Acknowledgments
This work was supported by institutional funds of the Alfred -Wegener- Institut Helmholtz-Zentrum für Polar-und Meeresforschung, Germany and funds of the Helmholtz Association for financing the Helmholtz-University Young Investigators Group PLANKTOSENS (Grant VH-NG-500). Our special thanks go to the captains and crews of the Research Vessel Polarstern , as well as to the members of the mooring team who have mastered the comprehensive anchoring programme, which was the basis of this study. Furthermore, we are very grateful to Stefan Neuhaus, for bioinformatical support and owe special thanks to Theresa Hargesheimer, Kerstin. Oetjen, and Swantje Rogge for the excellent technical support in the laboratory. DFLOnda received support from the German Federal Ministry of Education and Research through the Green Talents International Award Fellowship Program for his research stay in AWI. The authors would also like to thank Erika Grace Gernato for her help in finalizing the formatting of the manuscript.