Upper Midwest Environmental Sciences Center
 |
| Home/ Overview/ Science Programs/ Data Library/ Products and Publications/States/ Rivers/Teachers and Students/ Links/ Contact/ Search |
Summary 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
|
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.umesc.usgs.gov/reports_publications/ltrmp/2001/summary_findings/table02.html
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified:
October 2, 2007
