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

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.