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Riparian vegetation and agriculture
How may agricultural activities impact riparian vegetation around a waterway? -
What are ppm and ppb?
PPM and PPB are units used in atmospheric chemistry to describe the concentration of gases. -
New Zealand's Marine Realm
News article06 June 2017NIWA has transformed 1.5 million square kilometres of data into the most accurate and detailed map yet of the land underneath the sea around New Zealand. -
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. -
Fisheries stock assessments
To get the most benefit from a fish stock in the long term, we need to maximise our yield without damaging the fish population we rely on. -
Toitoi
One of the most common species of freshwater fish in Aotearoa is the common bully or toitoi. -
Impacts of water dams
What are the impacts of water dams on water quality and mahinga kai? -
Multibeam swath system
Hull-mounted on the RV Tangaroa, the EM302 multibeam echosounder maps the seafloor using a fan of 288 acoustic beams, producing up to 864 soundings per ping in dual swath mode, providing 100% coverage of the seabed. -
Chemical contamination and mining
What are the potential sources of chemical contamination from mining activities?