Alaska Fisheries Science Center 2020 Groundfish Seminar Series - Zack Oyafuso
Optimizing multispecies stratified survey designs for Gulf of Alaska groundfishes.
In designing and performing surveys of population abundance, fisheries monitoring programs often struggle to determine the sampling intensity and design required to achieve their objectives, and this problem greatly increases in complexity for multispecies surveys with inherent tradeoffs among species. To address these issues, I developed a flexible stratified survey design optimization using a genetic algorithm that optimizes both the stratification as well as the optimal effort allocation across strata subject to pre-specified precision targets. I will present this framework using the Gulf of Alaska groundfish bottom trawl survey as a case example.
Webexmeeting number: 199 727 5307
Meeting Password: groundfish
Or by phone: 1 (415) 527-5035 Access code: 199 727 5307