Karen Casciotti

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Fellow Term: 6/1/08-5/31/11

Karen Casciotti was an associate scientist in Marine Chemistry and Geochemistry. Her research focuses on nitrogen cycle biogeochemistry, including studies of how nitrate, nitrite, and nitrous oxide (N2O) are produced and consumed in ocean waters. She uses a combination of stable isotope measurements and microbial community analysis to determine the sources and cycling of nitrogen in the coastal ocean. The COI fellowship allowed her to explore emerging areas of research, such as the mechanisms of N2O production in the coastal ocean, and the relationship of N2O production to anthropogenic nitrogen loading.