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Tuesday, January 30 • 6:00pm - 9:00pm
Poster Display. Movements and Habitat Use of Muskellunge in Green Bay, Lake Michigan

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AUTHORS: Robert Sheffer, Daniel Dembkowski - Wisconsin Cooperative Fishery Research Unit, Fishery Analysis Center, University of Wisconsin-Stevens Point; Steven Hogler, Wisconsin Department of Natural Resources; Daniel Isermann, U.S. Geological Survey, Wisconsin Cooperative Fishery Research Unit, Fisheries Analysis Center, University of Wisconsin-Stevens Point

ABSTRACT: Green Bay and its tributaries support a world-class fishery for trophy muskellunge that attracts anglers from across North America. The Lower Fox River and Green Bay muskellunge population is largely supported by stocking because natural recruitment is limited, possibly due to habitat limitations. While previous work has identified potential spawning locations, it is unknown whether muskellunge hatch at these locations and habitat attributes associated with successful hatching have not been determined. Our objectives are to: 1) determine the proportion of muskellunge spawning in tributaries to lower Green Bay or in Green Bay proper; 2) determine if adults return to stocking locations to spawn and 3) define habitat conditions that result in successful hatching. We will identify spawning sites of tagged muskellunge (N = 60) using radio and acoustic telemetry and conduct spawning habitat surveys. Presence or absence of eggs and larvae at spawning sites will be used to develop predictive maps of suitable habitat throughout the Green Bay ecosystem.

Tuesday January 30, 2018 6:00pm - 9:00pm CST
Ballroom C & Foyer

Attendees (5)