Biogeosciences
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Articles | Volume 15, issue 12
Articles | Volume 15, issue 12
https://doi.org/10.5194/bg-15-3909-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/bg-15-3909-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 12
Research article
 | 
29 Jun 2018
Research article |  | 29 Jun 2018

Microbial community structure in the western tropical South Pacific

Nicholas Bock, France Van Wambeke, Moïra Dion, and Solange Duhamel

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Short summary
We report the distribution of major nano- and pico-plankton groups in the western tropical South Pacific. We found microbial community structure to be typical of highly stratified regions of the open ocean, with significant contributions to total biomass by picophytoeukaryotes, and N2 fixation playing a central role in regulating ecosystem processes. Our results also suggest a reduction in the importance of predation in regulating bacteria populations under nutrient-limited conditions.
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