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Influence of summer water-level variability on St. Lawrence River-wetland fish assemblages

Journal of Freshwater Ecology

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Abstract

Water-level and associated variability are substantial influences on wetland and shallow aquatic communities. The Akwesasne Wetland Complex is an extensive St. Lawrence River system affected by water regulation. The responses of fish assemblages to short-term summer water-level variation were examined throughout this section of the St. Lawrence River and its tributaries. An influence of water-level variability was detected on abundance of three common species [bluntnose minnow (Pimephales notatus), rock bass (Amboplites rupestris), and white sucker (Catastomus commersonii)] and explained 30-44% of variation. This influence has implications for water regulation and natural resource management, and a larger scope evaluation may reveal more extensive effects.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Influence of summer water-level variability on St. Lawrence River-wetland fish assemblages
Series title:
Journal of Freshwater Ecology
Volume
23
Issue:
4
Year Published:
2008
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
513
Last page:
517
Number of Pages:
5