Seasonal thermal ecology of adult walleye (Sander vitreus) in Lake Huron and Lake Erie

Journal of Thermal Biology
By: , and 



The purpose of this study was to characterize thermal patterns and generate occupancy models for adult walleye from lakes Erie and Huron with internally implanted biologgers coupled with a telemetry study to assess the effects of sex, fish size, diel periods, and lake. Sex, size, and diel periods had no effect on thermal occupancy of adult walleye in either lake. Thermal occupancy differed between lakes and seasons. Walleye from Lake Erie generally experienced higher temperatures throughout the spring and summer months than did walleye in Lake Huron, due to limnological differences between the lakes. Tagged walleye that remained in Saginaw Bay, Lake Huron (i.e., adjacent to the release location), as opposed to those migrating to the main basin of Lake Huron, experienced higher temperatures, and thus accumulated more thermal units (the amount of temperature units amassed over time) throughout the year. Walleye that migrated toward the southern end of Lake Huron occupied higher temperatures than those that moved toward the north. Consequently, walleye that emigrated from Saginaw Bay experienced thermal environments that were more favorable for growth as they spent more time within their thermal optimas than those that remained in Saginaw Bay. Results presented in this paper provide information on the thermal experience of wild fish in a large lake, and could be used to refine sex- and lake-specific bioenergetics models of walleye in the Great Lakes to enable the testing of ecological hypotheses.

Publication type Article
Publication Subtype Journal Article
Title Seasonal thermal ecology of adult walleye (Sander vitreus) in Lake Huron and Lake Erie
Series title Journal of Thermal Biology
DOI 10.1016/j.jtherbio.2015.08.009
Volume 53
Year Published 2015
Language English
Publisher Elsevier Science
Publisher location New York, NY
Contributing office(s) Great Lakes Science Center
Description 9 p.
First page 98
Last page 106
Online Only (Y/N) N
Additional Online Files (Y/N) N
Google Analytic Metrics Metrics page
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