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Estuaries
Education ResourceAn estuary is a partially enclosed body of water formed where freshwater from the land meets and mixes with saltwater from the ocean. -
Horticultural activities
Land is tilled, sowed, and harvested for horticultural crops to grow. -
Stormwater - an introduction
Stormwater is a major concern for New Zealand because of its potential effects on the ecological health of our urban streams and coastal waters, as well as on the economic, social and cultural value of these environments. -
Stepping into the river
Feature story06 June 2017NIWA discusses, in depth, this year's most asked question—what is happening to our fresh waterways? -
Tuna
Tuna or freshwater eels are a very significant, widely-valued, heavily-exploited, culturally iconic mahinga kai resource. -
LakeSPI: Keeping tabs on lake health
Software Tool/ResourceThe condition of many NZ lakes is under threat from land-use changes and the invasion of alien aquatic plants. -
Common hydrological terms
Education ResourceDescriptions of the common terms that explain the processes that occur in hydrology. -
Climate change, global warming and greenhouse gases
Climate data and common terms explaining the causes and effects of climate change. -
Water Quality Monitoring Capabilities
Research ProjectNIWA provides national capabilities in Water Quality Monitoring. -
Freshwater databases online
More information about our online freshwater databases.
