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<br />riffle habitat availability between the two sites suggests macroinvertebrate production would also <br />be much different. It was suggested that abtmdant and stable riffle habitat at Corn Lake provides <br />abundant macroinveliebrate forage which likely explains higher fish densities in the IS-Mile Reach <br />compared to Duffy. <br />Shallower low velocity pool habitats are very common at Duffy and rare at Com Lake at <br />flows common in the base flow period. This is reflected in the fish community at these two sites. <br />Duffy is primarily composed of non-native species that prefer pools habitats like white suckers and <br />smallmouth bass and these fish are very rare at Com Lake. Roundtail chub are rare at Duffy in <br />spite of pool habitat availability, but chub are probably near carrying capacity at Com Lake and <br />Clifton. Run habitats increase with increasing flows at Duffy, but runs decrease as flow increases <br />at Com Lake. Flannelmouth sucker is a native species associated with deeper runs and are rare at <br />Duffy but numerous at Corn Lake. We believe that future habitat analysis will confirm that nm <br />habitats are much more common at the Lily Park site compared to the other two Yampa sites. <br />The low flows observed in 2000 and 2001 provide empirical data in regard to justifying <br />instream flow recommendations. 2001 was the last year fish sampling will be conducted for this <br />project. The next step is to determine a relationship between fish density and habitat availability <br />and use it to model habitat over a range of flows. Habitat suitability indices will be based on <br />density data obtained during the study period. <br /> <br />70 - 9 <br />