Oceans

The coldest seawater on earth could help scientists understand why Antarctic sea ice is growing in a warming world

We are currently steaming out towards our survey area, the Louisville Seamount Chain, which is about 1500 km from Wellington.

A basket star was the first reported animal trawled up from the deep sea back in the early 1800s so they have a spot in the history books of deep ocean exploration.

Ocean acidification is the name given to the lowering of pH of the oceans as a result of increasing carbon dioxide (CO2) in the atmosphere.

New Zealand faces a variety of hazards associated with undersea geological activity.

Technical information about our datasets and methodology along with related resources.

Where and when do white sharks occur in New Zealand waters, and how can fisheries bycatch be reduced?

The waters around New Zealand have some of the highest waves in the world, due to Southern Ocean swell and storms in the Tasman Sea and Pacific Ocean.

One of the major consequences of climate change is rising global sea levels.

An interactive guide to the intertidal sponges of New Zealand.

NIWA puts a lot of things in the ocean—instruments tied to moorings, floats that dive up and down measuring what’s going on in the water, and video cameras that monitor fish.