Skip to main content

The doors to our Whitianga and Paeroa offices will be closed for the summer break from 4pm on Friday, 20 December, while our Taupō and Hamilton offices will close for the summer break at 1pm on Tuesday, 24 December. All offices will reopen on Monday, 6 January 2025. To report air or water pollution, unsafe water activities in or on a river, lake or harbour, or make a general enquiry or information request during this time, call us 24/7 on 0800 800 401.

Close alert

Nutrients and phytoplankton (chlorophyll a) in the Waikato River

TR 2018/46

Report: TR 2018/46

Author: Healthy Rivers Technical Leaders Group

About this report

This report was commissioned by the Technical Leaders Group for the Healthy Rivers Wai Ora Project Report No. HR/TLG/2015-2016/3.6

This paper summarises lines of evidence relating to nutrient limitation of phytoplankton biomass within the Waikato River main stem, including spatial and temporal patterns and trends in Chlorophyll a and nutrients and the results of 3 sets of bioassays.

Read or download the report

Nutrients and phytoplankton (chlorophyll a) in the Waikato River [PDF, 2.5 MB]