Upper Midwest Environmental Sciences Center

Summary of Monitoring Findings for Fiscal Year 2001: Table 2
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folder.gifSummary of Monitoring Findings for Fiscal Year 2001

Table 2.
Summary information on freshwater mussels from selected reaches of Navigation Pool 8 of the Upper Mississippi River obtained from Malacological Consultants and entered into an ArcView platform to create a georeferenced searchable database.

Variable
Summary
Number of reports
6
Number of sites
80
Number of samples
239
Number of live species
29
Years of collection
1977, 1996, 1997, 2001
Range of live densities (no/m2)
0 to 84
Sampling methods used
brail, diving, hand picking
Total number of individuals found
19,710
Number of federally-listed species
6
Number of Wisconsin-listed species
12
Number of Minnesota-listed species
15
Mean (range) of zebra mussels/unionid
9 (0 to 95)
Total number of observations
692

 


Page Last Modified: April 17, 2018