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    Results from the 2025 random stratified trawl survey in the waters surrounding Heard Island in Division 58.5.2

    Request Meeting Document
    Document Number:
    WG-FSA-2025/18
    Author(s):
    Coghlan, A., D. Maschette, T. Lamb, C. Masere and P. Ziegler
    Submitted By:
    Dr Philippe Ziegler (Australia)
    Approved By:
    Dr Philippe Ziegler (Australia)
    Accessibility Categories
    Request permission to release each time (RP)
    Agenda Item(s)
    WG-FSA-2025 - 3 - Icefish
    Abstract

    During March 2025, 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 69.9 t. The catch of mackerel icefish (Champsocephalus gunnari) was 23.8
    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 16,362 fish.