Javier Arístegui Ruiz¹, Bieito Fernandez Castro², Nauzet Hernández³, Isabell Klawonn⁴, Clara Maria Flintrop⁵, Markel Gomez-Letona⁶, María F. Montero³, Jan Taucher⁷, Rainer Kiko⁷, Morten H. Iversen⁸ and Xosé Antón Álvarez Salgado⁹, (1)Instituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria, Telde, Spain, (2)University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom, (3)Instituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain, (4)Department of Biological Oceanography, Leibniz Institute for Baltic Research, Warnemünde (IOW), Rostock, Germany, (5)University of Jerusalem, Jerusalem, Israel, (6)Organic Geochemistry Lab, Instituto de Investigacións Mariñas, CSIC, Vigo, Spain, (7)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (8)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Polar Biological Oceanography, Bremerhaven, Germany, (9)Organic Geochemistry Lab, CSIC Institute of Marine Research, Vigo, Spain