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Kōaro
Kōaro are excellent climbers and like clear, swiftly flowing, forested streams. -
Shortjaw kōkopu
Has a receding lower jaw and black spots behind the head. -
Smelt
Smelt have a distinctly forked tail and a strong cucumber smell. -
Restoration and enhancement of piharau / kanakana / lamprey
Research ProjectNIWA is leading a new six-year research project that seeks to increase our understanding of piharau/kanakana/lamprey, using Mātauranga Māori, social science and biophysical science approaches. -
Tuna - habitat
Tuna are found in all sorts of habitats (places), including coastal estuaries, lakes, wetlands, rivers, mountain streams and even alpine tarns. -
Tuna - spawning grounds
All species of freshwater tuna spawn at sea, although the spawning grounds of only four species are known with certainty worldwide. -
Freshwater databases online
More information about our online freshwater databases. -
Freshwater fish species list
A list all of New Zealand's freshwater fish species. -
Guidelines for sampling freshwater fisheries
We have prepared a breakdown of the different guidelines that are available for sampling freshwater fisheries. The overview provides links to key documents that explain what should be considered when designing fish monitoring studies and how to implement the various sampling techniques. -
New Zealand fish passage guidelines
Research ProjectThe New Zealand Fish Passage Guidelines sets out recommended practice for the design of instream infrastructure to provide for fish passage. -
Biosecurity tools
Software Tool/ResourceOur biosecurity management tools include: assessment models, field surveys, management advice and the testing of control methods.