Seasonal climate summaries from summer 2001 to the present.

Once in freshwater, glass eels develop into darker pigmented juvenile eels known as elvers.

Dairy farms operate to maximise milk production

A carbon neutral activity is one that has a carbon footprint of zero.

How can mining activities influence sediments in waterways?

Climate data and common terms explaining the causes and effects of climate change.

This is the standard precision instrument NIWA uses throughout New Zealand in the National Climate Network, and elsewhere, for rainfall measurement.

A participatory project empowering communities with self-help tools to improve water, sanitation and hygiene.

Learn how to use the New Zealand Freshwater Fish Database (NZFFD)

This manual prescribes a set of sampling and analysis protocols applicable to most of the common stream habitats in New Zealand.

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

The largest member of the Galaxiidae family.