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Fish Passage
Understanding and supporting the migration of fish through New Zealand's freshwater habitats. -
How many replicates do I need?
The standard six‑replicate eDNA design was set to give a robust, nationally consistent picture of stream fish communities. -
Using eDNA in your stream
By detecting these traces of DNA, eDNA can provide a picture of the fish community present in a waterway without the need to capture fish. -
Fish in pastoral streams
The fact sheets on this page introduce the species you're most likely to encounter in pastoral catchments across Aotearoa. -
Freshwater fish & eDNA
Research ProjectNew Zealand has one of the most distinctive freshwater fish faunas in the world. -
Fish screening: principles of good design & operation
Effective fish screen facilities balance design principles to protect fish while maintaining reliable water supply. -
Fish screening: timing matters
Effective fish screen facilities adapt to ever-changing river conditions and fish populations. -
Fish screening: fish-led design
Effective fish screen facilities work with fish behaviour, not against it -
Fish screening
Research ProjectGuidance for enhanced fish protection around irrigation water intakes designed to safely direct fish past the intake. -
Fish Passage Assessment Tool
Software Tool/ResourceAn easy-to-use system for recording instream structures and assessing their likely impact on fish movements and river connectivity. -
New Zealand Fish Passage Guidelines
Recommended standards for the design and restoration of instream infrastructure to provide for fish passage
