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<br />Table 1. Descriptions of major habitat types. <br />Habitat Description <br /> <br />Mid channel bar <br /> <br />Primary river course, laminar flow <br /> <br />Separated from the main channel, lower water velocities <br /> <br /> <br />than the main channel <br /> <br />Separated from the main channel, water velocity varies with <br /> <br /> <br />discharge <br />Areas along the channel margin with counter current flow <br /> <br />Deeper and slower water relative to main channel runs <br /> <br />Distinctly shallower and faster water relative to main <br /> <br />channel runs, may be in the main channel or in side channels <br /> <br />Main channel areas exposed during lower discharges may be <br />composed of coarse or fine substrates <br /> <br />Main channel run <br />Backwater <br /> <br />Side channel <br /> <br />Eddy <br />Pool <br />Riftle <br /> <br />13 <br />