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Impacts of wood processing
Impacts of timber processing activities on water quality and mahinga kai. -
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. -
Chemical contamination and aquaculture
What are the potential sources of chemical contamination from aquaculture activities? -
Kōura
There are two species of kōura or freshwater crayfish in Aotearoa. -
Mitigation and best practice options
Here are some simple steps to minimise the effects of dairying on water quality and mahinga kai. -
Dissolved oxygen
Dissolved oxygen (DO) is a relative measure of the amount of oxygen (O2) dissolved in water. -
Water abstraction and agriculture
How do agricultural activities potentially influence water flows? -
Ecotoxicology services
ServiceNIWA offers a range of standard toxicity tests for both freshwater and marine environments. -
Taonga Species Series: Kākahi
Feature story06 June 2017What does science tell us about New Zealand freshwater mussels? -
Mitigation and best practice options
Some simple steps to minimise the effects of aquaculture activities on water quality and mahinga kai. -
Wastewater Treatment
Wastewater treatment is the separation and extraction of solid waste from liquid waste, and the removal of nutrients and pathogens.