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Water take
Water take (also known as water abstraction) has a range of valuable public and private uses. -
Piharau
Piharau/kanakana are an important mahinga kai species and a prized delicacy for many Māori. -
Urbanisation activities
Urbanisation has changed the face of many waterways that flow through urban areas -
Sediment and agriculture
How may agricultural activities increase sediments in waterways? -
Aquaculture Activities
Shellfish gathering and farming take place in marine and freshwater environments. -
River Environment Classification
The River Environment Classification (REC) is a database of catchment spatial attributes, summarised for every segment in New Zealand's network of rivers. -
Identification and e-guides
Downloadable and printable guides on identification of common freshwater invertebrates found in New Zealand waterways and lakes. -
Analysis of water quality trends
NIWA has developed a powerful software tool for the analysis of water quality data. -
Chemical contamination and wastewater
What are the potential sources of chemical contaminants in wastewaters? -
Ecotoxicology services
ServiceNIWA offers a range of standard toxicity tests for both freshwater and marine environments.
