Oceans

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

  • Critter of the Week: the brightly coloured and aptly named clown nudibranch, Ceratosoma amoenum.

    This week’s critter, found from the northern part of New Zealand to southern Australia, is the brightly coloured and aptly named clown nudibranch, Ceratosoma amoenum.
  • (no image provided)

    Penguin census reveals drop in numbers

    News article
    The plight of the penguins of Penguin Bay has attracted the interest of scientists who are studying why there are fewer and fewer of them every year.
  • (no image provided)

    Finding the right whale in old places

    News article
    Scientists on a rugged mid-winter trip to the remote sub-Antarctic islands have confirmed a large contingent of endangered southern right whales are spending the colder months near Campbell Island.
  • (no image provided)

    Critter of the Week, spiny sea slater Brucerolis brandtae

    This week we thought we would go back to the beginning and revisit our very first Critter, which many of you may not have seen. Let’s take another look at the spiny sea slater Brucerolis brandtae.
  • (no image provided)

    This week's Critter is the sand-dollar associate Oxydromus sp., a hesionid polychaete.

    Hesionids are lively compact small worms, often richly coloured and with a good set of eyes (2 pairs, with lenses).
  • Extraordinary Echinoderms

    An interactive guide to the sea stars, brittle stars, feather stars, sea eggs, and sea cucumbers (echinoderms) of New Zealand.
  • (no image provided)

    Decade of great white shark research nears end

    News article
    A joint 10-year NIWA and Department of Conservation project to find out more about the great white sharks that inhabit New Zealand waters is coming to an end.
  • (no image provided)

    Argyrometra mortenseni

    This week's Critter of the Week (number 130) is the feather star Argyrometra mortenseni.
  • (no image provided)

    Critter of the Week: The brittle star Ophioleuce brevispinum

    This week we bring you a species that puts the ‘brittle’ into brittle star: the beautiful and fragile Ophioleuce brevispinum.
  • (no image provided)

    Critter of the Week: The Mediterranean fanworm Sabella spallanzanii

    The Mediterranean fanworm Sabella spallanzanii is a spectacularly large worm with a characteristic circular whirl of filaments.
  • (no image provided)

    Critter of the Week: Zoroaster

    We hope this Week’s Critter of the Week will brighten your day, introducing the genus of sea stars called Zoroaster.
  • (no image provided)

    As far down as it goes - Critter of the Week - Scopelocheirus schellenbergi

    With the Kermadec Trench Expedition coming to a close , we thought we would stay on the theme of trenches for a little longer and present to you Scopelocheirus schellenbergi.