Oceans

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

  • The instruments at work - In the volcano's wake

    Our team onboard RV Tangaroa are equipped with all the tech and tools they need to explore the undersea changes caused by the devastating volcanic eruption in Tonga earlier this year.
  • 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.
  • Mapping the Tongan eruption

    The January eruption of the Tongan volcano Hunga Tonga – Hunga Ha’apai triggered tsunamis as far away as the Caribbean. NIWA scientists are onboard RV Tangaroa surveying the ocean around the volcano, working to understand the largest eruption of its kind since 1981 so they can help increase our knowledge about similar volcanoes around the world.
  • Hazards in the Tasman Sea

    You’ll be blown away by what these women in science are up to onboard this RV Tangaroa voyage to the Tasman Sea.
  • 2022 - Tasman Sea tsunami

    Voyage
    You’ll be blown away by what these women in science are doing onboard RV Tangaroa in the Tasman sea!
  • NIWA-Nippon Seabed Mapping Project a “rare opportunity” to study effects of Tonga eruption

    Media release
    NIWA and The Nippon Foundation are undertaking a mission to discover the undersea impacts of the recent Tongan volcanic eruption.
  • Mean heat: Marine heatwaves to get longer and hotter by 2100

    Media release
    New research from the Deep South Challenge: Changing with our Climate and NIWA shows that New Zealand could experience very long and “very severe” marine heatwaves by the end of the century.
  • Microplastics: a deeper problem than we thought?

    There is increasing global concern about the presence of plastic pollution in our oceans.
  • Tropical seafloor secrets revealed

    Media release
    NIWA scientists and Toitū Te Whenua Land Information New Zealand (LINZ) have used satellite technology to chart the Cook Islands’ seafloor in never-before-seen detail. The work was done as part of Seabed 2030 - a collaborative project to produce a definitive map of the world ocean floor by 2030.
  • A robot sea craft helps count fish

    A six-metre-long autonomous vessel is equipped with artificial intelligence and a range of data gathering equipment, including a battery powered echosounder that can estimate the size of fish populations.
  • Cutting-edge AI sea craft helping scientists count fish

    Media release
    A robot sea craft is the latest tool NIWA scientists are using to help them count fish.
  • 2022 - Chatham Trawl Survey

    Voyage
    The NIWA research ship Tangaroa was chartered by the Ministry of Primary Industries to survey the hoki fishery on the Chatham Rise during January 2022.