Water Quality in the Western Lake Michigan Drainages, Wisconsin and Michigan, 1992-95

Major Issues and Findings, Environmental Setting and Land Use Influence Aquatic Life Figures

Biological indexes for habitat (Great Lakes Environmental Assessment, GLEAS; Michigan Department of Natural Resources, 1991), algae (Index of Biological Integrity, IBI; Bahls, 1993), benthic invertebrates (Hilsenhoff Biotic Indexes, HBI and FBI; Hilsenhoff, 1987), and fish (Index of Biological Integrity, IBI; Lyons, 1992 and Lyons and others, 1996) indicate the water quality of streams in the study area. Total score determined by assigning point values for each quality score as shown in parentheses. Abbreviations: Ag, agriculture; F, forest; W, wetland

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