-
Water diversion
Diverting water away from its natural channel for commercial or private use. -
Freshwater databases online
More information about our online freshwater databases. -
Tau kōura sample collection and processing protocol
Tau kōura is a traditional Māori fishing method commonly used to harvest kōura or freshwater crayfish in areas where they are abundant. -
Banded kōkopu
Banded kōkopu juveniles are very good climbers and will try to escape from buckets by clinging to and wriggling up the sides. -
Shortjaw kōkopu
Has a receding lower jaw and black spots behind the head. -
Wastewater treatment activities
Rural, urban, and suburban wastewater treatment methods. -
Mitigation and best practice options
Some simple steps to minimise the effects of wastewater on water quality and mahinga kai. -
Sediment and urbanisation
How does urbanisation increase sediments in waterways? -
Biological limitations
Identifying biological factors that may be limiting fish numbers requires sampling to ensure that key invertebrate prey species are not scarce and that pest fish, especially predators, are not abundant. -
Algae ID guides
A collection of ID guides to algae. Groups include major freshwater algal groups, diatoms and blue-green (cyanobacteria), red and green algae. -
SHMAK water quality – visual clarity
There are two methods to determine visual clarity in SHMAK; the clarity tube (or SHMAK tube) and the black disc method.
