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

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    Tuna - freshwater eels in New Zealand

    Tuna is a generic Māori word for freshwater eels. The word will be used interchangeably in this resource.
  • Biogas from pig farms

    Research Project
    Biogas from pig farms
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    Mitigation and best practice options

    Some simple steps to minimise the effects of wastewater on water quality and mahinga kai.
  • Careers - FAQs

    A list of some of the questions we get asked most frequently. If you don't see your question answered here, please get in touch.
  • Common hydrological terms

    Education Resource
    Descriptions of the common terms that explain the processes that occur in hydrology.
  • Farming and the primary sector

    Farmers are making business decisions everyday which are influenced by environmental factors. We can help farmers to improve decision-making, mitigate farm environment risk, and to become more productive, efficient, competitive and sustainable.
  • 2019/2020 Blake Ambassadors

    Internships

     
  • Raglan B, Cam-era monitoring site

    Raglan B

    Raglan B Cam-era station
  • Wave action

    Feature story
    New Zealand’s coast is sculpted by ocean waves. Some wave conditions bring joy to surfers and beachgoers, but, at other times, waves can cause major hazards at sea or along the shore.
  • Estuary origins

    In comparison to the vast span of geological time, the estuaries that we see today are very recent coastal features.
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    Mussels: more, fresher, better

    Feature story
    The seafood counter at your local supermarket has changed.