On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Fisheries

Balancing the sustainability of our fisheries stocks and the impacts of fishing on the environment with the economic opportunities

  • Availability of toothfish to predators – sea ice-based survey

    Sea ice-based toothfish surveys have been carried out in McMurdo Sound since 2014.
  • Antarctic fisheries research publications

    A bibliography of some of the journal papers and CCAMLR Working Group papers published about the toothfish fishery.
  • Spatial management of the Ross Sea

    The fishery is managed differently depending on the region and specific environmental protection and fishery management objectives in the region.
  • Ecosystem effects of fishing

    Find out about the role of toothfish in the ecosystem and the potential effects of fishing.
  • The Ross Sea shelf survey

    A survey series in the Southern Ross Sea was started in 2011 to index juvenile abundance.
  • Antarctic toothfish stock assessment

    CCAMLR sets annual catch limits, using a stock assessment model.
  • The toothfish fishery

    Find out more about the toothfish fishery, including its history, catch, sea ice influences and fishery operational requirements.
  • Toothfish life history

    Find out about the biology of the Antarctic toothfish.
  • Management of Antarctic fisheries

    Find out more about fisheries in the Southern Ocean, New Zealand's role, and fisheries management.
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    Even more flexibility with fisheries software CASAL II

    Feature story
    NIWA-developed software is becoming the international standard in the assessment and management of fish stocks.
  • Ecosystem modelling

    Research Project
    At NIWA, we’ve developed an Atlantis model for the Tasman and Golden Bays region. We’re also developing one for the Chatham Rise.
  • Summer Series Week 2: Sharks of summer

    News article
    Everyone knows they’re out there, but how well do you know your sharks? NIWA looks at four of the most common sharks you’re likely to spot this summer.