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| Titel |
Presence of Prochlorococcus in the aphotic waters of the western Pacific Ocean |
| VerfasserIn |
N. Jiao, T. Luo, R. Zhang, W. Yan, Y. Lin, Z. I. Johnson, J. Tian, D. Yuan, Q. Yang, Q. Zheng, J. Sun, D. Hu, P. Wang |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 11, no. 8 ; Nr. 11, no. 8 (2014-04-29), S.2391-2400 |
| Datensatznummer |
250117382
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| Publikation (Nr.) |
 copernicus.org/bg-11-2391-2014.pdf |
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| Zusammenfassung |
| Prochlorococcus, the
smallest but most abundant marine primary producer, plays an important role
in carbon cycling of the global ocean. As a phototroph,
Prochlorococcus is thought to be confined to the euphotic zone, with
commonly observed maximum depths of ~ 150–200 m, but here we show for the first time the
substantial presence of Prochlorococcus populations in the dark
ocean ("deep Prochlorococcus" hereafter). Intensive studies at the
Luzon Strait in the western Pacific Ocean show that the deep
Prochlorococcus populations are exported from the euphotic zone.
Multiple physical processes including internal solitary waves could be
responsible for the transportation. These findings reveal a novel mechanism
for picoplankton carbon export other than the known mechanisms such as
sinking of phytodetritus and aggregates or grazing-mediated transportation. |
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