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MSE Performance Metrics and Tentative Results Summary. Joint Technical Committee Northwest Fisheries Science Center, NOAA Pacific Biological Station, DFO School of Resource and Environmental Management, SFU. Outline. Review of MSE Graphics of preliminary results Omniscient case
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MSE Performance Metrics and Tentative Results Summary Joint Technical Committee Northwest Fisheries Science Center, NOAA Pacific Biological Station, DFO School of Resource and Environmental Management, SFU
Outline • Review of MSE • Graphics of preliminary results • Omniscient case • Annual case • Biennial case • Key performance statistics • discussion
Objectives of the MSE • Use the 2012 base case as the operating model. • As defined in May 2120 • Evaluate the performance of the harvest control rule • Evaluate the performance of annual, relative to biennial survey frequency.
Performance Statistics • Conservation objectives • Yield objectives • Stability objectives • Operating Model • Stock dynamics • Fishery dynamics • True population Feedback Loop Data Catch • Management Strategy • Data choices • Stock Assessment • Harvest control rule Organization of MSE Simulations
Performance Measures • Choose metrics that capture the tradeoffs between conservation, variability in catch and total yield for specific time periods. • Define short, medium and long time periods as Short=2013-2015, Medium=2016-2020, Long=2021-2030. • The main conservation metric is the proportion of years depletion is below 10% • The main variability in catch metric is the Average Annual Variability in catch for a given time period. • For yield we used the median average catch • We’ve chosen what we think are the top six. We’d like to discuss if others are needed.
Perfect Information Case • We created a reference, perfect information case where we simulated data with no error • The purpose of the perfect information case was to provide: • Separate observation vs process error i.e. variable data don’t affect management procedure performance • a reference to compare the annual/biennial survey cases to.
