Robin Lydia McLachlan¹, Andrea S Ogston¹, Mead A Allison^2,3 and Diana Di Leonardo⁴, (1)University of Washington, School of Oceanography, Seattle, WA, United States, (2)The Water Institute of the Gulf, Baton Rouge, LA, United States, (3)Tulane University, Earth and Environmental Sciences, New Orleans, LA, United States, (4)The Water Institute of the Gulf, Baton Rouge, United States