Articles | Volume 22, issue 24
https://doi.org/10.5194/bg-22-7985-2025
https://doi.org/10.5194/bg-22-7985-2025
Research article
 | 
15 Dec 2025
Research article |  | 15 Dec 2025

Marine snow surface production and bathypelagic export at the Equatorial Atlantic from an imaging float

Joelle Habib, Lars Stemmann, Alexandre Accardo, Alberto Baudena, Franz Philip Tuchen, Peter Brandt, and Rainer Kiko

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Cited articles

Accardo, A., Laxenaire, R., Baudena, A., Speich, S., Kiko, R., and Stemmann, L.: Intense and localized export of selected marine snow types at eddy edges in the South Atlantic Ocean, Biogeosciences, 22, 1183–1201, https://doi.org/10.5194/bg-22-1183-2025, 2025. 
Alldredge, A. L. and Silver, M. W.: Characteristics, dynamics and significance of marine snow, Prog. Oceanogr., 20, 41–82, https://doi.org/10.1016/0079-6611(88)90053-5, 1988. 
Armstrong, R. A., Lee, C., Hedges, J. I., Honjo, S., and Wakeham, S. G.: A new, mechanistic model for organic carbon fluxes in the ocean based on the quantitative association of POC with ballast minerals, Deep Sea Res. Part II Top. Stud. Oceanogr., 49, 219–236, https://doi.org/10.1016/S0967-0645(01)00101-1, 2001. 
Athie, G. and Marin, F.: Cross-equatorial structure and temporal modulation of intraseasonal variability at the surface of the Tropical Atlantic Ocean, J. Geophys. Res., 113, C08020, https://doi.org/10.1029/2007JC004332, 2008. 
Bach, L. T., Stange, P., Taucher, J., Achterberg, E. P., Algueró-Muñiz, M., Horn, H., Esposito, M., and Riebesell, U.: The Influence of Plankton Community Structure on Sinking Velocity and Remineralization Rate of Marine Aggregates, Glob. Biogeochem. Cycles, 33, 971–994, https://doi.org/10.1029/2019GB006256, 2019. 
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Short summary
This study investigates how carbon moves from the ocean surface to the depths in the equatorial Atlantic, contributing to long-term carbon storage. Using an Argo float equipped with a camera, we captured two periods with major carbon export events. By identifying particle types and their sinking behaviors, we found that smaller, compact particles are key drivers of carbon transport. Our findings underscore the value of using imaging tools on autonomous platforms in tracking carbon sequestration.
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