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Assessing the potential for fish predation to impact zebra mussels (Dreissena polymorpha): Insight from bioenergetics models

Ecology of Freshwater Fish

By:
, , and
DOI: 10.1111/j.1600-0633.2004.00033.x

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Abstract

Rates of annual food consumption and biomass were modeled for several fish species across representative rivers and lakes in eastern North America. Results were combined to assess the relative potential of fish predation to impact zebra mussels (Dreissena polymorpha). Predicted annual food consumption by fishes in southern waters was over 100% greater than that in northern systems because of warmer annual water temperatures and presumed increases in metabolic demand. Although generally increasing with latitude, biomasses of several key zebra mussel fish predators did not change significantly across latitudes. Biomasses of some less abundant fish predators did increase significantly with latitude, but increases were not of the magnitude to offset predicted decreases in food consumption. Our results generally support the premise that fishes in rivers and lakes of the southern United States (U.S.) have inherently greater potential to impact zebra mussels by predation. Our simulations may provide a partial explanation of why zebra mussel invasions have not been as rapid and widespread in southern U.S. waters compared to the Great Lakes region. ?? Blackwell Munksgaard, 2004.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Assessing the potential for fish predation to impact zebra mussels (Dreissena polymorpha): Insight from bioenergetics models
Series title:
Ecology of Freshwater Fish
DOI:
10.1111/j.1600-0633.2004.00033.x
Volume
13
Issue:
2
Year Published:
2004
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Ecology of Freshwater Fish
First page:
85
Last page:
95