Shawn P. Sitar, Michael J. Seider, Mark P. Ebener, Stephen C. Chong, Cory A. Goldsworthy, Ian Harding, S. Ben Michaels, Seth A. Moore, Thomas Pratt, Bradley A. Ray
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Synthesis of recent research and attributes of recovered lean Lake Trout populations in Lake Superior, 1993–2022
ObjectiveThis purpose of this paper is to describe the characteristics of recovered Lake Trout Salvelinus namaycush populations in Lake Superior by describing its population dynamics, ecology, and recent research and management activities since 1993, when Lake Trout were declared rehabilitated.MethodsData from commercial fisheries, recreational fisheries, agency stocking reports, and natural resource agency fishery‐independent survey data along with published research findings on lean Lake Trout in Lake Superior between 1993 and 2022 were synthesized and reported.ResultCurrently, Lake Trout populations are self‐sustaining and lightly exploited with only a few areas with elevated total mortality rates. The total annual mortality has been far below the target maximum range of 42–45%. Furthermore, stocking of hatchery Lake Trout is no longer necessary.ConclusionWe have learned from research and management experience that the regulatory role of Lake Trout in the Great Lakes is critical to proper ecosystem function. Thus, continued commitment from natural resource agencies to cooperate and implement effective management actions is required to preserve the accomplishments of lakewide recovery of Lake Trout populations.
期刊介绍:
The North American Journal of Fisheries Management promotes communication among fishery managers with an emphasis on North America, and addresses the maintenance, enhancement, and allocation of fisheries resources. It chronicles the development of practical monitoring and management programs for finfish and exploitable shellfish in marine and freshwater environments.
Contributions relate to the management of fish populations, habitats, and users to protect and enhance fish and fishery resources for societal benefits. Case histories of successes, failures, and effects of fisheries programs help convey practical management experience to others.