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    Results from the 2023 Random Stratified Trawl Survey in the Waters Surrounding Heard Island in Division 58.5.2

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    Document Number:
    WG-FSA-2023/49
    Author(s):
    Maschette, D., T. Lamb, J. Cleeland, C. Appert, C. Masere and P. Ziegler
    Submitted By:
    Mr Dale Maschette (Australia)
    Approved By:
    Dr Philippe Ziegler (Australia)
    Agenda Item(s)
    WG-FSA-2023 - 4.2.1 - Champsocephalus gunnari in Division 58.5.2
    Abstract

    During March 2023, the annual random stratified trawl survey (RSTS) around Heard Island and McDonald Islands (HIMI) was conducted in CCAMLR Division 58.5.2, with the completion of 163 stations. The survey was conducted on the FV Cape Arkona. Sampling protocols such as the design and the duration of the hauls were similar to recent surveys, but with a

    new set of randomly selected haul stations. The catch of Patagonian toothfish (Dissostichus eleginoides) was 66.8 t. The catch of mackerel icefish (Champsocephalus gunnari) was 16 t. Biomass estimates for most of the managed by-catch species were similar to the survey averages in recent years. Length and weight measurements were taken for 16,728 fish.