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Tuna - life cycle and leptocephalii
Freshwater eels have an unusual life cycle which sees them travelling between the ocean, estuaries and freshwaters. -
Kākahi
The kākahi or freshwater mussel was a valuable mahinga kai resource for many Māori. -
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. -
What is Kaitiaki Tools?
Kaitiaki Tools is a guide to teach people (especially hapū and iwi groups) who manage the resource consent process. -
Causes of sedimentation
What are the potential sources of sediments from land use activities? -
Tuna - habitat
Tuna are found in all sorts of habitats (places), including coastal estuaries, lakes, wetlands, rivers, mountain streams and even alpine tarns. -
Forestry activities
Forest plantations in Aotearoa can be found on flat, gently rolling, or very steep terrain. -
Freshwater fish species list
A list all of New Zealand's freshwater fish species. -
Stream periphyton monitoring manual
This manual prescribes a set of sampling and analysis protocols applicable to most of the common stream habitats in New Zealand. -
Mahinga kai and migration
A high proportion of New Zealand’s native freshwater fish fauna need to migrate to and from the sea. -
Stepping into the river
Feature story06 June 2017NIWA discusses, in depth, this year's most asked question—what is happening to our fresh waterways?
