Implementation of Coregonine Population Viability Analysis within the Coregonine Restoration Framework – Year 3
Contributing Authors
Laura Lee (USFWS, Laura_Lee@fws.gov), John Sweka (USFWS), Brian Weidel (USGS), Andrew Honsey (USGS), Cory Brant (USGS), Karen Alofs (U of Michigan), Andrew Muir (GLCF), Amanda Ackiss (USGS), David Bunnell (USGS)
Executive Summary
An extensive review of published and raw data was performed to support the best parameterization of unstructured and structured population viability analysis (PVA) models for Lake Erie Cisco. The unstructured model was used to estimate historical population size and commercial harvest rates while the structured model was used to evaluate management actions in support of restoration. The work will serve as a template for similar efforts applied to other coregonine species, including Bloater occurring in Lake Ontario.
Outcomes
Coordination of two expert panel workshops to explore available data and potential avenues for modeling; panelists worked with the modeling team to make decisions on input parameters and modeling strategies
Presentation: Restoration Planning Models to Support Great Lakes Cisco Restoration: Population Viability Analysis of Lake Erie Cisco, Coregonine Science Webinar Series, 2 May 2025. https://www.greatlakesciscoes.org/restoration-planning-models-to-support-great-lakes-cisco-restoration/
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