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.

Once eels become migrants (also known as tuna heke or tuna whakaheke) they stop feeding, and progressively develop the external features that clearly distinguish them from 'feeders'.

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

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

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.

How do nutrients from wastewater treatment enter waterways?

Plots of UV levels throughout the day at different locations.

If you list all the historic rainfall totals for a particular month and for a specific location, rank these from lowest to highest, then divide the list into ten equal parts, you have identified the ten rainfall deciles for that month and for that location.

Scott Base, Antarctica Antarctica is the coldest, windiest and driest continent.