Influence of lake surface area and total phosphorus on annual bluegill growth in small impoundments of central Georgia

Southeastern Naturalist
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Abstract

The relationships between environmental variables and the growth rates of fishes are important and rapidly expanding topics in fisheries ecology. We used an informationtheoretic approach to evaluate the influence of lake surface area and total phosphorus on the age-specific growth rates of Lepomis macrochirus (Bluegill) in 6 small impoundments in central Georgia. We used model averaging to create composite models and determine the relative importance of the variables within each model. Results indicated that surface area was the most important factor in the models predicting growth of Bluegills aged 1–4 years; total phosphorus was also an important predictor for the same age-classes. These results suggest that managers can use water quality and lake morphometry variables to create predictive models specific to their waterbody or region to help develop lake-specific management plans that select for and optimize local-level habitat factors for enhancing Bluegill growth.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Influence of lake surface area and total phosphorus on annual bluegill growth in small impoundments of central Georgia
Series title Southeastern Naturalist
DOI 10.1656/058.016.0406
Volume 16
Issue 4
Year Published 2017
Language English
Publisher Eagle Hill Institute
Contributing office(s) Coop Res Unit Atlanta
Description 21 p.
First page 546
Last page 566
Country United States
State Georgia
Other Geospatial Charlie Elliot Wildlife Center