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Growth and condition of bluegills in Wisconsin lakes: effects of population density and lake pH

Transactions of the American Fisheries Society

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Abstract

Growth and condition of bluegills epomis macrochirusfrom five acidic lakes (pH 5.1-6.0) and six circumneutral lakes (pH 6.7-7.5) in northern Wisconsin were compared. Although mean condition factors and mean back-calculated total lengths at ages 1 to 4 varied significantly among lakes, the differences were not related to lake pH. Rather, the ranks of mean condition factors and back-calculated lengths at ages 2, 3, and 4 were negatively correlated with relative density of bluegills among the lakes. Because of the dominating effect of density, growth rates and condition factors are not useful as indicators of chronic, pH-related stress on bluegill populations.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Growth and condition of bluegills in Wisconsin lakes: effects of population density and lake pH
Series title:
Transactions of the American Fisheries Society
Volume
111
Issue:
6
Year Published:
1982
Language:
English
Publisher:
U.S. Fish and Wildlife Service
Contributing office(s):
Upper Midwest Environmental Sciences Center
Description:
pp. 761-767
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
761
Last page:
767
Number of Pages:
7