. and G. Stewart.
• Title: Riverine Fish Flow Investigations.
• USFW Year: 1999.
• USFW - Doc Type: Fort Collins, CO.
• Copyright Material: NO

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TABLE OF CONTENTS

LIST OF TABLES.................,.......,.........................,.".........,...................,....................,............ v

LIST OF FIGURES........ ..................................... .............................................,....,.................., vi

INTRODUCTION ................................................................... ......... ..........",.............,........,......1

Study Objectives....... ................................ ........................................................................2

STUDY AREA........................................................................................................................... 2

MATERIAl.S AND METHODS.................................................................................................4

Fish samples ........................................................................................................ 4

Invertebrate samples............................................................................................. 5

Habitat mapping................................................................................................... 5

Hydraulic simulation............................................................................................ 6

Habitat availability............................................................................................... 8

RESULTS ... ........... ...... ... ..... ............. ........ .... ................. ...... ....... .... .... ..... .... ......... .... ..... .... ........9

Fish Samples....................................................,................................................... 9

S. ., 9
pecIes composItIon.......................................................................................

Density and biomass estimation.................................................,.................. 11
Size and length frequency............................................................................. 13

Invertebrates...................................................................................................... 14

Habitat Composition.......................................................................................... 16

DISCUSSION ... .... ........... ............. .......... ......... ........... ................. ................................... ......... 19

Fish Samples ................. ....... ............ ............. ..... ................ ............. ..... ......... .....19

Invertebrates...................................................................................................... 20

Habitat Composition.......................................................................................... 21

SllMMAR Y AND CONCLUSIONS ........................................................................................ 21

RECOMMENDATIONS................................................................;......................................... 22

ACKN"OWLEDGE1\ffiN'TS.................................................... .., ......................... ..................... ..22

REFERENCES......................................................................................................................... 23

APPENDIX 1, Fish Data........................................................................................................... 25

APPENDIX 2, Invertebrate Data...... ........ .,. ................ ........ ... .... ............... .......... .... .......... ... ..... 33

APPENDIX 3, Habitat Data...................................................................................................... 39