Atmospheric analysis

Tuna, or freshwater eels, are the most widespread freshwater fish in New Zealand. This 'living' educational resource summarises a large amount of scientific and technical literature.

NIWA provides national capabilities in Water Quality Monitoring.

We recognise that there's so much more to life than just work!

Presented papers, arranged by workshop programme.

Up-to-date drought indicator maps are shown here.

The New Zealand Drought Monitor is a system for keeping track of drought conditions across New Zealand based on a standardised climate index.

Returning water to our waterways after we’ve used it in our homes, on farms and in industry is a complex and challenging process.

Last Updated: July 2025

New Zealand's first eel farm was established in 1971. Despite other farms opening in later years, no eel farms remained by the start of the 1980s.

Impacts of mining on water quality and mahinga kai.

NIWA has working relationships with hundreds of organisations in New Zealand and overseas.