Alaska Fisheries Science Center 2020 Groundfish Seminar Series - Matt Siskey
Effects of otolith-informed spatial misspecification on assessment model performance
Understanding how population structure has been altered throughout the exploitation history of a stock is a key element to sustainable fisheries management and future rebuilding plans of depleted stocks. This study used otolith-derived substockand contingent compositional information of winter flounder (Pseudopleuronectesamericanus) to inform alternative operating models, and explore the effect of stock assessment model misspecification on the perception of stock status and the ability for simulated populations to recover from a depleted state. The findings of this study suggest that, when identified, information on local population structure and the relative contributions of substockareas to global recruitment should be integrated into stock assessment and management frameworks to promote recovery and reduce bias associated with derived quantities.
Webexmeeting number: 199 727 5307
Meeting Password: groundfish
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