Nicolas Mayot is a post-doctoral researcher working in the context of the FORMAL scientific project. His current project aims to assess the phenology of phytoplankton in the Southern Ocean, at the surface and at depth, using BGC-Argo floats, considering the response of phytoplankton communities. His previous research projects have focused on the study of processes linked to primary production, air-sea CO2 fluxes and carbon storage in the oceans. The temporal scales of his research range from phytoplankton bloom episodes to annual cycles, including interannual and decadal variability.