What are the impacts of water dams on water quality and mahinga kai?

NIWA's seafood sector work comprises our fish, fisheries and aquaculture research and consultancy.

This identification guide covers the common crustose coralline algae found in central New Zealand.

A summary of up-coming tropical cyclone seasons, issued 6-monthly.

Water clarity or turbidity is the cloudiness or haziness in a fluid caused by individual small particles (suspended solids).

Impacts of hydro-electric activities on water quality and mahinga kai.

The climate of Otago is perhaps the most diverse of any region in New Zealand.

The atmosphere is comprised of layers based on temperature. These layers are the troposphere, stratosphere, mesosphere and thermosphere.

Tairua station

Longfin eels are the largest and longest-lived fish in New Zealand's freshwaters, and where they are present they are the top predator.

Atmospheric carbon dioxide (CO2) is measured continuously at Baring Head, providing the longest running record of this type in the Southern hemisphere.