Thomas S. Bianchi is a Professor in the Department of Geological Sciences at the University of Florida, Gainesville, where he holds the Jon and Beverly Thompson Endowed Chair of Geological Sciences. His general areas of expertise are organic geochemistry, biogeochemical dynamics of aquatic food chains, carbon cycling in estuarine and coastal ecosystems, and biochemical markers of colloidal and particulate organic carbon. He has published more than 130 articles in refereed journals and four books, including Biogeochemistry of Gulf of Mexico Estuaries (1999, lead co-editor with Pennock and Twilley), Biogeochemistry of Estuaries (2007), Hypoxia in the Northern Gulf of Mexico (2010, co-author with Dale et al.) and Chemical Biomarkers in Aquatic Ecosystems (2011, lead co-author with Canuel). In 2012, he was elected as a Fellow of the American Association for the Advancement of Science.