Rivers

Latest news

Flood flows on the Buller River this month were the largest of any river in Aotearoa New Zealand in almost 100 years, NIWA measurements show.
A combination of artificial intelligence and scientific ingenuity looks set to be the next step forward in protecting Aotearoa New Zealand’s lakes and rivers from invasive aquatic weeds.
Preliminary analysis by NIWA climate scientists has shown that the recent Canterbury rainfall was so extreme in some inland places that it could be expected to happen only once every 200 years.
The prodigious rainmaker that hit Canterbury earlier this month saw NIWA field teams out in the elements collecting flood data from bridges, cableways and jetboat gaugings.

Our work

The eFlows Explorer webtool is designed to aid broad-scale river flow management planning across New Zealand
Currently there are gaps in understanding of user decision making processes and public needs and requirements for river forecasting in New Zealand. This project aims to bridge NIWA river forecasting aspirations and capabilities with both the public and decision makers’ requirements.
The New Zealand Fish Passage Guidelines sets out recommended practice for the design of instream infrastructure to provide for fish passage.
New Zealand’s freshwater and estuarine resources provide significant cultural, economic, social, and environmental benefits. Competition for the use of these resources is intensifying, and many rivers, lakes and estuaries are now degraded.

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.
A day out measuring at Molesworth
A day out measuring at Molesworth
This project aims to increase our knowledge of aquatic ecosystems and their restoration, and apply this to degraded streams, rivers, lakes and estuaries.
Report: Trends analysis for selected indicators of Waikato River health and wellbeing 2010-2019
Flood flows on the Buller River this month were the largest of any river in Aotearoa New Zealand in almost 100 years, NIWA measurements show.
A combination of artificial intelligence and scientific ingenuity looks set to be the next step forward in protecting Aotearoa New Zealand’s lakes and rivers from invasive aquatic weeds.
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...

Preliminary analysis by NIWA climate scientists has shown that the recent Canterbury rainfall was so extreme in some inland places that it could be expected to happen only once every 200 years.
The prodigious rainmaker that hit Canterbury earlier this month saw NIWA field teams out in the elements collecting flood data from bridges, cableways and jetboat gaugings.
The eFlows Explorer webtool is designed to aid broad-scale river flow management planning across New Zealand
A NIWA scientist is asking for the help of skiers, mountaineers and alpine professionals to collect snow for a new research project.
Environmental monitoring technician Patrick Butler has spent hours travelling between the upper and lower reaches of Canterbury’s Waimakariri and Hurunui Rivers. His mission – river water quality sampling.
What does science tell us about New Zealand flounder?
How much is too much? Susan Pepperell looks at some of the tough decisions looming around access to freshwater and how science is helping with solutions.
New Zealand’s native fish are doing their best to climb up ramps in a NIWA laboratory so scientists can learn how to better help them navigate our tricky waterways.
A new study has identified seven freshwater species native to Aotearoa-New Zealand that will likely be highly or very highly vulnerable to climate change.
Maniapoto Māori Trust Board and NIWA worked collaboratively during 2018-19 to support Ngāti Maniapoto whānau to reconnect with and participate in the assessment of their freshwater according to their values.
To prepare for changes in climate, our freshwater and oceans decision-makers need information on species vulnerability to climate change.

Lagarosiphon be gone

An underwater invader recently brought key agencies and organisations including Land Information New Zealand, NIWA, Otago Regional Council, Boffa Miskell, Department of Conservation, Ministry for Primary Industries, Fish and Game and Lake Guardians, together in Wanaka.
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?

 

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All staff working on this subject

Hydro-ecological Modeller
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Freshwater Hydro-Ecologist
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Riparian and Wetland Scientist
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River Geomorphologist
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Land and Water Scientist
Regional Manager - Christchurch
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Surface Water - Groundwater Modeller
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Coastal and Estuarine Physical Processes Scientist
Principal Scientist - Aquatic Pollution
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Hydrology Scientist
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Environmental Monitoring Technician
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Coastal Technician
Freshwater Fish Ecologist
Environmental Monitoring Technician
Hydrodynamics Scientist
Resource Management Scientist
Regional Manager - Auckland
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Environmental Scientist
Algal Ecologist
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