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Mining activities
A range of different mining techniques have been developed to obtain these valuable resources -
Inanga
Inanga are the predominant species in the modern whitebait fishery. -
Tuna - life cycle and leptocephalii
Freshwater eels have an unusual life cycle which sees them travelling between the ocean, estuaries and freshwaters. -
Hydro
Hydro-electricity is a renewable energy source that relies on the inflow of water into storage lakes upstream of a dam. -
The impact of El Niño and La Niña on New Zealand's climate
El Niño accounts for less than 25 percent of the year-to year variance in seasonal rainfall and temperature at most locations in New Zealand. -
Mitigation and best practice options
Some simple steps to minimise the effects of mining activities on water quality and mahinga kai. -
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. -
Mangroves: to clear or not to clear?
Media release19 May 2017NIWA scientists have written a guide for managing mangroves, prompted by a desire for people to learn more about mangrove ecosystems, and what happens when they are removed. -
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. -
Paradise for eels? Getting to know the secrets of NZ's new icon
Feature story09 May 2017As New Zealand's "Mr Eel", Niwa's Dr Don Jellyman has heard every tall tale. And some of them may be true.
