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Last modified
7/14/2009 5:02:30 PM
Creation date
5/17/2009 11:16:55 PM
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UCREFRP
UCREFRP Catalog Number
7729
Author
Valdez, R. A., W. J. Masslich and A. Wasowicz.
Title
Annual Summary Report - 1990\
USFW Year
1991.
Copyright Material
NO
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<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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> <br />1.0 IN'TRODUcnON . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> <br />1.1 Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 <br /> <br />1.2 Background ..................................................... 2 <br /> <br />2.0 STUDY AREA ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 <br /> <br />3.0 MEmODS ............................. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 <br /> <br />3.1 Sampling Trips ................................................... 5 <br /> <br />3.2 Sampling Effort and Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 <br /> <br />3.3 Habitat Analysis .................................................. 6 <br /> <br />3.4 Water Quality and Macroinvertebrate Sampling .......................... 7 <br /> <br />4.0 RESUL 1'8 ............... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 8 <br /> <br />4.1 Summary of Fish Collections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 <br />4.2 Summary of Fish Collections by Gear Type with CPE Statistics . . . . . . . . . . . . . . . 8 <br /> <br />4.2.1 Electrofishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 <br /> <br />4.2.2 Gill and Trammel Netting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 <br /> <br />4.2.3 Seining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 <br /> <br />4.2.4 Fish Species Composition - Past and Present ..................... 10 <br />4.3 Summary of Colorado Squawfish Habitat Assessment . . . . . . . . . . . . . . . . . . . . .. 11 <br />4.3.1 Physical Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 11 <br /> <br />Flows ................................................. 11 <br /> <br />Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 13 <br /> <br />Habitat Availability/Channel Morphology ...................... 14 <br />Potential Spawning Habitat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15 <br /> <br />Nursery Habitat ......................................... 15 <br /> <br />4.3.2 Chemical (Water Quality) ................................... 15 <br /> <br />Alkalinity .............................................. 16 <br /> <br />Hardness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 16 <br /> <br />pH Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 16 <br /> <br />IDS .................................................. 17 <br /> <br />Ammonia .............................................. 17 <br /> <br />Nitrate ................................................ 17 <br /> <br />Phosphate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 17 <br /> <br />Ortho Phosphate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 18 <br /> <br />Metals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 18 <br /> <br />Oil and Grease .......................................... 19 <br /> <br />1'8S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 19 <br /> <br />Salinity ................................................ 19 <br /> <br />Specific Conductance ..................................... 19 <br />Dissolved Oxygen ........................................ 20 <br />
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