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.

This lesson will explore the use of Māori environmental indicators [tohu] to anticipate local weather and climate conditions.

Aotearoa’s main urban areas cover approximately 2% of total available land.

Explore our education and information section to find out about climate and climate change, weather, our atmosphere, estuaries and more.

Here is our complete range of products.

Trees are grown and converted into a range of useful timber and paper products.

Charts of coastal bathymetry, sediment, and other information are available for purchase.

NIWA expends considerable effort on determining the age of commercial fish species. But why age a fish? And how do we do it?

Last Updated: July 2025

Casal2 is an advanced software package developed by NIWA for modelling the population dynamics of marine species.

Impacts of mining on water quality and mahinga kai.

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