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

Marine invertebrates

NIWA has taxonomic expertise across a range of marine invertebrate phyla and produces research and resources to aid in the identification and conservation of these important groups.

  • Discovery of over a dozen new sponge species

    Media release
    In the latest NIWA Biodiversity Memoir, researchers examined and registered over 250 sponge specimens in the family Latrunculiidae, discovering 14 new species and 1 new fossil species.
  • Beloved Barnacles

    An interactive guide to the barnacles of New Zealand.
  • Going easy on the scallops

    Feature story
    From scallop beds to trawl nets, a little bit of data science can make a big difference. Melissa Bray explains.
  • Survey provides snapshot of harbour’s health

    News article
    Greater Wellington Regional Council regularly assess sediment quality and seafloor community health in the subtidal areas of Te Awarua-o-Porirua (Porirua Harbour) and Te Whanganui-a-Tara (Wellington Harbour).
  • Voyage update - 24 April

    We have sampled 11 stations today, with different pieces of equipment, starting with rock dredges on a ridge close to Hunga Ha’apai. The samples taken returned a trove of rock specimens that got the geologist onboard excited.
  • Researchers produce stunning images

    Media release
    A break in the clouds in a remote Fiordland valley and a chance encounter with a jellyfish under the Antarctic ice provide just some of the highlights from this year’s NIWA Staff Photography competition.
  • Fabulous Fiordland showcased in new e-Guide

    Media release
    With cascading waterfalls and native bush tumbling down mountainous terrain, Fiordland is one of the most eye-catching parts of the country. But peer beneath the waves and you'll see that Fiordland's marine invertebrate and seaweed communities are every bit as remarkable and awe-inspiring.
  • Fabulous Fiordland

    An interactive guide to the marine biota of the Fiordland (Te Moana o Atawhenua) Marine Area.
  • Powering diversity in the Ross Sea

    Studying the mesopelagic in the Ross sea
  • New biodiversity memoir on the primnoid corals of New Zealand

    Feature story
    A group of gorgonian octocorals that provide shelter for fish and invertebrates in the deep sea is the subject of NIWA’s latest Biodiversity Memoir.
  • Queen of the critters

    Feature story
    Sadie Mills has come a long way from scaring the inhabitants of Scottish rock pools. Sarah Fraser explains.
  • Message in a bottle: Sarah Seabrook

    It is interesting to watch all of the pieces of our science story come together with each day’s water sampling and our long term experiments.