Articles | Volume 22, issue 5
https://doi.org/10.5194/bg-22-1183-2025
https://doi.org/10.5194/bg-22-1183-2025
Research article
 | 
05 Mar 2025
Research article |  | 05 Mar 2025

Intense and localized export of selected marine snow types at eddy edges in the South Atlantic Ocean

Alexandre Accardo, Rémi Laxenaire, Alberto Baudena, Sabrina Speich, Rainer Kiko, and Lars Stemmann

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Cited articles

Accardo, A.: AlexandreAccardo/BGC-Argo-UVP6-Cape-Bassin: BGC-Argo-UVP6-Cape-Bassin, Zenodo [code], https://doi.org/10.5281/ZENODO.14931728, 2025. 
Accardo, A., Laxenaire, R., Baudena, A., Speich, S., Kiko, R., and Stemmann, L.: BGC-Argo-UVP6-Cape-Bassin, Zenodo [data set], https://doi.org/10.5281/zenodo.14933284, 2025. 
Alldredge, A.: The carbon, nitrogen and mass content of marine snow as a function of aggregate size, Deep-Sea Res. Pt. I, 45, 529–541, https://doi.org/10.1016/S0967-0637(97)00048-4, 1998. 
Alldredge, A. L. and Gotschalk, C.: In situ settling behavior of marine snow1: Sinking rates of marine snow, Limnol. Oceanogr., 33, 339–351, https://doi.org/10.4319/lo.1988.33.3.0339, 1988. 
Ascani, F., Richards, K. J., Firing, E., Grant, S., Johnson, K. S., Jia, Y., Lukas, R., and Karl, D. M.: Physical and biological controls of nitrate concentrations in the upper subtropical North Pacific Ocean, Deep-Sea Res. Pt. II, 93, 119–134, https://doi.org/10.1016/j.dsr2.2013.01.034, 2013. 
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The open ocean helps mitigate climate change by storing CO2 via the biological carbon pump (BCP), which involves processes like organic carbon production at the surface and transferring it to the deep ocean via various pathways. By deploying an autonomous platform, we found significant marine snow accumulation from the surface to the mesopelagic zone in frontal regions between eddies. We suggest that the coupling of hydrodynamics at eddy edges and biological activity may enhance this process.
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