In this project, the research team will develop a decision-support tool based on a management strategy evaluation (MSE) framework for the Gulf of Mexico red snapper fishery. The tool will help quantify the risks and trade-offs among the various alternative long-term management strategies and potential short-term regulations that might be used for the rebuilding and sustainable management of the Gulf of Mexico red snapper resource. See Background details.
Two versions have been developed for this Red Snapper MSE tool. The Standard Version is oriented to users with limited MSE background, while the Professional Version faces to stock assessment stock scientists and managers who want to dig deeper into the technical details. The output formats for both the Standard and the Professional Versions are the same, so that they can be compared horizontally.
Both, the Standard and Professional Versions, can test and compare alternative management strategies under:
|Standard Version (shoutcut MSE for general public)||Professional Version (full MSE for stock assessment scientists)|
|Initial setting||Must be the same with the latest stock assesment.||Can be different from the latest stock assesment.|
|Natural mortality||Must be the same among years.||Can be different from year to year (under construction).|
|Recruitment||Either from historical data or fixed Beverton-Holt Model||Can also modify Beverton-Holt Model parameters.|
|Stock mixing assumption||No mixing.||Mixing occurs between the East and West Gulf (under construction).|
|Assesment error||Add errors to the "true" age-based abundance and fishing mortality.||Generate a set of survey data, then input that into SS3 to get updated fisheries and other related parameters (under construction).|
|Selectivity setting||Must be the same with the latest stock assesment.||The asymptote of the selectivity curve can be modified (under construction).|
|Visitors||Registered Users||Saved Management Scenarios|