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<br />. <br /> <br />. <br /> <br />Table I. Delineation of critical river reaches for rare and endangered <br />Colorado River fishes in the Yampa River, with notes on potential <br />limiting factors. <br /> <br />Life historv <br /> <br />Potential limitinq factors <br /> <br />Adult <br />Concentration <br />Migration <br />Spawning <br />Larva 1 <br />Juvenil e <br /> <br />Adult <br />Concentration <br />Spawning <br />Larva 1 <br />Juvenil e <br /> <br />Adult <br /> <br />Adult <br />Spawning <br />Larva 1 <br /> <br />Location(RM)a <br /> <br />Season <br /> <br />Spring peak flows; overbank <br />flooding; seeps in spawning <br />reaches; number of ripe <br />females; angling or other <br />incidental takes; siltation <br />of spawning substrate; <br />competition and predation <br />with nonnative fishes; food <br />availability; stream <br />blockage; low flows late <br />summer, fall, and winter; <br />stability of winter flows. <br /> <br />Spring peak flows; <br />availability of shoreline <br />eddy habitat and deep <br />canyon habitat; competition <br />and predation by nonnative <br />fishes. <br /> <br />Factors unknown <br /> <br />Spring peak flows; overbank <br />flooding; number of <br />reproducing adults; <br />competition and predation by <br />nonnative fishes; lack of <br />substantive recruitment to <br />juvenile life history stage. <br /> <br />Colorado Squawfish <br /> <br />0-140 <br />51-124 <br />0-140 <br />4-31 <br />0-31 <br />0-140 <br /> <br />All Year <br />August-May <br />May-August <br />June-August <br />July-August <br />All Year <br /> <br />a Numbers represent river miles (rounded) upstream from the mouth of the Yampa <br />River. <br /> <br />0-56 <br />4-40 <br />12-40 <br />0-40 <br />0-56 <br /> <br />Humpback Chub <br /> <br />A 11 Year <br />A 11 Year <br />May-July <br />May-July <br />A 11 Year <br /> <br />0-10 <br /> <br />Bony tail Chub <br />All Year <br /> <br />Razorback Sucker <br /> <br />0-13 <br />0-4 <br />0-4 <br /> <br />A 11 Year <br />April-June <br />April-June <br /> <br />9 <br />