Oceans

Prior to 15 January, Hunga Tonga-Hunga Ha'apai was a little-known undersea South Pacific volcano with a long name. Within 24 hours, it  was a global phenomenon – the site of the largest atmospheric explosion in almost 150 years. Jessica Rowley looks at why a remote Tongan volcano took the world by storm.

The initial data on the survival rates of snapper that are caught and then released, suggests careful handling could help fishers save hundreds of thousands of fish per year.

Coastal waters around Aotearoa New Zealand became unusually warm last month, say NIWA.

A New Zealand scientist and a submersible pilot from China have become the first women to dive to Scholl Deep in the Kermadec Trench, 10 km below sea level.

A New Zealand-led team has completed the fullest investigation to date into January’s eruption of the underwater Tongan volcano.

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.

A group of international scientists are visiting some of New Zealand’s most significant coastal wetlands as part of a five-year research project to help the country adapt and prepare for sea-level rise.

What does science tell us about New Zealand cockles?

Specialised monitoring equipment has been installed in Bay of Plenty estuaries to understand whether our coastal wetlands can survive the threat of inevitable sea-level rise.

NIWA has world-class expertise in marine macroalgae and extensive research on various aspects of seaweed ecology, growth and taxonomy.

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