Articles | Volume 15, issue 8
Research article
19 Apr 2018
Research article |  | 19 Apr 2018

Particulate barium tracing of significant mesopelagic carbon remineralisation in the North Atlantic

Nolwenn Lemaitre, Hélène Planquette, Frédéric Planchon, Géraldine Sarthou, Stéphanie Jacquet, Maribel I. García-Ibáñez, Arthur Gourain, Marie Cheize, Laurence Monin, Luc André, Priya Laha, Herman Terryn, and Frank Dehairs


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (13 Feb 2018) by Gilles Reverdin
AR by Nolwenn Lemaitre on behalf of the Authors (13 Feb 2018)  Author's response    Manuscript
ED: Publish as is (16 Mar 2018) by Gilles Reverdin
Short summary
We present the particulate biogenic barium distributions in the North Atlantic for the first time with the objective of estimating mesopelagic carbon remineralisation fluxes. The remineralisation fluxes balanced or slightly exceeded the upper-ocean carbon export fluxes. This is a key result as the North Atlantic is generally assumed to be efficient in transferring carbon to the deep ocean, but during our study, the North Atlantic was characterized by a near-zero carbon sequestration efficiency.
Final-revised paper