Juan Muglia, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CESIMAR, Puerto Madryn, Argentina, Andreas Schmittner, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, Stefan Mulitza, MARUM−Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany, Bremen, Germany, Patrick A Rafter, University of South Florida, College of Marine Science, St Petersburg, United States, Janne Repschlaeger, University of Kiel, Kiel, Germany, Christopher J Somes, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany and Sophie-Berenice Wilmes, Bangor University, Menai Bridge, United Kingdom