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Chemical contamination and mining
What are the potential sources of chemical contamination from mining activities? -
Stepping into the river
Feature story06 June 2017NIWA discusses, in depth, this year's most asked question—what is happening to our fresh waterways? -
Stream Health Monitoring and Assessment Kit
ServiceHow healthy is your stream? SHMAK - the New Zealand Stream Health Monitoring and Assessment Kit - has been designed to help you find out. -
New Zealand fish passage guidelines
Research ProjectThe New Zealand Fish Passage Guidelines sets out recommended practice for the design of instream infrastructure to provide for fish passage. -
Nutrient overloading
Nutrients in waterways are essential for the growth of algae and aquatic plants but too much can destroy an ecosystem. -
Impacts of wood processing
Impacts of timber processing activities on water quality and mahinga kai. -
Tuna - glass eels
Glass eels (about 5.5 to 7.0 cm) arrive in fresh water during spring, especially during September and October, although they may be present from July to December. -
Electronic Weather Station - NIWA EWS
These gather top-quality data and are used throughout New Zealand in the National Climate Network.