Tuna harvested from Lake Ōmāpere and Utakura River catchment have long comprised an important fishery for tangata whenua.

Technical information about our datasets and methodology along with related resources.

New Zealand has just experienced its warmest winter on record, according to official NIWA climate data.

Wastewater treatment is the separation and extraction of solid waste from liquid waste, and the removal of nutrients and pathogens.

NIWA scientists have made the rare discovery of a days-old ghost shark during a recent survey off the east coast of the South Island.

What are the potential sources of chemical contamination from aquaculture activities?

Defining drought and identifying its causes and impacts on humans.

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

An overview of Science at NIWA

Pauanui North station