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Last modified
7/14/2009 5:02:32 PM
Creation date
5/17/2009 11:02:50 PM
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UCREFRP
UCREFRP Catalog Number
8086
Author
Valdez, R. A. and B. R. Cowdell.
Title
Lake Powell Inflow Study. Annual Summary Report - 1993.
USFW Year
1994.
USFW - Doc Type
384-1,
Copyright Material
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<br />Pal!e <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />TABLE OF CONTENTS <br /> <br />EXECUTIVE SUMMARY ......................................................... ill <br /> <br />ACKN"OWLEDGEMENTS ......................................................... vii <br /> <br />1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1 <br /> <br />1.1 PURPOSE AND OBJECTIVES............................................ 1 <br /> <br />1.2 BACKGROUND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1 <br /> <br />2.0 STUDY AREA ............................................................... 2 <br /> <br />2.1 RIVER FLOWS AND WATER TEMPERATURES. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3 <br /> <br />3.0 METHODOLOGY ............................................................ 4 <br /> <br />3.1 BASIG STUDY DESIGN ................................................. 4 <br /> <br />3.2 SAMPLING GEAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4 <br /> <br />3.2.1 Electrofishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4 <br /> <br />3.2.2 Seining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5 <br /> <br />3.2.3 Netting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5 <br /> <br />3.2.4 Trapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. 5 <br /> <br />3.3 STOMACH CONTENT ANALYSIS ....... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6 <br />3.4 DATA COLLECTION AND STORAGE ..................................... 6 <br /> <br />4.0 RESULTS ................................................................... 6 <br />4.1 SUMMARY OF FISH COLLECTIONS ...................................... 6 <br />4.2 FISH COLLECTIONS BY GEAR TYPE WITH CPE STATISTICS ................. 8 <br /> <br />4.2.1 Electrofishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8 <br /> <br />4.2.2 Seines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9 <br /> <br />4.2.3 Gill and Trammel Nets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10 <br /> <br />4.2.4 Larval Light Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10 <br />4.3 STOMACH CONTENT ANALYSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10 <br />4.4 SUMMARY OF ENDANGERED FISH CAPTURED .......................... 11 <br />4.4.1 Colorado Squawfish ............................................. 11 <br /> <br />4.4.2 Gila sp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 12 <br /> <br />4.4.3 Razorback Sucker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 12 <br /> <br />5.0 SUMMARY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 13 <br /> <br />6.0 RECOMMENDATIONS ....................................................... 14 <br /> <br />LITERATURE CITED ........................................................... 15 <br /> <br />liST OF APPENDICES <br /> <br />APPENDIX A - FIELD CODES AND DATA FORMS <br /> <br />APPENDIX B - SUMMARY OF THREATENED AND ENDANGERED FISH HANDLED <br /> <br />APPENDIX C - LARVAL FISH LABORATORY PRELIMINARY SAMPLE RESULTS <br /> <br />iv <br />
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