Associate Professor of Biology Mike McCormick gave an invited talk at the New England regional meeting of the American Society for Microbiology at the University of Connecticut on Oct. 25. McCormick discussed the work that he and his students are conducting at Green Lake in Fayetteville, N.Y.
Green Lake exhibits meromixis, a rare condition in which two bodies of water lie above each other but never mix. As a result, over the last 10,000 years the bottom waters of Green Lake have lost all oxygen and have become rich in nutrients and hydrogen sulfide. In contrast, the surface waters are oxygenated and nutrient poor. Lying between the top and bottom waters is the chemocline, a region in which the chemical conditions change rapidly.
McCormick presented results of a high-resolution survey of the geochemistry and microbial community composition throughout the water column and sediments of the lake.