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Climate Change Vulnerability Assessment (CCVA)
ServiceTo prepare for changes in climate, our freshwater and oceans decision-makers need information on species vulnerability to climate change. -
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. -
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. -
Toolkit development
A number of individuals, organisations and hapū have contributed to the development of Ngā Waihotanga Iho. -
Getting started
Traditionally, tangata whenua have collected information about estuaries to monitor resources, such as kaimoana, and to make decisions about conservation measures, such as rähui. Increasingly, tangata whenua are using scientific tools to help monitor their natural resources and Ngä Waihotanga Iho provides a science perspective for talking about environmental issues and concerns related to estuaries. -
Managing mangrove expansion
This manual aims to provide the guidance needed to manage mangrove expansion, while maintaining the ecological integrity of estuaries and harbours. -
Muddy sinks
Feature story22 February 2017New Zealand’s mangrove swamps and coastal marshes may be particularly adept at absorbing and storing the carbon we emit. -
Monitoring and maintenance of kōura
Once you have identified the problem, and applied the necessary tools for restoring kōura to your stream, the next phase of your project is to monitor the site to see whether restoration works. -
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. -
Why are kōura rare or absent in your waterway?
Habitat and biological factors factors affect why kōura rare or absent in your waterway. -
Are kōura present in your waterway?
First, determine if kōura should be present in your stream. -
Identifying the problem for kōura
Identifying the factors causing kōura numbers to decline will allow you to determine which restoration tools you need to employ.