Kyle Halstead^1,2, Ronald P Kiene^1,2, David J Kieber³ and Jeffrey W Krause^1,2, (1)University of South Alabama, Department of Marine Sciences, Mobile, AL, United States, (2)Dauphin Island Sea Lab, Dauphin Island, AL, United States, (3)SUNY College of Environmental Science and Forestry, Department of Chemistry, Syracuse, NY, United States