This project aims to assess the relevance of oceanic subtropical cyclonic (C) and anticyclonic (A) mesoscale eddies in the context of the Biological Pump (i.e. the production of organic matter and its transport to the deep ocean). To achieve this goal, we will study the linkage in the dynamics of mesoscale (O~100 km) and sub-mesoscale (O~10 km) physical processes and their biological and biogeochemical impacts, along the life history of C and A eddies (from their generation to a mature stage), in the Canary Current Corridor. The project will combine traditional oceanographic sampling with novel instrumentation (e.g. buoys and gliders) to sample down to the sub-mesoscale.