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<br />TABLE OF CONTENTS
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<br />Consultation History, , . , , , . , . , . , , , . . , , . , , . , , , , , . , , , , . , , , , . , . , , . , . , 3
<br />Scope of the Biological Opinion , . , , . , , . . . , , . , , , . . . , . , , , , , , , , , . , . , . . , 5
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<br />BIOLOGICAL OPINION ".".".,.".."."...,...".".,."....,..,.,.,...,5
<br />DESCRIPTION OF THE PROPOSED ACTION .".".".".".,.,."..".,. 5
<br />STATUS OF THE SPECIES AND CRITICAL HABITAT. , , . . , . , . , . , , , . , . , , , . 19
<br />Colorado Pikeminnow .,',.,"'",.,.",..,."..".".,.,.,...,., 19
<br />Species/Critical Habitat Description .."..,.,.,.,.".."...,.., 19
<br />Status and Distribution .,.."..".,.."",..,."""",.,." 20
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<br />LifeHistory ",.""",."."",.".."."."".,.,.,..,.22
<br />Population Dynamics ',."."..",.""",.,...,.",.",., '. 25
<br />Analysis of Species/Critical Habitat Likely to be Affected " , , . , . , . , , 25
<br />Razorback Sucker ",..".,',..,..".".",."",.""""""., 28
<br />Species/Critical Habitat Description .."..,.".""",.,.,.,." 28
<br />Status and Distribution " . , , . . , , . , , . . , . . , . , , . , . . . , . , . , . , , , . , 29
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<br />Life History ,."..",..,..,...""",..".""."",."., 30
<br />Populations Dynamics . . , . , , . . , , , . , , . . , . . , . , , . , , , , . , , . . , , . , . 32
<br />Analysis of Species/Critical Habitat Likely to be Affected , . , , , , , . , . . 32
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<br />Humpback Chub ',.,."...".",."."."".""..".",..".,.,.,.,. 32
<br />Species/Critical Habitat Description ",..,."'."".'"".",,, 32
<br />Status and Distribution , . . , . , , , . , , , . , . . , , , , . . , . , . , , , , , , , . , , , 33
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<br />Life History ..".,',.,',.",."."..,.."".""...,."., 33
<br />Population Dynamics ",.".",..",.,.,.".",.,.,.,..".,34
<br />Analysis of Species/Critical Habitat Likely to be Affected ., . , , , , , . . , 34
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<br />Bonytail , . . , . . , . , . , , . . , , . , , . . , , , , , , . , , . , , . , , . , , , , . . . , , , , , , , , . . 34
<br />Species/Critical Habitat Description ".',.".."."".",.,.", 34
<br />Status and Distribution .".,"""."..,."".",.,.",.,.,. 35
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<br />Life History ",."."',.".",."."..,."."".,.,.,.,,. 35
<br />Population Dynamics ,..,..".."",."."..,.."."",.". 35
<br />Analysis of Species/Critical Habitat Likely to be Affected " , , . , . , , . , 35
<br />IMPORTANCE OF THE 15-MILE REACH, , , , . , , . . , , . . , . , , . , , , , . , , . , . , , , , 36
<br />FLOW NEEDS FOR ENDANGERED FISHES .".".,',.""..,.,.,.,...., 37
<br />ENVIRONMENTAL BASELINE. . , , ' , , , . , , , . . , , . , . . , , , , . . , , , , . , . . . , . . , , 39
<br />Status of the Species Within the Action Area .,.".".".,."",. 42
<br />Factors Affecting Species Environment within the Action Area, . , , , . , 44
<br />EFFECTS OF THE ACTION ,.,.,.,',..".""".,..".".,.".,.,.,.,. 44
<br />Factors to be Considered ,.,',."..",."."."."",.".",.",., 44
<br />Analyses for Effects of the Action, . . , , , , , , . , , , . , . , , . , , , , , . , . , . , , , , , . 45
<br />Species and Critical Habitat Response to the Proposed Action ..,.,.,.,.", 63
<br />CUMULATIVE EFFECTS .".",.,.,.,.,."..,."..",.",.,."".,.,.67
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<br />CONCLUSION '" , , , . , . , . , , , , , , , . , , . , , , . , , . , . , . , , , , . , , . , , . . , , . , , , , , . 67
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