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Stepping into the river
Feature story06 June 2017NIWA discusses, in depth, this year's most asked question—what is happening to our fresh waterways? -
Infectious substances
Waterways can easily become contaminated by pathogens when effluent is discharged nearby. -
Nature knows best?
Feature story06 June 2017Returning water to our waterways after we’ve used it in our homes, on farms and in industry is a complex and challenging process. -
Mahinga kai - what species interests you?
In Kaitiaki Tools the term mahinga kai generally refers to indigenous freshwater species that have traditionally been used as food, tools, or other resources. -
Sediment
When soils erode, sediments are washed into waterways. -
SHMAK water quality – visual clarity
There are two methods to determine visual clarity in SHMAK; the clarity tube (or SHMAK tube) and the black disc method. -
Banded kōkopu
Banded kōkopu juveniles are very good climbers and will try to escape from buckets by clinging to and wriggling up the sides. -
Temperature changes
Temperature affects the number and type of animals and plants that live in a waterway. -
Climate Change Vulnerability Assessment (CCVA)
ServiceTo prepare for changes in climate, our freshwater and oceans decision-makers need information on species vulnerability to climate change. -
Giant kōkopu
The largest member of the Galaxiidae family. -
Water temperature and hydro
How do hydro-electricity activities potentially influence waterway temperatures?