Seasonal Variation in Weight-Length Relationships of Largemouth Bass in a 3-Hectare Reservoir

Authors

Michael J. VanDenAvyle, Iowa State University
Kenneth D. Carlander, Iowa State UniversityFollow

Document Type

Research

Keywords

Largemouth bass, Micropterus salmoides, Weight-length relationship, Condition factor

Abstract

Lengths and weights of age 0, I, and II largemouth bass were collected during two growing seasons to evaluate seasonal trends in weight-length relationships. Average K(TL) declined significantly between August 1971 and April 1972, but significant growth in length occurred during the interval. In 1972, K(TL) increased from April to July and remained high into November. Condition was better in 1972 than in 1971 when the population density was greater. Monthly estimates of the coefficient of condition, K(TL), and weight-length regressions were both required to interpret seasonal changes. Weight-length regressions calculated over longer collection periods in which K(TL) changed significantly generally did not represent the populations. Average K(TL) provided meaningful comparisons of condition only when monthly weight-length regressions indicated isometric growth.

Publication Date

March 1977

Journal Title

Proceedings of the Iowa Academy of Science

Volume

84

Issue

2

First Page

35

Last Page

38

Copyright

©1977 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

VanDenAvyle, Michael J. and Carlander, Kenneth D. (1977) "Seasonal Variation in Weight-Length Relationships of Largemouth Bass in a 3-Hectare Reservoir," Proceedings of the Iowa Academy of Science, 84(2), 35-38.
Available at: https://scholarworks.uni.edu/pias/vol84/iss1/8