Sometimes wind can feel like a bit of a mystery because we can feel it, but not see it.

Learn how to use the New Zealand Freshwater Fish Database (NZFFD)

This manual prescribes a set of sampling and analysis protocols applicable to most of the common stream habitats in New Zealand.

A high proportion of New Zealand’s native freshwater fish fauna need to migrate to and from the sea.

Station height is in metres above mean sea level. Years of data are the number of complete years of data for the 1981 – 2010 period.

Mountainous areas are subject to heavy snowfalls, high winds, and low temperatures. Semi-permanent snow and ice fields exist at about 1000-1100 metres during winter.

NIWA has developed a real time UV display in consultation with the Cancer Society and Sunsmart.

There are several ways to tell the three New Zealand eel species apart.

An overview of Science at NIWA

Find out more about emergent aquatic plants.

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.