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Dissolved oxygen (DO) is a relative measure of the amount of oxygen (O2) dissolved in water.

The 2012-2013 drought affected the entire North Island plus the west coast of the South Island.

We have prepared a breakdown of the different guidelines that are available for sampling freshwater fisheries. The overview provides links to key documents that explain what should be considered when designing fish monitoring studies and how to implement the various sampling techniques.

An interactive guide to the sponges of New Zealand.

NIWA provides ambient air quality monitoring services using low-cost ODIN (Outdoor Dust Information Node) sensors.

NIWA has recently created synthetic, multi-year, 10-minute wind datasets at 15 wind farm sites across New Zealand. These will be used by the Electricity Commission to model the impact of wind farms on the national grid.

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

Dry stock farming consists predominantly of pasture grazing beef cattle, sheep, and deer for meat, wool, and velvet production.

Check out UV index forecasts for locations in New Zealand (including ski fields), Australia, the Pacific and Antarctica.

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

Management of stream riparian areas - including vegetation and stock access - influences the health of streams and downstream water bodies.