Articles | Volume 13, issue 14
Biogeosciences, 13, 4099–4109, 2016
https://doi.org/10.5194/bg-13-4099-2016
Biogeosciences, 13, 4099–4109, 2016
https://doi.org/10.5194/bg-13-4099-2016

Research article 18 Jul 2016

Research article | 18 Jul 2016

Diatoms Si uptake capacity drives carbon export in coastal upwelling systems

Fatima Abrantes et al.

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Short summary
Diatoms are the dominant primary producers of the most productive and best fishing areas of the modern ocean, the coastal upwelling systems. This turns them into important contributors to the biological pump and climate change. To help untangle their response to warming climate, we compare the worldwide diatom sedimentary abundance (SDA) to environmental variables and find that the capacity of diatoms to take up silicic acid sets an upper limit on global export production in these ocean regions.
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