Our research focus is primary production under various environmental conditions due to stratification and physical forcing at different space and time scales, from the light cycle in the mixed layer to seasonal, interannual and climate variability.
These studies are complemented by processes studies on oceanic flows which influence at various scales vertical advection in the ocean.

Another important aspect is the study of changes in zooplanktonic and benthic populations in meso-scale structures and in long-term climate timeseries.

• Interactions, from small- to meso- spatial and temporal scales, between physical and chemical processes and biological primary production and its exploitation by secondary producers
• Effects of biological cycles on the chemical characteristics of the mixed layer and on ocean-atmosphere exchanges
• Diversity and spatial distribution of the zooplanktonic community in relation to the trophic status of the environment as a function of climatic, hydrological, biological and anthropogenic factors from the seasonal scale to the multi-annual scale.
• Role zooplanktonic key species in the transfer of energy and matter in the pelagic ecosystem (observation, experimentation)
• Diagnostic and/or statistical modeling of trophic networks, from nutrients to macroplankton
• Effects of natural micro-scale variability on the fluxes of biological processes by experimental studies of controlled environments and by modeling
• The role of small- to meso-scale flows, such as jets, fronts, eddies, filaments, on the development and circulation of oceanic water masses; impacts on vertical advection and ocean-atmosphere exchanges; Arctic Seas, Mediterranean Sea, Atlantic Ocean