Wednesday 9th March
Algal bloom at Stoney Creek a tributary of the Manawatu River. Credit: Mike Joy Massey University
Excess nutrients causing growths of algal mats on the Oroua River Credit: Jo Bailey Massey University
Taken from Dr Mike Joy 's Squandered Ebook Link: http://waterqualitynz.info/
NZ Rivers, before National Policy Statement for freshwater objectives 2014
After NPS objectives
The images in this gallery are used with permission and are subject to copyright conditions.