Oil concentration, oil composition, biomarkers, and nutrients for the mesocosm LTMOSE, a Long Term Marine Oil Snow Experiment

Mesocosm experiments were performed with Gulf of Mexico seawater collected 8 km offshore south of Galveston, Texas and were amended with microbial concentrate. The three treatments in triplicate were analyzed for oil composition were 1) Control, 2) Water accommodated oil fraction (WAF), and 3) diluted chemically enhanced (Corexit) WAF (DCEWAF). The oil composition data presented here are estimated oil equivalence (EOE) using fluorescence, polycyclic aromatic hydrocarbon (PAH), total PAH and biomarkers. Additionally, the total and dissolved nutrients for these treatments are also included.