The New Brunswick government is reminding the public of the potential health risks from cyanobacteria, also known as blue-green algae, as temperatures rise. Although not all cyanobacteria are harmful, some species can produce toxins that can pose risks to people, pets, livestock, fish and wildlife, a news release from the province said. “We want New Brunswickers to enjoy the outdoors and make the most of the province’s recreational waters, while also understanding the potential health risks associated with cyanobacteria,” said Dr. Yves Léger, chief medical officer of health. “By learning how to recognize cyanobacteria blooms and benthic mats, residents can take simple steps to protect themselves, their families and their pets.” Surface blooms of cyanobacteria are usually blue-green but may also be green, red or brown. “Cyanobacteria blooms can develop quickly and may not always be easy to predict,” said Léger. “Before entering any lake or river, take a moment to assess the water and shoreline. Avoid swimming or wading in areas where blooms or mats are visible.” Benthic mats that form at the bottom of lakes and rivers can resemble a dark green, brown or black vegetation. When washed ashore and dried, these mats may appear grey or brown and can attach to rocks, aquatic plants and other surfaces. Blue-green algae can be toxic and deadly to dogs if ingested. Owners should not allow dogs to eat shoreline vegetation or floating benthic mats. Exposure to cyanobacteria toxins can cause skin, eye and throat irritation. If swallowed contaminated water can lead to stomach and intestinal illness. Other safety warnings include: “Through research, water testing and strong partnerships, we are improving our understanding of cyanobacteria in New Brunswick, including where they occur, the types of toxins they may produce, and the environmental conditions that influence their growth,” said Environment and Climate Change Minister Gilles LePage. “This knowledge will help support informed decision-making and the protection of New Brunswick’s water resources.” For more New Brunswick news, visit our dedicated provincial page.
