Freshwater quality

Here are some simple steps to minimise the effects of nutrient overloading on water quality and mahinga kai.

Simple steps to minimise the effects of infectious substances on water quality and mahinga kai.

Here are some simple steps to minimise the effects of sediment on water quality and mahinga kai.

Learn about the Resource Management Act, Resource Consents, and how to prepare a submission.

A regular newsletter that includes a seasonal review and outlook for New Zealand's water resources, and an update on some of NIWA's freshwater research.

Learn more about aquatic plants.

Aquatic plant overview, weed management options & freshwater plant ID guides.

Trophic preferences and range for submerged plant species in NZ lakes.

An ability to discover basic information about plants in waterways is the foundation to solving a spectrum of problems that face our freshwaters today.

The centre provides research, services and solutions spanning the spectrum of freshwater plant problems within New Zealand.