There are two species of kōura or freshwater crayfish in Aotearoa.

Waterways can easily become contaminated by pathogens when effluent is discharged nearby.

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

The Statement of Core Purpose spells out why the Government owns Crown Research Institutes and what it expects from them.

As much of this climate zone is sheltered by high country to the west, south and in some areas to the east, it is the sunniest region of New Zealand.

This is a sub-tropical climate zone, with warm humid summers and mild winters.

NIWA has transformed 1.5 million square kilometres of data into the most accurate and detailed map yet of the land underneath the sea around New Zealand.

Monthly climate summaries from December 2001 to the present.

In comparison to the vast span of geological time, the estuaries that we see today are very recent coastal features.

NIWA's educational resources and scientific data are tools for young people to learn about science.

How may agricultural activities impact riparian vegetation around a waterway?