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A DECISION ANALYSIS FOR MULTISPECIES HARVEST MANAGEMENT OF LAKE HURON COMMERCIAL FISHERIES

Designing a harvest strategy for a multispecies fishery is complex   and requires an assessment of both direct (e.g., bycatch) and   indirect (via food-web dynamics) effects of the harvest of one   species on the dynamics of other species. We propose to assist   managers in evaluating alternative multispecies harvest strategies   by using a decision analysis approach that involves stakeholders and   includes a food-web model (using Ecopath with Ecosim) of the Lake   Huron coldwater fish community and fishery. Our objectives are: (1)   Determine an appropriate set of management objectives and harvest   strategy options for the Lake Huron coldwater commercial fishery and   identify the key uncertainties about this system that limit our   ability to make confident predictions; (2) Develop a food-web model   for the Lake Huron coldwater fish community that reflects our   understanding of trophic interactions within this community as well   as key environmental drivers of these interactions; (3) Incorporate   a multispecies commercial fishery into the food-web model to   simulate the effects of alternative harvest strategies that result   from completion of objective 1; (4) Critically assess the   consequences of uncertainties identified in objective 1 on expected   harvest policy performance by using alternative parameterizations of   the food-web model; (5) Provide stakeholders with an evaluation of   the relative performance of a range of harvest policy options   measured in terms of their success at achieving the management   objectives identified through completion of objective 1.

Status
In progress
Type
Project
Start Date
End Date
Researchers
Michael JonesPrincipal Investigator
Associated with 3 projects
Brian IrwinResearcher
Associated with 1 projects
Agencies
Great Lakes Fishery Commission $ 128,494.00USDEstimates

Funding 54 projects for a total of $5,089,137.00
Scope of Study
Literature / Existing Data
Theoretical
Scale of Phenomena
Ecosystem
Processes
Natural Ecological Processes
Resource Management
Fisheries
Lake Basin Connecting Channels
Lake Huron

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