Figure 6

Picophytoplankton communities along the salinity gradient. Relative abundances (%) of cytometrically defined different picophytoplankton populations observed on the 20 sampling stations (S1 from S20). (A) Relative abundances of total pico- eukaryotes and cyanobacteria (i.e. Prochlorococcus-like. and Synechococcus-like). (B) Relative contribution of cytometrically defined different pico-eukaryotes populations (P-Eu1, P-Eu2, P-Eu3, P-Eu4 and P-Eu5) to the total pico-eukaryotes community.