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WSP05780
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Entry Properties
Last modified
1/26/2010 2:19:51 PM
Creation date
10/12/2006 1:16:39 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8240.200.33.J
Description
15-Mile Reach (UCRBRIP)
State
CO
Basin
Colorado Mainstem
Water Division
5
Date
1/1/1989
Author
USFWS
Title
Relationships Between Flow and Rare Fish Habitat in the 15-Mile Reach of the Upper Colorado River
Water Supply Pro - Doc Type
Publication
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<br />TABLE OF CONTENTS <br /> <br />LIST OF TABLES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv <br /> <br />LIST OF FIGURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi <br /> <br />ACKNOWLEDGEMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix <br /> <br />EXECUTIVE SUMMARY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x <br /> <br />INTRODUCTION .......................................................... I <br />Background '.' . . .. . . . . . . . .. . . .. . . . . . .. . . . .. . . . . . . . . . . . . . .. .. . . . . .. . . . . . . I <br />Approach Used for Summer and Winter Recommendations ........................ 2 <br />Approach Used for Spring Recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 <br /> <br />Study Objectives ......................................................... 4 <br />Adjacent Reaches and Companion Studies ..................................... 4 <br /> <br />METHODS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 <br />Study Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 <br />Summer and Winter Flow Needs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 <br /> <br />Site Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 <br />Data Collection ...................................................... 10 <br />AerialVideoandHabitatMapping ..............................10 <br />Water Depth and Stream-bed Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . 11 <br /> <br />RiverDischarge ............................................11 <br />Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 <br />Habitat Mapping Corrections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 <br />Seasonal Partitioning of the Year. . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . 13 <br />Determining Preference For Habitat Type. .. . . . . . . . . . . . . . . . . . . . . . . 13 <br />Determining Flow Levels That Maximize Preferred Habitat '" . . . . . . . . 14 <br /> <br />Spring Flow Needs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 <br /> <br />FISH HABITAT USE ....................................................... 16 <br />General ............................................................... 16 <br />Adult Colorado squawfish . . . . . . . . . .. . . .. . . . . . . . . . . . . . .. . .. . . . . . . . . . . . . . . . . 16 <br /> <br />Winter ........................................ . . . . . . . . . . . . . . . . . . . . . 16 <br />Spring ............................................................. 16 <br />Summer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 <br />March and October. . . . .' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 <br />Adult Razorback Sucker .................................................. 18 <br /> <br />Winter. . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . 18 <br />Spring ............................................................. 18 <br />Summer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 <br />Seasonal Partitioning of the Year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 <br /> <br />i <br />
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