Northland Regional Council staff observed extensive mats of benthic cyanobacteria (potentially toxic algae) upstream of this site during routine monitoring. These mats will likely become dislodged, particularly during rain, and move further down the catchment, where they may become deposited along river/stream banks. We advise to always check for black or dark brown algae on the riverbed before letting children or animals near the water. If cyanobacteria is present, avoid contact and swimming, and keep dogs out of the water.
For more information about cyanobacteria visit: https://www.nrc.govt.nz/environment/water/algal-blooms-and-natural-phenomena/cyanobacteria-blue-green-algae/