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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 13, issue 6
Biogeosciences, 13, 1977–1989, 2016
https://doi.org/10.5194/bg-13-1977-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Hydrography, biogeochemistry, and biology of "dead-zone eddies"...

Biogeosciences, 13, 1977–1989, 2016
https://doi.org/10.5194/bg-13-1977-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 01 Apr 2016

Research article | 01 Apr 2016

Dead zone or oasis in the open ocean? Zooplankton distribution and migration in low-oxygen modewater eddies

Helena Hauss et al.
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Zooplankton distribution and migration in low-oxygen modewater eddies Hauss, Helena; Christiansen, Sarah; Schütte, Florian; Kiko, Rainer; Edvam Lima, M; Rodrigues, Edson; Karstensen, Johannes; Löscher, Carolin; Körtzinger, Arne; Fiedler, Bjoern http://doi.pangaea.de/10.1594/PANGAEA.858323

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In a low-oxygen eddy in the tropical Atlantic, total zooplankton biomass was increased. Larger plankton avoided the oxygen minimum zone (OMZ, < 20 µmol O2 kg−1). We identified four strategies by different plankton groups: (i) shallow OMZ avoidance and compression at surface, (ii) migration to shallow OMZ core during daytime, migration to surface at nighttime, (iii) residing in shallow OMZ day and night and (iv) migration through the shallow OMZ from oxygenated depths to surface and back.
In a low-oxygen eddy in the tropical Atlantic, total zooplankton biomass was increased. Larger...
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