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

  • The adult brood-stock hapuku at Northland's Marine Research Centre

    Aquaculture nutrition

    Service
    Nutrition underpins the performance of fish stocks in terms of health, growth (production) and reproduction.
  • Kingifsh eggs being assessed under a microscope at NIWA's Northland Aquaculture Centre

    Aquaculture Reproduction

    Service
    One of NIWA's core areas of research and consultancy services are the broodstock development of aquaculture species and breeding strategy.
  • NIWA's underwater camera, Swathcam

    Swathcam

    Service
    NIWA’s underwater camera system providing crystal clear visibility
  • Casal2 software logo

    Population modelling software Casal 2

    Software Tool/Resource
    Casal2 is an advanced software package developed by NIWA for modelling the population dynamics of marine species.
  • Image of snapper mortality research

    Fisheries stock assessments

    Service
    To get the most benefit from a fish stock in the long term, we need to maximise our yield without damaging the fish population we rely on.
  • Autonomous vessels

    Service
    Fisheries researchers combine technologies to collect more data at a lower cost.
  • 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.
  • A haul of hoki.

    Fisheries and EcoConnect

    Service
    EcoConnect provides the New Zealand fishing industry with a unique operational decision-making tool to help mitigate commercial, operational, and environmental risk.
  • Fisheries

    Spatial Population Modelling

    Service
    The Spatial Population Model (SPM) can model populations over one or two areas, as well as populations in many hundreds of areas.
  • RV Tangaroa in Wellington harbour, 2017

    Echosounder technology

    Service
    ESP3 is the main tool at NIWA for quantitative analysis of acoustic data.
  • Other research instruments

    Service
    Scientists across NIWA use specialist tools manufactured across the world to perform their research and environmental consultancy.