NIWA has a range of expertise related to ocean fish, including surveys and monitoring of fish populations, and aquaculture species research

  • Blue cod and kitten

    What do kittens and blue cod have in common?

    Media release
    Strange fish behaviour has been captured by NIWA scientists
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    NIWA Biodiversity Memoir 136 - The Marine Biota of Aotearoa New Zealand

    Aotearoa New Zealand’s marine biodiversity checklist has been updated, representing an increase of 3,630 known living species since the turn of the century.
  • NIWA solves seafloor mystery

    Media release
    NIWA scientists have discovered the origins of cryptic markings found in Aotearoa New Zealand’s deep sea.
  • Researchers to unveil Antarctic secrets

    Media release
    As New Zealanders search for the summer sun, 38 researchers and crew will board RV Tangaroa tomorrow for a six-week science voyage deep into the waters of Antarctica.
  • What’s in a fish’s ear?

    Feature story
    The tiny ear bone of a fish holds a wealth of information. Gather enough and you get a snapshot of what’s happening beneath the waves. Stuart Mackay explains.
  • Chasing deepsea shadows

    Feature story
    Mia Blyth catches up with a marine biologist hunting for ocean ghosts.
  • Mapping the oceans through citizen science

    The Seabed 2030 South and West Pacific Ocean Data Center is one of four global Regional Centres, each being responsible for data gathering and mapping in their territory.
  • Research finds microplastics in fish muscle tissue

    Media release
    Some of the first research into how microplastics are affecting New Zealand fish species has revealed that microplastic fragments can find their way through the gut lining and into muscle tissue.
  • NIWA heads to Antarctica for critical climate, ocean research

    Media release
    NIWA’s flagship research vessel Tangaroa leaves soon on a six-week voyage to Antarctica, making it one of the few full scientific expeditions to the continent since the global outbreak of COVID-19.
  • NIWA crew face record time at sea

    Media release
    Coronavirus border restrictions mean six NIWA staff face four straight months at sea in a bid to keep an international ocean research project afloat.
  • Science of the high seas

    Feature story
    Ever wondered what fish is served in a Filet-o-Fish at MacDonald’s? It’s hoki. Fish fingers at the supermarket? Chances are, they’ll be hoki too.
  • Gone fishin'

    Feature story
    If you want a healthy fishing industry, you need to know how healthy your fish stocks are. Sam Fraser-Baxter talks to a scientist who went to sea to find out.