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Freshwater mitigation systems
Effective systems to manage contaminant losses -
Stopping the gold clam: it's now or never
A NIWA-led programme to develop effective, and culturally-attuned strategies for managing the freshwater gold clam. -
Fish Passage
Understanding and supporting the migration of fish through New Zealand's freshwater habitats. -
River flow forecasting
Research ProjectNIWA is developing a national river flow forecasting tool for New Zealand that aims to support and strengthen our planning for and response to extreme rainfall events. -
Freshwater Ecological monitoring
We offer a range of ecological monitoring tools. -
Restoration of aquatic ecosystems
Research ProjectThis project aims to increase our knowledge of aquatic ecosystems and their restoration, and apply this to degraded streams, rivers, lakes and estuaries. -
Endothall
Endothall (Endothall dipotassium) is a herbicide (chemical) that has been registered for the control of freshwater submerged (underwater) weeds in New Zealand. -
Wetlands win proves power of partnership to improve water quality
Media release06 October 2025Constructed wetlands project receives NZ award for environmental sustainability. -
New study reveals colossal scale of riverbank erosion during Cyclone Gabrielle
Media release25 August 2025Over 220,000 m3 of sediment was eroded from just 9.1km of Ūawa/Hikuwai riverbanks in Gisborne (Tairāwhiti). -
How New Zealand's deep and large lakes reflect and are affected by climate change
Research ProjectA recently completed research programme undertaken by Earth Sciences New Zealand looked at the likely impact of climate change on deep lakes. -
Roto Whakamahu: Degraded lakes restoration using native plants
Research ProjectEarth Sciences New Zealand researchers are studying the optimal growing conditions of aquatic plants to help restore degraded lakes. -
Programme update June 2025
In this update we report on research activities over the last three months in the field, the lab and the development of a new resource.
