Atmospheric analysis

Here are some simple steps to minimise the effects of dairying on water quality and mahinga kai.

Urbanisation has changed the face of many waterways that flow through urban areas

A glossary of common climate change and meteorological terms.

There are different types of instrument available for measuring water level.

River floods occur when water spills from a river channel onto land that is normally dry, and are one of New Zealand's costliest natural hazards.

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 provides national capabilities in Water Quality Monitoring.

Freshwater eels have an unusual life cycle which sees them travelling between the ocean, estuaries and freshwaters.

An overview of Science at NIWA

In this blog series, we feature a new critter from our expansive invertebrate collection including pictures of specimens in their unique habitat. The blogs also feature news, links and fun facts that showcase New Zealand’s fascinating marine fauna.

Last Updated: July 2025