Abstract
Samples were collected from a railroad ferry between Milwaukee, Wisconsin and Ludington, Michigan, from 27 May, 1970, to 20 October, 1971, to determine the spatial and temporal distribution of primary production and several physical and chemical variables. Conductivity, silica, total P, soluble reactive P, plant pigments, and C uptake exhibited inshore-offshore differences, and all but silica were highest at the Wisconsin inshore station, thus suggesting nutrient enrichment of Lake Michigan by Milwaukee. Temperature, pH, phenolphthalein alkalinity, nitrate, silica, plant pigments, and C uptake showed varying degrees of seasonal change. A bimodal seasonal abundance of phytoplankton was revealed.
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Contribution No. 82, Center for Great Lakes Studies, The University of Wisconsin-Milwaukee, Milwaukee, Wisconsin, 53201.
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Rousar, D.C. Seasonal and spatial changes in primary production and nutrients in Lake Michigan. Water Air Soil Pollut 2, 497–514 (1973). https://doi.org/10.1007/BF00585093
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DOI: https://doi.org/10.1007/BF00585093