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

  • Takahe Valley monitoring station

    Monthly

    Publication series
    Monthly climate summaries from December 2001 to the present.
  • Analysis of water quality trends

    NIWA has developed a powerful software tool for the analysis of water quality data.
  • Water abstraction and agriculture

    How do agricultural activities potentially influence water flows?
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    Tuna - customary fisheries

    Māori have an extensive knowledge of the ecology of freshwater eels, and have maintained their customary fisheries for several centuries.
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    Exploration sector

    Hydrocarbons, although requiring increasingly responsible use, are still an essential part of our modern economy. NIWA has provided survey and consultancy services related to the exploration of offshore mineral resources for thirty years.
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    Software tools

    NIWA develops and supplies custom software for environmental analysis and modelling.
  • LakeSPI diver

    LakeSPI: Keeping tabs on lake health

    Software Tool/Resource
    The condition of many NZ lakes is under threat from land-use changes and the invasion of alien aquatic plants.
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    Map North

    Education Resource
    This is a sub-tropical climate zone, with warm humid summers and mild winters.
  • Critter of the Week: The Gorgon’s Head - Gorgonocephalus

    A basket star was the first reported animal trawled up from the deep sea back in the early 1800s so they have a spot in the history books of deep ocean exploration.
  • Stepping into the river

    Feature story
    NIWA discusses, in depth, this year's most asked question—what is happening to our fresh waterways?
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    Summer Series 6: Nippy creatures that share your swim

    News article
  • Freshwater fish species list

    A list all of New Zealand's freshwater fish species.