Upper Midwest Environmental Sciences Center

Summary of Monitoring Findings for Fiscal Year 2002: Figure 18
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Summary of Monitoring Findings for Fiscal Year 2002
Figures

Figure 18. Mean midge (Chironomidae) abundance from 1992 to 2002, Upper Mississippi River System.
Mean midge (Chironomidae) abundance from 1992 to 2002, Upper Mississippi River System.
January 5, 2004
Page Last Modified: April 17, 2018