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Trends In The Benthic Macroinvertebrate Community Of Saginaw Bay, Lake Huron, 1987 To 1996: Responses To Phosphorus Abatement And The Zebra Mussel, Dreissena Polymorpha, Thomas F. Nalepa, David L. Fanslow, Margaret B. Lansing, Gregory A. Lang

United States Department of Commerce: Staff Publications

Trends in benthic macroinvertebrate populations were examined in inner and outer Saginaw Bay, Lake Huron, from 1987 to 1996. These years represent the time period after phosphorus abatement, but immediately before (1987 to 1990) and after (1991 to 1996) colonization of the bay by the zebra mussel, Dreissena polymorpha. In 1987 to 1990, densities of the major macroinvertebrate groups in the inner and outer bay were not significantly different from, or were greater than, densities reported just prior to abatement efforts in the early 1970s. Oligochaete densities in the deepwater/silt region of the inner bay were trending downward between …