NIWA is sponsoring Aquatic Science at the interface, a joint conference for the:
The conference is being held in Hamilton, for more information see the Aquatic science at the interface website
River temperatures April to June
Autumn river water temperatures were mostly in the range 8 to 16oC and tended to be slightly higher in the north and at lower altitude.
The Motu River, in the eastern part of North Island, is the first of NZ’s so-called ‘wild and scenic rivers’. However, its upper catchment seems likely to be the focus of dairy expansion. NIWA scientists have been looking at the likely impacts of this change in land use.
Heavy metals, released by wear on tyres and brake pads, are washed off roads and can contaminate rivers, streams and harbours. NIWA has recently completed a study to measure how much copper and zinc is discharged in road runoff, and how well different stormwater devices remove these contaminants from runoff.
NIWA scientists are part of a team hoping to answer questions about how climate change might affect disease rates in New Zealand, such as those caused by pathogens like Cryptosporidium and Campylobacter, two major causes of disease in New Zealand.
Water temperature and clarity information, April to June 2010.
Our last three-monthly predictions, and what actually happened.
Monthly and seasonal river flow information, and our outlook for the coming three months.
Walking the whole length of streams is slow and difficult, but by far the best way to learn about their environmental condition.
Genetic diversity is an important component of biodiversity. Recent NIWA research shows how contaminated stormwater can reduce the genetic diversity of one model freshwater species.