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

  • Q&A: Another way to measure river health

    Feature story
    There’s another way of measuring the health of rivers – the health of invertebrate populations that need them, says John Quinn, NIWA Chief Scientist, Freshwater
    and Estuaries.
  • Erica Williams - Where the water is clean

    Feature story
    Erica Williams' story starts with the website of Moerewa School, where pupil Tyra-Lee explains her connection to a very special place in her small Far North town.
  • Raising the bar for swimmable rivers

    Feature story
    The government has released the ‘Clean Water’ package of proposed reforms, aimed at making more of our rivers swimmable. But how is ‘swimmable’ to be measured, and do these measures stack up?
  • Calculated risk

    Feature story
    Imagine if you could foresee what would happen to your home in a severe flood or tsunami, and then work out how to prevent or reduce the impact before any such event occurred.
  • Dairy turns the corner

    Feature story
    NIWA's Freshwater and Estuaries Chief Scientist Dr John Quinn believes the dairy industry has been responsive in the tools it has adopted to reduce its impact on waterways.
  • New Zealand joins global seabed mapping initiative

    News article
    New Zealand joins global seabed mapping initiative
  • NIWA invests $18 million  in New Zealand’s future

    Media release
    NIWA is placing the future of New Zealanders at the heart of its operation by investing in new supercomputers that will significantly enhance scientists’ abilities to solve crucial issues facing the country.
  • Scientists eavesdrop on endangered dolphins

    News article
    The critically endangered Māui dolphin is getting a helping hand from scientists this month who are beginning a year-long research project to listen in on them.
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    Tuna - glass eels

    Glass eels (about 5.5 to 7.0 cm) arrive in fresh water during spring, especially during September and October, although they may be present from July to December.
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    Software tools

    NIWA develops and supplies custom software for environmental analysis and modelling.
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    New Zealand's Marine Realm

    News article
    NIWA has transformed 1.5 million square kilometres of data into the most accurate and detailed map yet of the land underneath the sea around New Zealand.