Articles | Volume 19, issue 2
Biogeosciences, 19, 415–435, 2022
https://doi.org/10.5194/bg-19-415-2022

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

Biogeosciences, 19, 415–435, 2022
https://doi.org/10.5194/bg-19-415-2022

Research article 25 Jan 2022

Research article | 25 Jan 2022

N2 fixation in the Mediterranean Sea related to the composition of the diazotrophic community and impact of dust under present and future environmental conditions

Céline Ridame et al.

Data sets

Biogeochemical dataset collected during the PEACETIME cruise. SEANOE. C. Guieu, K. Desboeufs, S. Albani, et al. https://doi.org/10.17882/75747

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Short summary
We show that in the Mediterranean Sea spatial variability in N2 fixation is related to the diazotrophic community composition reflecting different nutrient requirements among species. Nutrient supply by Saharan dust is of great importance to diazotrophs, as shown by the strong stimulation of N2 fixation after a simulated dust event under present and future climate conditions; the magnitude of stimulation depends on the degree of limitation related to the diazotrophic community composition.
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