PowerPoint Presentation

Dissolved Oxygen

�August anoxic depths

�46% of surface area of lake over anoxic water

�Implications for nutrient loading

�Implications for fisheries


	-map of anoxic area of Threemile Pond

	-46%of surface area of lake is over anoxic water

	-levels below 1ppm can cause phosphorus release from sediments which in turn can cause algal blooms
	-and cause fish kills
	-- -low levels of do indicate poor water quality
	-these anoxic conditions could cause problems for the fisheries in TMP