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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. -
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. -
Native forests absorbing more carbon dioxide
Media release06 June 2017New Zealand’s forests and other land areas may be absorbing up to 60% more carbon dioxide than has been calculated, with much of this uptake likely occurring in native forests, NIWA scientists have discovered. -
Mitigation and best practice options
Some simple steps to minimise the effects of wastewater on water quality and mahinga kai. -
Common hydrological terms
Education ResourceDescriptions of the common terms that explain the processes that occur in hydrology. -
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.