Freshwater

Stormwater poses risks to NZ’s urban streams & coastal waters, affecting ecological health & the cultural, social, & economic value of these environments.

This collaborative NZaid project worked with coastal Fijian villagers at Votua on the Coral Coast of Viti Levu to develop pragmatic water supply and waste treatment solutions to protect public health and reduce contamination of coastal waters.

When soils erode, sediments are washed into waterways.

Wastewater treatment is the separation and extraction of solid waste from liquid waste, and the removal of nutrients and pathogens.

The condition of many NZ lakes is under threat from land-use changes and the invasion of alien aquatic plants.

Dairy farms operate to maximise milk production

More information about our online freshwater databases.

Tau kōura is a traditional Māori fishing method commonly used to harvest kōura or freshwater crayfish in areas where they are abundant.

Banded kōkopu juveniles are very good climbers and will try to escape from buckets by clinging to and wriggling up the sides.

Has a receding lower jaw and black spots behind the head.

Rural, urban, and suburban wastewater treatment methods.

How can mining activities influence sediments in waterways?