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Ci <br /> <br />erally considered optimum for trout), (2) more pool areas <br />than riffle areas (65 percent pools to 35 percent riffles), <br />(3) generally turbid water flow throughout most of the year, <br />(4) low average flow velocity, (5) widely meandering <br />natural stream channel with steeply undercut and eroding <br />banks, and (6) lack of an adequate food supply (macro- <br />invertebrates) for the existing trout population. The <br />only non-game fish species which occur in Fish Creek <br />are white suckers, sculpins, red shiners, and speckled <br />dace and fathead minnows. <br />Benthic Macroinvertebrates <br />According to the report prepared by Wentz (1974) mayflies <br />and midges are the two most common benthic macroinvertebrates <br />(insects which spend at least a portion of nymphal stages <br />of their life cycle in association with the stream bottom) <br />found in the study area. Other aquatic invertebrates <br />found in streams in the analysis area include stoneflies, <br />caddisflies, and black flies (Wentz 1974). <br />Dames and Moore established a series of aquatic sampling <br />stations within the subject area in 1975. These sights <br />were monitored in July, August, and September of 1975. <br />Endangered or Threatened Species <br />There is no threatened or endangered aquatic life on or <br />around any of the three lease applications. <br />112 <br />