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Fish In Bioassessments
Figure 1
Figure 1. The figure above shows the use of fish in bioassessments (2001
base year).
Fish were used in 41 state and tribal programs.
From "Summary of Biological Assessment
Programs and Biocriteria Development for States, Tribes, Territories,
and Interstate Commissions: Streams and Wadeable Rivers (EPA-822-R-02-048)"