Upper Midwest Environmental Sciences Center

Summary of Monitoring Findings for Fiscal Year 2002: Figure 16
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Summary of Monitoring Findings for Fiscal Year 2002
Figures

Figure 16. Mean mayfly (Ephemeridae) abundance from 1992 to 2002, Upper Mississippi River System.
Mean mayfly (Ephemeridae) abundance from 1992 to 2002, Upper Mississippi River System.
January 5, 2004
Page Last Modified: April 17, 2018