A Qualitative and Quantitative Study of the Bacteriological Quality of Lake Red Rock and the Des Moines River between Des Moines, Iowa, and Lake Red Rock
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Oestmann, David B. (Drake University, 1973-06)Problem. Evaluation of the water quality of the Des Moines River. Iowa by sampling and analyzing the benthic macroinvertebrate community. Procedure. Artificial substrates at four stations were used to collect benthic ...