This data set was acquired with a Sea-Bird Electronics SBE-9Plus CTD during R/V Laurence M. Gould expedition LMG1810 conducted in 2018 (Chief Scientist: Dr. Benjamin Van Mooy, Investigator: Dr. Benjamin Van Mooy). These data files are of Sea-Bird CTD format and include Conductivity, Pressure and Temperature data that were processed after acquisition. Data were acquired as part of the project(s): Production and Fate of Oxylipins in Waters of the Western Antarctic Penninsula: Linkages Between UV Radiation, Lipid Peroxidation, and Carbon Cycling. Funding was provided by NSF award(s): OPP15-43328.