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34 <br />• Tyus and Karp (1989) reported a gradual flow decline after peak spring <br />flows to be advantageous to Colorado squawfish spawning. <br />Humpback chub <br />o Historic spring peak flows are important to the spawning success of this <br />species. <br />Tyus and Karp (1989) cited depletion of historic peak flows as a possible <br />limiting factor to reproduction of humpback chub in the Yampa River. <br />Important shoreline eddy habitat, important to humpback chub <br />reproductive success, is maximized at peak flows in the Yampa River. <br />• Razorback sucker <br />o Historic peak flows are important to the reproductive success of this species. <br />Tyus and Karp (1989) reported historic flow peaks to be an important factor in <br />razorback sucker reproduction, which occurs during and just previous to peak <br />spring flows. <br />Bonytail chub <br />o No data are available regarding reproductive flow timing requirements for this <br />species. <br />CJ