Impacts of mining on water quality and mahinga kai.

Our southwest Pacific research focuses on recent and historic climate and weather activity, including our involvement in ACRE Pacific data rescue.

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

These datasets are available in a range of formats.

The sex of tuna is not determined genetically, as in some other organisms.

Currently, the most reliable method to estimate the age of tuna is by examination of their otoliths or "ear bones"

NIWA discusses, in depth, this year's most asked question—what is happening to our fresh waterways?

References, further reading, and links to useful websites.

When soils erode, sediments are washed into waterways.

The climate of this area is greatly dependent on its exposure to weather systems from the Tasman Sea and the lie of the Southern Alps to the east.