Atmospheric analysis

NIWA has been using advanced scientific instruments to measure atmospheric trace gases and isotopes for over 50 years.

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    NIWA Non Commercial Licence

    NIWA Non Commercial Licence
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    Terms of Use

    NIWA Terms of Use
  • Kingfish in the recirculating aquaculture system at the Northland Marine Research Centre.

    Kingfish – the new species for New Zealand aquaculture

    Media release
    Commercial-scale production of kingfish - a high-value, white-fleshed finfish to complement salmon - is now a reality in New Zealand. 
  • Supercomputing for the nation - NIWA’s new $20 million supercomputer

    Media release
    A $20 million investment in NIWA’s world-leading climate, marine and freshwater science and advanced technologies.
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    Fish Passage Assessment Tool

    Software Tool/Resource
    An easy-to-use system for recording instream structures and assessing their likely impact on fish movements and river connectivity.
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    New Zealand Fish Passage Guidelines

    Recommended standards for the design and restoration of instream infrastructure to provide for fish passage
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    Understanding fish passage - FAQs

    See our frequently asked questions about Fish Passage
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    Fish Passage Barrier Assessment Reporting Tool (BART)

    Software Tool/Resource
    An interactive webtool to support barrier prioritisation and fish passage environmental reporting. 
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    Guidelines for monitoring fish passage success

    A manual detailing evidence-based methods suitable for evaluating the effectiveness of fish passage solutions.
  • Polar vortex July 2024

    The rare event driving the Southern Hemisphere’s weather

    Media release
    An unusual disturbance high above Antarctica is causing polar air to encroach on different parts of the Southern Hemisphere, including New Zealand.
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    The Bio-Acoustic Fish Fence

    Research Project
    Investigating the effectiveness of an acoustic bubble-screen in minimising the movement of pest fish
  • Unprecedented ocean change may impact key NZ fisheries

    News article
    NIWA scientists have seen substantial changes in the ocean to the east of New Zealand