Scientists exploring the Kermadec Trench believe they have retrieved the deepest ever sediment sample from the bottom of the ocean using a wire-deployed corer.

NIWA's seafood sector work comprises our fish, fisheries and aquaculture research and consultancy.

Plants and trees along the water margins and banks are called riparian vegetation.

Hydro-electricity is a renewable energy source that relies on the inflow of water into storage lakes upstream of a dam.

These datasets are available in a range of formats.

This identification guide covers the common crustose coralline algae found in central New Zealand.

Plots of UV levels throughout the day at different locations.

The climate of Otago is perhaps the most diverse of any region in New Zealand.

Scott Base, Antarctica Antarctica is the coldest, windiest and driest continent.

Longfin eels are the largest and longest-lived fish in New Zealand's freshwaters, and where they are present they are the top predator.

NIWA oceanographer Dr Cliff Law explains the impacts of ocean acidification on organisms that use carbonates to build their shells, and on bacteria.