Figure 3. Relative abundances of OTUs retrieved from the picoplanktonic fraction of the oxic zone and the oxycline of the Lake Pavin during autumn 2004 (23) and spring/summer 2005 (this study).

For each graph, the relative abundances of OTUs corresponding to different trophic strategies displayed within the five taxonomic groups containing the targeted small flagellates are proposed. For novel clades (i.e. with no cultured representatives; NC), trophic strategies were not attributed.