Lakes

Latest news

Visitors to NIWA’s stand at this year’s Fieldays are invited to go diving into the Rotorua lakes—without having to get wet.
NIWA researchers are out on Lake Whakatipu for the next week mapping the lake floor for the first time.
NIWA discusses, in depth, this year's most asked question—what is happening to our fresh waterways?
NIWA researchers have spent part of the last month keeping a close eye on the bottom of Lake Tekapo to find out what it looks like and what is going on below the lake bed.

Our work

This research project aimed to understand the causes behind differences in mercury in trout and other organisms in the Bay of Plenty/Te Arawa lakes—in particular what features of each lake explain why mercury in trout is higher in some lakes than in other lakes.

NIWA recently hosted visitors from Northland to view cultivated plants from Lake Ōmāpere that are now ‘extinct in the wild’, and discussed plans for their reintroduction to the lake in the future. 

The ability to properly manage our freshwater resources requires a solid understanding of the flora and fauna which live in and interact with them.
This project aims to increase our knowledge of aquatic ecosystems and their restoration, and apply this to degraded streams, rivers, lakes and estuaries.

Latest videos

Diving deep to check up on our lakes

NIWA scientists jump overboard to check out the health the Rotorua Te Arawa lakes. The work is part of NIWA's national LakeSPI programme—an ecological health check for lakes throughout New Zealand. 
Underwater research to protect and maintain New Zealand's freshwater resources.

New research on the effectiveness of the herbicide endothall shows favourable results in the battle to rid lakes and rivers of New Zealand’s most invasive aquatic weeds, including hydrilla, hornwort and lagarosiphon (an oxygen weed).

Welcome to NIWA's second Alumni Update – an e-newsletter for past NIWA employees.

Our latest water resources information from around New Zealand, including the outlook for the summer.

When deployed underwater, this self-contained instrument records and analyses water waves. It can trigger other instruments and send alarms via a communications link.

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All staff working on this subject

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Freshwater Fisheries Ecologist
Principal Scientist - Aquatic Pollution
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Environmental Monitoring Technician
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Freshwater Fish Ecologist
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Environmental Scientist
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