Freshwater and Estuaries news

Help us build a better niwa.co.nz for you by filling out our annual survey

News and media releases related to our freshwater and estuaries work.

Follow this news via RSS 

NIWA scientists leave for Brisbane this Friday 28 January.

A shy, slimy, ancient fish, that looks like an eel but isn't. It has a circular sucker for a mouth, and feeds by rasping a hole in its victim's fishy-flesh.

Lurking in the depths of freshwater waterways, all around New Zealand, longfin eels are the most common fish in our rivers. The native longfin eel, at up to 1.6 metres in length, is something to be in awe of, especially when there's a crowd of them – and they aren't the most attractive thing you've ever seen.

NIWA and partners have developed a new Envirolink toolkit for monitoring the ecological success of stream restoration.

NIWA and partners have developed a new Envirolink toolkit for monitoring the ecological success of stream restoration.

A NIWA report provides a national snapshot of the current status (2005-2009) and long term trends of water quality in New Zealand lakes.

NIWA’s annual end-of-summer survey of the snowline on key South Island glaciers shows, on average, a very slight net gain in the amount of snow at the top of those glaciers.

‘Whitebait’ tagged as part of a unique experiment have turned up. Earlier this year the giant kōkopu released into the Nukumea Stream in Orewa had disappeared, but when scientists returned in June the fish were back!

Scientists returned to the Nukumea Stream in Orewa in June, to investigate the trial release of giant kōkopu and found that they were back!

What is known about life in the ocean? Even though it’s the biggest habitat on the planet, most of the ocean remains unexplored biologically. So what do we know? And how does New Zealand’s biodiversity compare with the rest of the world?

Scientists returned to the Nukumea Stream in Orewa last week, to investigate the trial release of giant kōkopu. This is the first controlled trial in New Zealand to test whether the native fish, giant kōkopu, can be successfully stocked into a stream.

Last week NIWA scientists carried out electric fishing and night time spotlight surveys, in the stream; capturing and measuring the fish and recording the locations that they were found in.

New Zealand’s iconic whitebait species are disappearing from our waterways, but help could soon be at hand for the threatened giant kōkopu.

World’s largest wastewater algae to bio-crude oil demonstration puts CO2 to good use.

A world leading research project demonstrating wastewater conversion to bio-oil.

Some of the world’s most ancient and fascinating animals have been re-discovered in southern New Zealand. Prospects for their survival look good – provided groundwaters and wetlands are protected.

Environment Canterbury has released two reports by the National Institute of Water and Atmospheric Research (NIWA).
The first report models nutrient loading into Lake Benmore and its associated lakes, the second is a literature review of nitrate toxicity to freshwater species.

Lake Benmore water quality report

Full Report: Lake Benmore Water Quality: a modelling method to assist with assessments of nutrient loadings.

The first report will help Environment Canterbury better understand and manage water quality in the Waitaki lakes in response to land use changes.
“In the case of t

NIWA and IBM today announced a multi-million dollar partnership where NIWA will purchase one of the world’s most powerful supercomputers for use in environmental forecasting.

The National Institute of Water & Atmospheric Research’s (NIWA) scientific expertise is to be focused on improving the management of freshwater resources in Canterbury.

Growing community concern about the degradation of water environments boosted the number of aquatic restoration projects and subsequent scientific research, an overview of the research says.

The National Institute of Water & Atmospheric Research (NIWA) has reported to the Whakatane District Council (WDC) on the results of tests into accuracy of the district council’s sunshine recording equipment.

Twenty one years after New Zealand’s most devastating cyclone struck the country, the effects of Cyclone Bola are still with the East Coast of the North Island.

Pages

Subscribe to NIWA Science Centre News