Fisheries

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

Kaharoa II

Kaharoa II

The state-of-the-art science platform has the capability of a larger vessel for a vast array of applications across the marine environment. Available for charter, Kaharoa II is a cost-efficient vessel with the latest equipment and technologies to enable world-class science

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    MICE model of predator-prey interactions in fisheries stock assessment

    MICE (Models of Intermediate Complexity) is a type of ecosystem model that is question-driven, and contains a limited number of components and ecological processes.

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    ROMS coupled physical-biologeochemical modelling

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    Ecosystem Modelling at NIWA

    At NIWA, we consider all components of the marine ecosystem important when trying to better understand the role of dynamic, ecosystem processes on the distribution and abundance of marine organisms in New Zealand’s marine environments.

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    Aquatic invertebrate traits database

    Approximately 500 Aquatic invertebrate taxa are described in this database, made available to assist with the identification of specimens.
    Fisheries

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    Double trouble from oyster pathogens

    Feature story
    08 October 2017
    The spread of Bonamia ostreae from Marlborough Sounds to oyster farms in Big Glory Bay (Stewart Island) could spread to the valuable wild oyster population.
    Fisheries

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    Revealing toothfish secrets

    Feature story
    05 October 2017
    The Ross Sea Marine Protected Area (MPA) in the Southern Ocean will help further research into the ecology of Antarctic toothfish.
    Antarctica
    Fisheries

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    Scientist makes new homes for baby paua

    Media release
    15 August 2017
    Concrete structures key to restoring the paua population wiped out by earthquake.
    Fisheries

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    Hapū joins forces with NIWA in tuna research

    Feature story
    20 June 2017
    Local hapū and NIWA are working together to find out more about juvenile freshwater eels or tuna in streams connecting to the Wairua River in the Wairoa catchment in Northland.
    Fisheries
    Te Kūwaha and Māori

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    Tuna - commercial fisheries

    Commercial eel fishery in New Zealand began in earnest in the 1960s and expanded rapidly until the early 1970s
    Fisheries

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    Atlantis ecosystem model

    Atlantis is a 3D, spatially-explicit, trophodynamic ecosystem model that integrates biology, physics, chemistry and human impacts to provide a synoptic view of marine ecosystem function.
    Fisheries

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    Tuna - solutions: upstream passage for elvers at large barriers

    The need to provide upstream passage facilities for ensuring the long term sustainability of migratory freshwater fish populations is now well recognised.
    Fisheries
    Te Kūwaha and Māori

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    Climate Change Vulnerability Assessment (CCVA)

    Service
    To prepare for changes in climate, our freshwater and oceans decision-makers need information on species vulnerability to climate change.
    Climate change
    Climate change adaptation
    Estuaries