Residents around Fountain Lake are raising concerns about the increasing number of fish turning up lethargic or dead, an issue becoming more visible during the scorching summer months. According to a recent announcement from the town, experts believe that sudden oxygen depletion, primarily influenced by natural causes, is the likely culprit behind this worrying trend.
The phenomenon, not entirely unexpected in urban lakes, is attributed to multiple factors including diminished oxygen production on overcast days and the mixing of oxygen-poor bottom waters with the surface during high winds, and these sudden variations in oxygen levels can transpire within a single day, leading to rapid fish distress. Additionally, chemicals like carbon dioxide found in the deeper waters can pose an extra threat when stirred up by the wind, and nighttime already sees a natural decrease in oxygen levels when photosynthesis halts, though the drop is typically not dramatic.
Furthermore, events known as Algae Kill, wherein large populations of algae bloom and then die off quickly, have been identified as another potential cause for the rapid depletion of oxygen that can be detrimental to fish. The Town, proactive in its approach, has enlisted the expertise of a professional lake management company to monitor various parameters including oxygen levels, algae concentration, and water PH, with the goal of swiftly addressing and reversing the adverse conditions as confirmed by the town's declaration.
To mitigate the problems faced by the fish, staff at Fountain Lake have been operating the fountain throughout the daytime to enhance the lake's oxygen supply. The results from regular water testing are pending and, once available, will inform further actions necessary to improve the overall water quality for the lake's aquatic residents.
