Dog Island levels

Where and when do white sharks occur in New Zealand waters, and how can fisheries bycatch be reduced?

Various industries and land use activities have the potential to impact on water quality and mahinga kai unless properly managed.

Seasonal climate summaries from summer 2001 to the present.

The mass of carbon emissions can easily be calculated.

NIWA makes a range of trace gas data freely available on our FTP site.

Plants and trees along the water margins and banks are called riparian vegetation.

View a collection of maps showing the impact of past El Niño and La Niña events.

Hydro-electricity is a renewable energy source that relies on the inflow of water into storage lakes upstream of a dam.

These datasets are available in a range of formats.

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