Within-Well Patterns in Bigeye Tuna Catch Composition and Implications for Purse-Seine Port-Sampling and Catch Estimation for the Eastern Pacific Ocean
June 13, 2024
Results suggest that both the type of within-well sampling and the level of within-well sampling coverage have important implications for the variance on bigeye tuna catch estimates.
In response to concerns about the stock status of bigeye tuna (BET) in the Eastern Pacific Ocean, the Inter-American Tropical Tuna Commission adopted additional management measures for BET in 2021, including an individual-vessel catch threshold system for the purse-seine fishery. Development of an enhanced port-sampling program for estimation of trip-level BET catch was also mandated to support member countries and their purse-seine vessels in their conservation efforts. To this end, a pilot study was conducted in the ports of Manta and Posorja, Ecuador, in 2022.
Lennert-Cody CE, De La Cadena C, McCracken M, Chompoy L, Vogel NW, Maunder MN, Wiley BA, Nieto EA, Aires-da-Silva A 2024. Within-well patterns in bigeye tuna catch composition and implications for purse-seine port-sampling and catch estimation for the Eastern Pacific Ocean Fisheries Research. 277: 107079.
https://doi.org/10.1016/j.fishres.2024.107079.