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

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    Tuna - identification

    There are several ways to tell the three New Zealand eel species apart.
  • Science

    An overview of Science at NIWA
  • Critter of the week

    In this blog series, we feature a new critter from our expansive invertebrate collection including pictures of specimens in their unique habitat. The blogs also feature news, links and fun facts that showcase New Zealand’s fascinating marine fauna.
  • Assessment of crop and tree species growing potential using climate, soil and topographic information

    Research Project
    This project demonstrates how to assess high value alternative land-use options by means of a quantitative analysis of the growing potential of selected niche crops and tree species.
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    Piharau

    Piharau/kanakana are an important mahinga kai species and a prized delicacy for many Māori.
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    Invertebrates and stream health

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    Map South

    Education Resource
    Most of this climate zone is characterised by cool coastal breezes, and absence of shelter from the unsettled weather that moves over the sea from the south and southwest.
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    What do we measure?

    Research Project
    A range of physical and chemical variables are measured in the NRWQN.
  • Urbanisation

    Aotearoa’s main urban areas cover approximately 2% of total available land.
  • Education and information

    Education Resource
    Explore our education and information section to find out about climate and climate change, weather, our atmosphere, estuaries and more.
  • Products

    Service
    Here is our complete range of products.