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<br />MOVEMENT/MIGRATION ............................. 30 <br /> <br />BONYTAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 <br />HISTORIC DISTRIBUTION AND ABUNDANCE ............... 31 <br />CURRENT DISTRIBUTION AND ABUNDANCE ............... 33 <br /> <br />STATUS ......................................... 34 <br />HABIT A T REQUIREMENTS ............................ 34 <br /> <br />Ri verine ....................................... 34 <br />Reservoir ...................................... 35 <br />Hatchery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 <br /> <br />~ <br />, <br /> <br />CRITICAL HABITAT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 <br />DEFINITION OF CRITICAL HABIT AT . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 <br />ROLE OF CRITICAL HABITAT IN SPECIES CONSERVATION. . . . . . . . . . . 37 <br />PRIMARY CONSTITUENT ELEMENTS .......................... 38 <br />ADDITIONAL SELECTION CRITERIA FOR THE RAZORBACK SUCKER . . . . 39 <br />RESULTS OF APPLYING PRIMARY CONSTITUENT ELEMENTS AND <br />SELECTION CRITERIA .......... . . . . . . . . . . . . . . . . . . . . . . . . 40 <br />RAZORBACK SUCKER .................................. 41 <br />CRITICAL HABITAT DESIGNATION BY AREA ............... 44 <br />Yampa River - Lily Park to Green River Confluence. . . . . . . . . . . . 44 <br />Green River - Confluence with the Yampa to Sand Wash . . . . . . . .. 48 <br />Green River - Sand Wash to Confluence with the Colorado River . . . . 52 <br />White River - Lower 18 Miles ......................... 54 <br />Duchesne River - Lower 2.5 Miles . . . . . . . . . . . . . . . . . . . . . . . 57 <br />Gunnison River - Confluence with the Uncompahgre River to the <br />Redlands Diversion Dam .......................... 59 <br />Colorado River - Rifle, Colorado to Westwater ............... 63 <br />Colorado River - Westwater to the Dirty Devil Ann of Lake Powell .. 66 <br />San Juan River - Hogback Diversion to Neskahai Canyon ........ 69 <br />Colorado River - Paria River to Hoover Dam ................ 72 <br />Colorado River - Hoover Dam to Davis Dam (Lake Mohave) ...... 77 <br />Colorado River - Parker Dam to Imperial Dam ............... 81 <br />Gila River - Arizona-New Mexico Border to Coolidge Dam ....... 87 <br />Salt River - US60/SR77 Bridge to Roosevelt Diversion Dam . . . . . .. 92 <br />Verde River - Dam at Sullivan Lake to Horseshoe Dam .. . . . . . . . . 96 <br />COLORADO SQUAWFISH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 101 <br />CRITICAL HABITAT DESIGNATION BY AREA .............. 103 <br />Yampa River - Craig, Colorado, to Green River Confluence ...... 103 <br />Green River - Confluence with the Yampa to Confluence with the <br />Colorado River '" . . . . . . . . . . . . . . . . . . . . . . . . . . .. 107 <br />White River - Rio Blanco Reservoir to Green River ........... 110 <br />Gunnison River - Confluence with the Uncompahgre River to the <br />Gunnison River Mouth .......................... 112 <br /> <br />,I <br />, <br />I <br />I <br /> <br />iii <br />