“Sea Lettuce Algae Causes Discolored Waterways in P.E.I.”

Sea lettuce, a marine plant, is responsible for the discoloration and unpleasant odor in certain waterways in P.E.I., according to an expert in water biology. This algae thrives in high-nutrient environments and consumes oxygen during decomposition, leading to anoxic events. Several discolored waterways, including an estuary in the Oyster Bed area, have been reported this year due to low dissolved oxygen conditions. The province monitors oxygen levels in water bodies annually and plans to assess oxygen data trends in estuaries over the past decade. It is advised to avoid contact with water suspected of being anoxic as the smell can resemble rotten eggs. While some marine animals have adapted to low oxygen levels, many species struggle to survive in such conditions. Concerned individuals can contact the Land and Environment Department to report waterway issues in P.E.I.