Published May 22, 2015
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Environmental characteristics of Agulhas rings affect interocean plankton transport
Authors/Creators
- Villar, Emily1
- Farrant, Gregory K.2
- Follows, Michael3
- Garczarek, Laurence4
- Speich, Sabrina5
- Audic, Stéphane2
- Bittner, Lucie6
- Blanke, Bruno7
- Brum, Jennifer R.8
- Brunet, Christophe9
- Casotti, Raffaella9
- Chase, Alison10
- Dolan, John R.11
- d'Ortenzio, Fabrizio11
- Gattuso, Jean-Pierre11
- Grima, Nicolas12
- Guidi, Lionel11
- Hill, Christopher N.13
- Jahn, Oliver13
- Jamet, Jean-Luis14
- LeGoff, Hervé15
- Lepoivre, Cyrille1
- Malviya, Shruti16
- Pelletier, Eric17
- Romagnan, Jean-Baptiste11
- Roux, Simon8
- Santini, Sébastien1
- Scalco, Eleonora9
- Schwenck, Sarah M.8
- Tanaka, Atsuko16
- Testor, Pierre15
- Vannier, Thomas17
- Vincent, Flora16
- Zingone, Adriana18
- Dimier, Céline6
- Picheral, Marc11
- Searson, Sarah11
- Kandels- Lewis, Stefanie19
- Acinas, Silvia G.20
- Bork, Peer21
- Boss, Emmanuel10
- de Vargas, Colomban2
- Gorsky, Gabriel11
- Ogata, Hiroyuki22
- Pesant, Stéphane23
- Sullivan, Matthew B.8
- Sunagawa, Shinichi24
- Winckler, Patrick17
- Karsenti, Eric25
- Bowler, Chris16
- Not, Fabrice2
- Hingamp, Pascal1
- Iudicone, Daniele9
- 1. Aix Marseille Université, CNRS, IGS UMR 7256, 13288 Marseille, France
- 2. CNRS, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France and Sorbonne Universités, Université Pierre et Marie Curie UPMC, Université Paris 06, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France
- 3. Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA.
- 4. CNRS, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France and Sorbonne Universités, Université Pierre et Marie Curie UPMC, Université Paris 06, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France.
- 5. Laboratoire de Physique des Océans (LPO) UMR 6523 CNRS-Ifremer-IRD-UBO, Plouzané, France and Department of Geosciences, Laboratoire de Météorologie Dynamique (LMD) UMR 8539, Ecole Normale Supérieure, 24 Rue Lhomond, 75231 Paris Cedex 05, France
- 6. CNRS, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France and Sorbonne Universités, Université Pierre et Marie Curie UPMC, Université Paris 06, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France and Ecole Normale Supérieure, Institut de Biologie de l’ENS (IBENS), and Inserm U1024, and CNRS UMR 8197, F-75005 Paris, France
- 7. Laboratoire de Physique des Océans (LPO) UMR 6523 CNRS-Ifremer-IRD-UBO, Plouzané, France
- 8. Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, USA
- 9. Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy
- 10. School of Marine Sciences, University of Maine, Orono, ME, USA
- 11. Sorbonne Universités, UPMC Université Paris 06, Observatoire Océanologique, F-06230 Villefranche-sur-Mer, France and INSU-CNRS, UMR 7093, LOV, Observatoire Océanologique, F-06230 Villefranche-sur-Mer, France
- 12. Laboratoire de Physique des Océans (LPO) UMR 6523 CNRS-Ifremer-IRD-UBO, Plouzané, Franc
- 13. Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
- 14. Université de Toulon, Laboratoire PROTEE-EBMA E.A. 3819, BP 20132, 83957 La Garde Cedex, France
- 15. CNRS, UMR 7159, Laboratoire d’Océanographie et du Climat LOCEAN, 4 Place Jussieu, 75005 Paris, France
- 16. Ecole Normale Supérieure, Institut de Biologie de l’ENS (IBENS), and Inserm U1024, and CNRS UMR 8197, F-75005 Paris, France
- 17. Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Institut de Génomique, Genoscope, 2 Rue Gaston Crémieux, 91057 Evry, France and CNRS, UMR 8030, CP5706, Evry, France and Université d’Evry, UMR 8030, CP5706, Evry, France
- 18. Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Itay
- 19. Structural and Computational Biology, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany and Directors’ Research, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany
- 20. Department of Marine Biology and Oceanography, Institute of Marine Sciences (ICM), CSIC, Passeig Marítim de la Barceloneta, 37-49, Barcelona E08003, Spain
- 21. Structural and Computational Biology, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany and Max-Delbrück-Centre for Molecular Medicine, 13092 Berlin, Germany
- 22. Aix Marseille Université, CNRS, IGS UMR 7256, 13288 Marseille, Franc
- 23. PANGAEA, Data Publisher for Earth and Environmental Science, University of Bremen, Bremen, Germany and MARUM, Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany
- 24. Structural and Computational Biology, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany
- 25. Ecole Normale Supérieure, Institut de Biologie de l’ENS (IBENS), and Inserm U1024, and CNRS UMR 8197, F-75005 Paris, France and Directors’ Research, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany
Description
Agulhas rings provide the principal route for ocean waters to circulate from the Indo-Pacific to the Atlantic basin. Their influence on global ocean circulation is well known, but their role in plankton transport is largely unexplored. We show that, although the coarse taxonomic structure of plankton communities is continuous across the Agulhas choke point, South Atlantic plankton diversity is altered compared with Indian Ocean source populations. Modeling and in situ sampling of a young Agulhas ring indicate that strong vertical mixing drives complex nitrogen cycling, shaping community metabolism and biogeochemical signatures as the ring and associated plankton transit westward. The peculiar local environment inside Agulhas rings may provide a selective mechanism contributing to the limited dispersal of Indian Ocean plankton populations into the Atlantic.
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