Flow cytometry allows us to understand the complex structure of phytoplankton populations, mostly made up of unicellular algae below 3 microns, and track seasonal changes in aquatic ecosystems.

Cytometry platform of the Oceanographic Observatory of Banyuls s / Mer is labeled by INSU in 2008 (ocean-atmosphere section) as part of its mission to " National Analysis Service ". It includes support analyzes Observation Mid Coast Service (SOMLIT) French and provides counts of picoplankton and marine bacteria to the national base SOMLIT data.