Plankton networks driving carbon export in the oligotrophic ocean
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Lionel Guidi
- Function : Author
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Samuel Chaffron
- Function : Author
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- IdHAL : samuel-chaffron
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- IdRef : 224068989
Lucie Bittner
- Function : Author
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- IdHAL : luciebittner
- ORCID : 0000-0001-8291-7063
- IdRef : 124602843
Damien Eveillard
- Function : Author
- PersonId : 95
- IdHAL : damien-eveillard
- ORCID : 0000-0002-8162-7360
- IdRef : 080211542
Abdelhalim Larhlimi
- Function : Author
- PersonId : 756004
- ORCID : 0000-0002-1709-2648
Stéphane Audic
- Function : Author
- PersonId : 18947
- IdHAL : stephane-audic
- ORCID : 0000-0001-6193-4374
- IdRef : 196940494
L. Berline
- Function : Author
- PersonId : 19839
- IdHAL : leo-berline
- ORCID : 0000-0002-5831-7399
- IdRef : 110463927
Marc Picheral
- Function : Author
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- ORCID : 0000-0001-8172-5473
Julie Poulain
- Function : Author
- PersonId : 756903
- ORCID : 0000-0002-8744-3116
- IdRef : 061407232
Lars Stemmann
- Function : Author
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- ORCID : 0000-0001-8935-4531
- IdRef : 157238024
Fabrice Not
- Function : Author
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- IdHAL : fabrice-not
- ORCID : 0000-0002-9342-195X
- IdRef : 089285824
Pascal Hingamp
- Function : Author
- PersonId : 8575
- IdHAL : pascal-hingamp
- ORCID : 0000-0002-7463-2444
- IdRef : 174369948
Lee Karp-Boss
- Function : Author
- PersonId : 776373
- ORCID : 0000-0003-2851-1921
Emmanuel Boss
- Function : Author
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- ORCID : 0000-0002-8334-9595
- IdRef : 195135229
Hiroyuki Ogata
- Function : Author
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- ORCID : 0000-0001-6594-377X
Patrick Wincker
- Function : Author
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- ORCID : 0000-0001-7562-3454
Daniele Iudicone
- Function : Author
- PersonId : 757541
- ORCID : 0000-0002-7473-394X
- IdRef : 139806903
Chris Bowler
- Function : Author
- PersonId : 758335
- ORCID : 0000-0003-3835-6187
- IdRef : 06874904X
Gabriel Gorsky
- Function : Author
- PersonId : 775404
- ORCID : 0000-0002-1099-8711
Abstract
The biological carbon pump is the process by which CO2 is transformed to organic carbon via photosynthesis, exported through sinking particles, and finally sequestered in the deep ocean. While the intensity of the pump correlates with plankton community composition, the underlying ecosystem structure driving the process remains largely uncharacterized. Here we use environmental and metagenomic data gathered during the Tara Oceans expedition to improve our understanding of carbon export in the oligotrophic ocean. We show that specific plankton communities, from the surface and deep chlorophyll maximum, correlate with carbon export at 150 m and highlight unexpected taxa such as Radiolaria and alveolate parasites, as well as Synechococcus and their phages, as lineages most strongly associated with carbon export in the subtropical, nutrient-depleted, oligotrophic ocean. Additionally, we show that the relative abundance of a few bacterial and viral genes can predict a significant fraction of the variability in carbon export in these regions.
Origin : Files produced by the author(s)
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