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Estimated bycatch
View data that show reported target catch and estimated bycatch. -
Analysis of water quality trends
NIWA has developed a powerful software tool for the analysis of water quality data. -
What ails our estuaries - problems and solutions
Estuaries are at the bottom of the freshwater drainage network and, effectively, are a part of it. This means that every time we act to protect and enhance streams and rivers we are also benefiting the estuary at the downstream end. -
How cold is the Antarctic?
Write a report, with guided questions, to answer the question: “How cold is the Antarctic?” -
Kōura
There are two species of kōura or freshwater crayfish in Aotearoa. -
Floods
Education ResourceRiver floods occur when water spills from a river channel onto land that is normally dry, and are one of New Zealand's costliest natural hazards. -
Fisheries stock assessments
To get the most benefit from a fish stock in the long term, we need to maximise our yield without damaging the fish population we rely on. -
Climate stations and instruments
We can supply a wide range of weather or climate monitoring instruments from single parameter sensors to fully equipped and installed climate stations. -
Q&A - Bloomin' algae!
Feature story06 June 2017A hot and steamy summer saw Kiwis heading down to rivers and lakes to cool off. But they weren’t the only ones enjoying the warmer weather – algae had a great time too. -
The impact of El Niño and La Niña on New Zealand's climate
El Niño accounts for less than 25 percent of the year-to year variance in seasonal rainfall and temperature at most locations in New Zealand.