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• 2 <br />4. Reoperation of the Aspinall Unit to provide test flows and enhance <br />endangered fish habitat conditions in the Gunnison and Colorado <br />Rivers. <br />B. Status of fish populations: <br />Colorado River Gunnison River <br />Colorado squawfish small; stable small; declining <br />Humpback chub healthy N/A <br />Bonytail extirpated extirpated <br />Razorback sucker small; declining extirpated <br />C. Adequacy of flows: <br />1. Winter--adequate; legal protection yet to be provided. <br />2. Spring--duration and magnitude of peak spring flows is less than <br />adequate; legal protection yet to be provided. <br />3. Summer-Fall--generally adequate with shortages in the 15-mile reach; <br />• legal protection partially provided. <br />Green River Subbasin Accomplishments <br />1. Actions which result in a measurable population response, a measurable <br />improvement of habitat, legal protection of flows, or a reduction in the <br />threat of immediate extinction: <br />a. Reoperation of Flaming Gorge Project to enhance endangered fish <br />habitat in the Green River pursuant to the biological opinion on the <br />reoperation of the Flaming Gorge Project. <br />b. Partial establishment of refugia for razorback sucker from the Green <br />and Yampa Rivers.. <br />2. Status of fish populations: <br />Green Yampa/Little Snake White <br />Colorado squawfish stable; possible stable stable <br />increase <br />Humpback chub small/stable ? small/stable ? N/A <br />Bonytail extirpated extirpated N/A <br />• Razorback sucker small/declining small/declining very rare/ <br />declining <br />