Water quality maps and information, Autumn 2015
Autumn river water temperatures were mostly in the range 8-16C in the North Island and a little cooler in South Island (mostly below 12C and below 8C in some mountain-fed rivers).
Freshwater Update 66, July 2015
29 July 2015
Freshwater Update 66 brings you the latest information from our Freshwater & Estuaries centre, including water quality maps and information, as well as river flows.
Also, this month we released a new online tool to help with stream health monitoring: the Stream Health Monitoring Freshwater Invertebrate Identification Guide.
Read the media release - New hi-tech tool helps identify what's in your stream
River flows, April - June 2015
River flows over the last three months were well above normal in the west and south of both islands and the eastern Bay of Plenty.
Community engagement helps water allocation on the West Coast
NIWA and West Coast Regional Council (WCRC) are working together to help the South Island West Coast community participate in water allocation planning.
Lakebeds mapped in Northland
NIWA is working with Northland Regional Council (NRC) to produce lake bathymetry maps for 25 northern dune lakes.
Lake Koraha: a hidden gem in the Waikato
With a LakeSPI (Lake Submerged Plant Indicators) Index of 97% Lake Koraha is categorised as being in ‘excellent’ ecological condition.