Oceans

The world’s oceans are acidifying as a result of the carbon dioxide (CO2) generated by humanity.

Charts of coastal bathymetry, sediment, and other information are available for purchase.

An unavoidable delay in a research ship’s voyage to Antarctica resulted in some surprising and important findings about the behaviour of emperor penguins.

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.

Casal2 is an advanced software package developed by NIWA for modelling the population dynamics of marine species.

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

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

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

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.

Pollen from New Zealand pine forests has been shown to travel more than 1500km through wind and ocean currents, and sink thousands of metres into the ocean to reach some of the world’s deepest ecosystems.