Figure 3. Abundance and density-weighted average summer depth of phytoplankton groups.

Panels: A = Chrysophytes; B = Cryptophytes; C = Cyanobacteria; D = Diatoms. Cyanobacteria does not include picoplankton, which can be important contributors to Lake Baikal primary productivity in the summer, but are not routinely measured. Bubble size indicates average abundance (1000 cells l⁻¹).