Articles | Volume 18, issue 22
Biogeosciences, 18, 5891–5902, 2021
https://doi.org/10.5194/bg-18-5891-2021

Special issue: Atmospheric deposition in the low-nutrient-low-chlorophyll...

Biogeosciences, 18, 5891–5902, 2021
https://doi.org/10.5194/bg-18-5891-2021

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 et al.

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Latest update: 21 Jan 2022
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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.
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