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A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2022 random stratified trawl survey
The annual random stratified trawl survey was undertaken in Division 58.5.2 in the vicinity of Heard Island and McDonald Islands during April 2022. Based on data from this survey, this paper provides a preliminary assessment for mackerel icefish (Champsocephalus gunnari) population structure, abundance and yield in Division 58.5.2 using standard CCAMLR methods (CMIX and Generalized Yield Model).
The 2022 survey showed a large 3+ cohort in the population and a high biomass. Based on the Grym implementation, catches of 2 616 t in the 2022/23 season and 1 857 t in the 2023/24 season satisfy the CCAMLR decision rules.
Fisheries Research & Development Corporation
Publication titleCommission for the Conservation of Antarctic Marine Living Resources
Department/SchoolInstitute for Marine and Antarctic Studies
Place of publicationHobart, Tasmania
Event titleCommission for the Conservation of Antarctic Marine Living Resources