Particulate biogenic barium tracer of mesopelagic carbon remineralization in the Mediterranean Sea (PEACETIME project)

Jacquet, Stéphanie H. M.; Tamburini, Christian; Garel, Marc; Dufour, Aurélie; Van Vambeke, France; Le Moigne, Frédéric A. C.; Bhairy, Nagib; Guasco, Sophie

doi:https://doi.org/10.5194/bg-18-5891-2021

Articles | Volume 18, issue 22

https://doi.org/10.5194/bg-18-5891-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Atmospheric deposition in the low-nutrient-low-chlorophyll...

https://doi.org/10.5194/bg-18-5891-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 22

Research article

|

16 Nov 2021

Research article |

| 16 Nov 2021

Particulate biogenic barium tracer of mesopelagic carbon remineralization in the Mediterranean Sea (PEACETIME project)

Stéphanie H. M. Jacquet, Christian Tamburini, Marc Garel, Aurélie Dufour, France Van Vambeke, Frédéric A. C. Le Moigne, Nagib Bhairy, and Sophie Guasco

Data sets

BIOGEOCHEMICAL dataset collected during the PEACETIME cruise, SEANOE Guieu et al., 2020 https://www.seanoe.org/data/00645/75747/

Short summary

We compared carbon remineralization rates (MRs) in the western and central Mediterranean Sea in late spring during the PEACETIME cruise, as assessed using the barium tracer. We reported higher and deeper (up to 1000 m depth) MRs in the western basin, potentially sustained by an additional particle export event driven by deep convection. The central basin is the site of a mosaic of blooming and non-blooming water masses and showed lower MRs that were restricted to the upper mesopelagic layer.