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<br />I <br />J <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />f <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br /> <br />N <br /> <br />"'.E <br /> <br /> <br />s <br /> <br />200 <br /> <br />Lorna <br /> <br />Q) <br />C <br />..J <br />Q) <br />ro <br />[j) <br />o <br />" <br />III <br />~ <br />o <br />o <br />u <br /> <br />177 <br />2 Adjacent sites. CLIFTON. CORN LAKE <br /> <br />'t, <br /><:>", <br />~ <br />0., <br />-e. <br />...." <br /> <br />Whltewater Gage <br /> <br />, <br /> <br /> <br />Bridg~(' <br /> <br />10 <br /> <br />10 <br /> <br />20 Mites <br /> <br />o <br /> <br />Figure 4. Location of the two study sites in the IS-Mile Reach, Colorado River, Com <br />Lake and Clifton. <br /> <br />Summer flows were much less in 2000 and 2001 than in 1999. They provided an <br />opportunity to sample the fish population at different flows. Osmundson et al. (1995) <br />made instream flow recommendations for the IS-Mile Reach based on a study of habitat <br />availability for endangered fish. The recommendations from Osmundson et al (1995) <br />were somewhat complex because they wanted to avoid using a single minimum flow. <br />These instream flow recommendations were provided as mean monthly (not mean daily) <br />minimums flows. They varied by season and depending on wet, average and dry flow- <br />year categories determined from historic flow data. The lowest mean monthly flow <br />recommendation was 810 cfs (Table]), which should only occur at the same frequency <br />as dry years, which was defined as two in ten years. In half the years, the mean monthly <br />minimum flow for August to September should exceed 1630 cfs (Table I). <br /> <br />9 <br />