Harp Lake, Ontario
Harp Lake is an oligotrophic, single basin lake in Ontario, Canada (45º23'N; 79º08'W). The lake covers over 710,000 m2 and has a depth of 37.5 m. Harp Lake does have dimitic stratification and is a temperate lake. Additionally, Harp Lake does not have anaerobic conditions in the water column because it is a relatively deep lake. The water in Harp Lake has a pH of 6.3 (slightly acidic). This pH is caused by the presence of acids and the lack of alkaline bases.[3] Slightly acidic lakes normally have a granite or siliceous bedrock and they are poorly buffered. Also, these lakes commonly have calcium-poor soils or thin soils. It is one of the "Dorset lakes" near Dorset, Ontario, a small community located on the boundary between the Algonquin Highlands Township in Haliburton County, Ontario and Lake of Bays Municipality in Muskoka District, Canada. Ecology Nutrient levels The forested watershed area around Harp Lake is around 4.7 km2 and comprises six streams and shoreline runoff. There has been evidence that the total discharge of these six streams has decreased by 24.9% from 1978-2006. Four different concentrations of cations (Ca, K, Mg and Na) were observed in Harp Lake from 1978-2006. There