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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. -
Piharau
Piharau/kanakana are an important mahinga kai species and a prized delicacy for many Māori. -
Urbanisation activities
Urbanisation has changed the face of many waterways that flow through urban areas -
Sediment and agriculture
How may agricultural activities increase sediments in waterways? -
Aquaculture Activities
Shellfish gathering and farming take place in marine and freshwater environments. -
River Environment Classification
The River Environment Classification (REC) is a database of catchment spatial attributes, summarised for every segment in New Zealand's network of rivers. -
Identification and e-guides
Downloadable and printable guides on identification of common freshwater invertebrates found in New Zealand waterways and lakes. -
Suspended-sediment yield estimator
This national GIS ‘layer’ enables reconnaissance-scale estimation of suspended-sediment yields from New Zealand’s rivers and streams. It has been developed by NIWA in collaboration with Landcare Research.
