Oceans

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

  • Eyeless worm a window into our diverse ocean

    Media release
    A worm that feeds on bacteria and has no eyes is one of the standout stars of almost 600 unfamiliar and potentially new ocean species identified at NIWA in the past year.
  • Ambitious NIWA-led Antarctic Ocean project gets go-ahead

    Media release
    Understanding how the Antarctic oceans work is vital to predicting the world’s future climate and the implications of climate change for humankind and the planet.
  • Our changing oceans

    Feature story
    The on-going rise of atmospheric carbon dioxide (CO2) that is fuelling climate change is also driving significant changes in the waters off our coasts.
  • Turritopsis rubra (Farquhar, 1895), Crimson jelly.

    Jiggling Jellyfish

    An interactive guide to the jellyfish of New Zealand.
  • Owha and her friends awarded citizenship

    Media release
    New Zealand’s newest citizens like the solitary life, have leopard-like markings, and can each weigh up to 600kg.
  • Scientists study how to predict marine heatwaves

    Media release
    Scientists have taken a step closer to predicting marine heatwaves with new NIWA-led research finding a link between their formation and the length of time sea temperatures are warmer than normal.^.
  • Scientists discover solar heat drives rapid melting of Ross Ice Shelf

    Media release
    Part of the world’s largest ice shelf is melting 10 times faster than the overall average and solar-heated waters beneath the ice shelf are to blame, NIWA research has found.
  • Adorable Anemones

    An interactive guide to the shallow water anemones of New Zealand. Version 2.0 (2022) is available for download now!
  • Sedimentation effects

    Research Project
    This programme looks at the impacts of sediment plumes created by disturbance to the seafloor and the discharge of processed waters.
  • Ocean acidification—what is it?

    The on-going rise of carbon dioxide (CO2) in the atmosphere is not only changing our climate—it is also changing our oceans. 
  • Scientists return from Antarctic voyage

    Media release
    After travelling almost 12,000km in the past six weeks, a group of scientists returns to Wellington at the weekend with new knowledge about life in the Ross Sea of Antarctica.
  • They were defrosting leopard seal poo...you won't believe what happened next!

    News article
    For more than a year a frozen slab of leopard seal poo sat in a NIWA freezer. The poo, known scientifically as scat and about the size of two bread rolls, is as good as gold for leopard seal researchers.