Igor Fernandez-Urruzola, Universidad de Concepcion, Millennium Institute of Oceanography, Concepción, Chile, Osvaldo Ulloa, Universidad de Concepción, Concepción, Chile, Wolfgang Schneider, Millennium Institute of Oceanography (IMO) and Departamento de Oceanografía, Universidad de Concepción, Concepción, Chile, Ronnie N Glud, University of Southern Denmark, Department of Biology, Odense, Denmark, Xinxin Li, South University of Science and Technology, Department of Ocean Science and Engineering, Shenzhen, China and Ruben Escribano, Instituto Milenio de Oceanografía, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Chile