1. Why are median phosphorus concentrations improving in New Zealand streams and rivers?. Issue 2 (3rd April 2019) Authors: McDowell, Richard W.; Hedley, Mike J.; Pletnyakov, Peter; Rissmann, Clint; Catto, Warwick; Patrick, Wes Journal: Journal of the Royal Society of New Zealand Issue: Volume 49:Issue 2(2019) Page Start: 143 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗