Watch out for toxic algae

This time of year sees the return of toxic algae in rivers and streams. Summer has started hotter and drier, meaning lower river levels, which creates the right environment for the algae to grow.

Council’s Senior Water Quality Scientist Steffi Henkel said algae has been spotted in the Omaka River and it was important to keep an eye out for it, particularly if you have children or dogs.

“Algae toxins can be dangerous, requiring immediate veterinary care for dogs that ingest it, with symptoms appearing within 30 minutes. People may experience vomiting, diarrhea and skin irritation.”

Due to the extensive size of Marlborough's waterways, it's not practical for Council to place warning signs everywhere.

“People need to stay vigilant, check for algae at their favourite river or stream, and if they spot any, find another place to go,” says Steffi.

Find out more about toxic algae and how to identify it on the toxic algae webpage