Response of walleye and yellow perch to water-level fluctuations in glacial lakes
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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
| 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 |
| Publication Date | July 19, 2013 |
| 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 |