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    • A Study of the Macroinvertebrate Drift in the Des Moines River 

      Parker, Craig Eber (Drake University, 1976-08)
      The problem. To determine the effects of Red Rock Dam on one segment of the aquatic fauna, the "drifting" macroinvertebrates. Procedure. Drift samples were taken at two points on the Des Moines River. One sampling station ...