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Longitudinal patterns in abundance of the zebra mussel (Dreissena polymorpha) in the upper Mississippi River

Journal of Freshwater Ecology

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Abstract

We assessed the abundance of zebra mussels in the upper Mississippi River during 1995, four years after they were first found in the river. Samplers were deployed from May 30 to October 19, 1995, at 19 lock and dam facilities in the upper Mississippi River from Minneapolis, Minnesota, to Muscatine, Iowa. Zebra mussels were found at every lock and dam except the two sites farthest upstream (Minneapolis). Generally, densities of zebra mussels were greatest at sites 161 km and farther downstream of the Minneapolis area. The greatest mean mussel density was 11,432/m(2) at Fulton, Illinois.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Longitudinal patterns in abundance of the zebra mussel (Dreissena polymorpha) in the upper Mississippi River
Series title:
Journal of Freshwater Ecology
Volume
12
Issue:
2
Year Published:
1997
Language:
English
Publisher:
U.S. Geological Survey
Contributing office(s):
Upper Midwest Environmental Sciences Center
Description:
pp. 235-238
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Freshwater Ecology
First page:
235
Last page:
238