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

Coasts

NIWA aims to provide the knowledge needed for the sound environmental management of our marine resources.

Future Coasts Aotearoa

Investigating how we can successfully transform coastal lowlands threatened by relative sea-level-rise into prosperous communities.

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    Critter of the Week – Bathynomous giganteus, the giant sea slater

    The giant sea slater Bathynomus giganteus A. Milne Edwards, 1879 is an abundant isopod species of massive size from the family Cirolanidae.

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    Mesopelagic trawl - off Kermadec Islands Oct 2016

    Using a very wide net to complete a 960m deep mesopelagic trawl near the Kermadec Islands has brought up a large number and diverse range of deep water species.
    Fisheries

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    Koha a rare Hawksbill sea turtle is released back into the ocean

    Filmed from our underwater cameras, watch as Koha the turtle is released back into the ocean near Raoul Island.

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    Raoul Island whales

    During September and October Raoul Island is like Grand Central Station for humpback whales.

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    Releasing Koha the turtle at Raoul Island

    During the middle of last night we arrived at Raoul Island.

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    Easing into the Kermadec Ridge expedition

    After the flurry of activity and excitement when Koha the rehabilitated turtle came aboard, it has been a relatively quiet couple of days.

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    Kermadec voyage news

    Read the latest news and updates from the Kermadec expedition 2016.

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    Kermadec voyage blog

    Live from Tangaroa. Amelia from The Pew Charitable Trusts will keep you up-to-date with all the action from RV Tangaroa through her regular blog posts.

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    Critter of the Week – Bathynomous giganteus, the giant sea slater

    The giant sea slater Bathynomus giganteus A. Milne Edwards, 1879 is an abundant isopod species of massive size from the family Cirolanidae.

  • Link to source page

    Critter of the Week: The tropical slate pencil urchin

    The NIWA Invertebrate Collection mainly consists of samples collected in the deepsea, but occasionally we find shallow exceptions like this stunning sea urchin.

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    Beautiful Browns

    News article
    16 September 2016
    Do you know where in New Zealand to find Neptune’s necklace or rimurapa? Or how to tell apart Carpophyllum from Cystophora?
    Algae

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    Beautiful Browns

    An interactive guide to the large brown seaweeds of New Zealand.
    Coasts
    Oceans