Maria Vernet¹, Wendy Anne Kozlowski², B. Jack Pan¹, Allison Cusick³, Martina Mascioni⁴ and Irene A. Garibotti⁵, (1)Scripps Institution of Oceanography, Integrative Oceanography Division, La Jolla, CA, United States, (2)Cornell University, Ithaca, NY, United States, (3)Scripps Institution of Oceanography, La Jolla, CA, United States, (4)Universidad Nacional de La Plata, Argentina, (5)Instituto De Investigaciones En Biodiversidad Y Medioambiente, Bariloche, Argentina