Response of walleye and yellow perch to water-level fluctuations in glacial lakes

Fisheries Management and Ecology
By: , and 

Links

Abstract

The influence of water levels on population characteristics of yellow perch, Perca flavescens (Mitchill), and walleye, Sander vitreus (Mitchill), was evaluated across a range of glacial lakes in north-eastern South Dakota, USA. Results showed that natural variation in water levels had an important influence on frequently measured fish population characteristics. Yellow perch abundance was significantly (P<0.10) greater during elevated water levels. Yellow perch size structure, as indexed by the proportional size distribution of quality- and preferred-length fish (PSD and PSD-P), was significantly greater during low-water years, as was walleye PSD. Mean relative weight of walleye increased significantly during high-water periods. The dynamic and unpredictable nature of water-level fluctuations in glacial lakes ultimately adds complexity to management of these systems.

Study Area

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Response of walleye and yellow perch to water-level fluctuations in glacial lakes
Series title Fisheries Management and Ecology
DOI 10.1111/fme.12047
Volume 21
Issue 2
Year Published 2014
Language English
Publisher John Wiley & Sons, Inc.
Contributing office(s) Coop Res Unit Leetown
Description 7 p.
First page 89
Last page 95
Country United States
State South Dakota
Other Geospatial Bitter Lake, Cattail-Kettle Lake, Clear Lake, Enemy Swim Lake, Kampeska Lake, Lynn Lake, Poinsett Lake, Roy Lake, Waubay Lake