Unknown

Dataset Information

0

Mesopelagic microbial carbon production correlates with diversity across different marine particle fractions.


ABSTRACT: The vertical flux of marine snow particles significantly reduces atmospheric carbon dioxide concentration. In the mesopelagic zone, a large proportion of the organic carbon carried by sinking particles dissipates thereby escaping long term sequestration. Particle associated prokaryotes are largely responsible for such organic carbon loss. However, links between this important ecosystem flux and ecological processes such as community development of prokaryotes on different particle fractions (sinking vs. non-sinking) are yet virtually unknown. This prevents accurate predictions of mesopelagic organic carbon loss in response to changing ocean dynamics. Using combined measurements of prokaryotic heterotrophic production rates and species richness in the North Atlantic, we reveal that carbon loss rates and associated microbial richness are drastically different with particle fractions. Our results demonstrate a strong negative correlation between prokaryotic carbon losses and species richness. Such a trend may be related to prokaryotes detaching from fast-sinking particles constantly enriching non-sinking associated communities in the mesopelagic zone. Existing global scale data suggest this negative correlation is a widespread feature of mesopelagic microbes.

SUBMITTER: Baumas CMJ 

PROVIDER: S-EPMC8163737 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature

altmetric image

Publications

Mesopelagic microbial carbon production correlates with diversity across different marine particle fractions.

Baumas Chloé M J CMJ   Le Moigne Frédéric A C FAC   Garel Marc M   Bhairy Nagib N   Guasco Sophie S   Riou Virginie V   Armougom Fabrice F   Grossart Hans-Peter HP   Tamburini Christian C  

The ISME journal 20210115 6


The vertical flux of marine snow particles significantly reduces atmospheric carbon dioxide concentration. In the mesopelagic zone, a large proportion of the organic carbon carried by sinking particles dissipates thereby escaping long term sequestration. Particle associated prokaryotes are largely responsible for such organic carbon loss. However, links between this important ecosystem flux and ecological processes such as community development of prokaryotes on different particle fractions (sin  ...[more]

Similar Datasets

| S-EPMC8956285 | biostudies-literature
| S-EPMC5133735 | biostudies-literature
| PRJEB11366 | ENA
| S-EPMC9312018 | biostudies-literature
| S-EPMC3990693 | biostudies-literature
| S-EPMC10286711 | biostudies-literature
| S-EPMC93150 | biostudies-literature
2019-10-19 | GSE139113 | GEO
2021-02-15 | PXD012699 | Pride
| S-EPMC8845567 | biostudies-literature