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Q&A: Another way to measure river health
Feature story20 June 2017There’s another way of measuring the health of rivers – the health of invertebrate populations that need them, says John Quinn, NIWA Chief Scientist, Freshwater
and Estuaries. -
Erica Williams - Where the water is clean
Feature story20 June 2017Erica Williams' story starts with the website of Moerewa School, where pupil Tyra-Lee explains her connection to a very special place in her small Far North town. -
Raising the bar for swimmable rivers
Feature story20 June 2017The government has released the ‘Clean Water’ package of proposed reforms, aimed at making more of our rivers swimmable. But how is ‘swimmable’ to be measured, and do these measures stack up? -
Dairy turns the corner
Feature story11 June 2017NIWA's Freshwater and Estuaries Chief Scientist Dr John Quinn believes the dairy industry has been responsive in the tools it has adopted to reduce its impact on waterways. -
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?