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Physical factors and their influence on the mussel fauna of a main channel border habitat of the upper Mississippi River

Journal of the North American Benthological Society

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Abstract

The habitats of mussel species in a portion of the main stem of Navigation Pool 10 of the upper Mississippi River were examined. Population composition, abundance, and sediment and current preferences were measured at 186 sites in the East Channel of the pool. Although total mussel abundance varied significantly as a function of sediment and current (p less than or equal to 0.05), abundance could be predicted in only 44% of sites by discriminant analysis models. Accurate prediction of abundance for most species also was poor. Species showed little discrimination in choosing main channel habitats, but could be broadly classified into species preferring fine to medium-fine sands (e.g., Truncilla truncata and Potamilus alatus) or coarser sands (e.g., Lampsilis cardium and Truncilla donaciformis). The endangered Lampsilis higginsi was found in a broad range of habitats similar to those occupied by many of the more common species, suggesting factors other than loss of adult habitat for the rarity of this species.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Physical factors and their influence on the mussel fauna of a main channel border habitat of the upper Mississippi River
Series title:
Journal of the North American Benthological Society
Volume
9
Issue:
4
Year Published:
1990
Language:
English
Contributing office(s):
Upper Midwest Environmental Sciences Center
Description:
pp. 327-335
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of the North American Benthological Society
First page:
327
Last page:
335
Number of Pages:
9