Program(s) in charge: Ecosystem & Bycatch Program
Click to see projects by theme, goal or target:
- To develop a spatially-explicit model for quantifying the cumulative impact of multiple fisheries on data-limited bycatch species in the EPO
- To use the model to prioritize potentially vulnerable species for further research and/or management
- To design the model in a user-friendly format to maximize uptake and utilization by IATTC CPCs
- IATTC is committed, through the Antigua Convention, to ensure the long-term sustainability of all target and associated species impacted by EPO tuna fisheries.
- Many associated (i.e. bycatch) species lack detailed biological and fisheries data for stock assessment, so data-limited approaches required to identify and assess the most vulnerable species.
- Productivity-Susceptibility Analysis (PSA) has been widely used, but it cannot provide a quantitative measure of risk, nor can it assess cumulative impacts of multiple fisheries.
- Relevance for management
- The new model will more reliably identify potentially vulnerable bycatch species and assess their status under current fishing effort regimes to better guide managers
- 48 months
- Workplan and status
- Jan-Apr 18: complete the development of a preliminary model
- May 18: present preliminary model and results at SAC-09.
- Jun-Dec 18: continue model development with feedback from CPCs
- Jan-Feb 19: Finalize model and user-friendly module
- Mar-May 19: Finalize assessment of cumulative impacts of EPO tuna fisheries for all bycatch species to identify most vulnerable species.
- May 19: present final model and assessment results at SAC-10.
- External collaborators
- Presentations at SAC-09 and SAC-10
- Scientific journal publication
- Procedure, if successful, to be used annually to assess the vulnerability of bycatch species in the EPO.