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Kanae
Grey mullet have a worldwide distribution and Aotearoa is at the southern limit of their range. -
Causes of sedimentation
What are the potential sources of sediments from land use activities? -
Kōaro
Kōaro are excellent climbers and like clear, swiftly flowing, forested streams. -
Kōura
There are two species of kōura or freshwater crayfish in Aotearoa. -
Sediment and agriculture
How may agricultural activities increase sediments in waterways? -
Piharau
Piharau/kanakana are an important mahinga kai species and a prized delicacy for many Māori. -
Sediment and forestry
How may forestry activities increase sediments in waterways? -
Proud of your plants? 1 June 2017
News article01 June 2017NIWA is doing a nationwide study to discover what makes the best riparian projects. Help us give you the knowledge to make the best riparian management decisions possible by taking our 5 minute survey. -
NIWA Technical Background report for MfE “Clean Water” Swimmability Proposals for Rivers
News article11 May 2017NIWA provides technical background information on "Clean Water" swimmability proposals. -
Ngā Kete o te Wānanga: Mātauranga, Science and Freshwater Management
Research ProjectNew 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. -
Applying the right tools to restore kōura to lakes and streams
The tools available for restoring kōura to lakes and streams depend on what is causing kōura to decline.