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

Journal Article · Mon Nov 01 04:00:00 EST 1982 · Trans. Am. Fish. Soc.; (United States)

DOI:https://doi.org/10.1577/1548-8659(1982)111<761:GACOBI>2.0.CO;2· OSTI ID:6169476

Wiener, J G ^[1]; Hanneman, W R

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1. Columbia National Fisheries Research Lab., La Crosse, WI

Growth and condition of bluegills (Lepomis macrochirus) from five acidic lakes (pH 5.1-6.0) and six circumneutral lakes (pH 6.7-7.6) 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.

• OSTI ID: 6169476
• Journal Information: Trans. Am. Fish. Soc.; (United States), Journal Name: Trans. Am. Fish. Soc.; (United States) Vol. 111:6; ISSN TAFSA
• Country of Publication: United States
• Language: English

Related Subjects

560305* -- Chemicals Metabolism &amp; Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMAL GROWTH
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
FEDERAL REGION V
FISHES
GROWTH
LAKES
NORTH AMERICA
PH VALUE
POPULATION DENSITY
SURFACE WATERS
USA
VERTEBRATES
WISCONSIN