Articles | Volume 12, issue 8
https://doi.org/10.5194/bg-12-2597-2015
https://doi.org/10.5194/bg-12-2597-2015
Research article
 | 
30 Apr 2015
Research article |  | 30 Apr 2015

Open ocean dead zones in the tropical North Atlantic Ocean

J. Karstensen, B. Fiedler, F. Schütte, P. Brandt, A. Körtzinger, G. Fischer, R. Zantopp, J. Hahn, M. Visbeck, and D. Wallace

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This study is the first report of the formation of dead zones in the open ocean. A combination of multiple ocean observing system elements (mooring, floats, satellites, ships) allowed us to reconstruct the generation of the dead zones and to connect the formation to enhanced respiration within mesoscale ocean eddies. The dead zones present specific threats to the ecosystem, such as the interruption of the diurnal migration of zooplankters.
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