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<br />.". I. ~,i {,..
<br />OO~425
<br />
<br />TABLE OF CONTENTS
<br />
<br />LIST OF TABLES ..""......,.,.",.,.............".................... x
<br />
<br />LIST OF FIGURES ...,.........."".,.,.............,.",.............. xiii
<br />ACRONYMS, ABBREVIA nONS AND UNITS OF MEASURE .......,., xv
<br />EXECUTIVE SUMMARy......." ,.,.....,.,........ ..............,... XVII
<br />
<br />MANAGEMENT PLAN
<br />
<br />INTRODUCTION ................,....,.,...,.,.....,........,............,.. I
<br />
<br />Purpose and Need .......,...,..,..,...............,..,...............,..,. I
<br />
<br />Settin!! ...........,............."........,..........,.,',.,. , . . . . . . . . . . ' , 3
<br />
<br />Status and Current Distribution of Endan!!ered Fish Species .,..........:....,...9
<br />Humpback cbub (Gila cypha) . . . . . . , . . , , . . . , . , . . . . . . . . . . . . . . . . . . . . . . . . . ' , 12
<br />Bony tail (Gila elegans) . . . . . . . . . . . . , . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , 14
<br />Colorado pikeminnow (Ptychocheilus lucius) ..,..:.. . . . . . . . . . . . . . . . . . ' . . . . , 15
<br />Razorback sucker (Xyrauchen texanus) , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ' . . . . , 16
<br />DESCRIPTION OF THE PROPOSED ACTION,.,.............,...,............ 18
<br />
<br />Historic. Current and Proiected Depletions ........,........,..............,.. 18
<br />Colorado Depletions. . . . . . . . . . . . . . ' , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , ' 18
<br />Wyoming Depletions .....,..."."....,...,.....,....",...,....,....., 25
<br />Water Ri!!bts Administration ......".,......,............",............,..29
<br />Depletion Accountin!! . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . , . . . . . . . . . . . . . ' . , ' . 30
<br />Framework for Recoverv Actions and Cooperative A!!reement . . . . . . . . . . . . . . . . . . . 31
<br />Provide and Protect Instream Flows ...................,.................,... 32
<br />
<br />Background ................,.".........,..........."...,........... 32
<br />
<br />Quantification of Augmentation Needs .....,....... , . . , . , . . . . . . . . . . . . . . , . . 36
<br />Formulation of an Augmentation Strategy .............,.."..... . . . . . . . . . . 42
<br />Description of Alternatives ....,.."....,............,.",............... 44
<br />Non-structural alternatives. . . . . . . . . . . . . . ' . . . . . . . . . . . , . . . , . . . . . . . . . . . . . . 44
<br />Structural alternatives ..............................................., 46
<br />Other alternatives considered. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . ' . .', . . ,47
<br />
<br />Management Plan for Endangered Fishes in the Yampa River Basin
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