Evaluation of harassment of migrating double-crested cormorants to limit depredation on selected sport fisheries in Michigan

Abstract Diverse management techniques have been used to mitigate conflicts between humans and double-crested cormorants ( Phalacrocorax auritus ) including harassment methods supplemented by lethal take. In this study we evaluated impacts of programs to harass spring migrating cormorants on the walleye ( Sander vitreus ) fishery in Brevoort Lake and the yellow perch ( Perca flavescens ) and walleye fisheries at Drummond Island. Cormorant foraging declined significantly ( p p