Rivers

Latest news

Scientists are seeing more toxic algae in our lakes and rivers compared to previous years, says NIWA. 
Deep beneath Waitomo’s rolling hills lies a maze of caves and underground rivers. Here, NIWA researchers braved the dark waters to measure the current and hunt for fishy invaders under the twinkle of the cave’s magical glowworms.
River flows in New Zealand have changed dramatically over the past 50 to 90 years as the climate has varied, a new study has found.
Nearly half of New Zealand’s river network is partially or fully inaccessible to migratory fish, a new study shows.

Latest videos

Hydrology in the Waipori Gorge, Dunedin

For over 100 years Trustpower's Waipori power scheme has supplied Dunedin with hydroelectric power. Our field hydrology team visit the site every three months to take essential measurements of the river flow. We headed out with NIWA environmental technician Elliot Bowie to learn more...

The world's most mysterious fish

A video about The world's most mysterious fish. NIWA researchers are working with iwi to try to unlock the secrets of New Zealand tuna—freshwater eels. Every year tiny, glass eels wash in on the tide at river mouths along our coast. But where do they come from and how do they get there?

 

Overview of SHMAK

How healthy is your stream? SHMAK—the New Zealand Stream Health Monitoring and Assessment Kit—has been designed to help you find out. It also allows stream health to be tracked over time, so you can recognise if stream health is getting better, worse or staying the same.

A day out measuring at Molesworth

A day out measuring at Molesworth

This month we bring you a full-length edition of FWU, with national river flow and water quality maps and information, and updates on three research projects.

Pages

All staff working on this subject

Hydro-ecological Modeller
Freshwater Fish Ecologist
placeholder image
Riparian and Wetland Scientist
placeholder image
River Geomorphologist
placeholder image
Land and Water Scientist
Regional Manager - Christchurch
placeholder image
Remote Sensing Scientist
Surface Water - Groundwater Modeller
Coastal and Estuarine Physical Processes Scientist
Principal Scientist - Natural Hazards and Hydrodynamics
Principal Scientist - Aquatic Pollution
Hydrology Scientist
Hydrodynamics Scientist
Regional Manager - Auckland
Algal Ecologist
Subscribe to RSS - Rivers