Aucklanders are being advised to avoid contact with slimy algae that has appeared on several local beaches this summer. The algae, identified as cyanobacteria Okeania spp., is typically black or dark green and has been observed on beaches near Pine Harbour Marina in Beachlands and other locations around the region.According to Auckland Council, similar algae blooms have occurred over the past two summers, with large amounts washing ashore on Waiheke Island and Kawakawa Bay. General Manager of Engineering, Assets, and Technical Advisory, Paul Klinac, reassured the public that while the algae is a natural phenomenon, it should be avoided.“During summer, it’s common to see all types of algae blooms occurring,” Klinac said. “We are continuing to monitor Okeania spp. and are ready to act, if required. In the meantime, if you see the slimy algae around the region, please avoid contact with it as it could lead to skin, eye, and respiratory irritations. Keep an eye on your dogs, as well, and ensure they avoid the algae.”Safety Guidelines for Affected BeachesThe beaches remain open to the public, but Auckland Council has issued the following advice:Avoid touching the algae or wading in affected areas.If you feel unwell after contact, consult a doctor or call Healthline on 0800 611 116.Keep dogs and other pets away from the algae and any decomposing material.Do not gather or consume shellfish from affected beaches.Do not collect the algae for personal use, such as gardening.Complex Causes of Algae BloomsCyanobacteria blooms like Okeania spp. thrive under specific environmental conditions, including calm weather, warm sea temperatures, abundant light, and sufficient nutrients. Scientists are still working to understand the factors behind these recurring blooms.Research by the Cawthron Institute has found that the algae’s toxins, known as lyngbyatoxins, can accumulate in marine snails, rock oysters, and cockles, posing potential risks to human health. Further studies are underway to predict and mitigate future blooms.For now, Aucklanders are encouraged to remain cautious and stay informed by monitoring council updates.Have a News story to share?Contact [email protected]