Figure 3: Absolute biomasses and growth rates of phytoplankton groups.
From: Faster growth of the major prokaryotic versus eukaryotic CO2 fixers in the oligotrophic ocean

Comparison of the 14C tracer-based estimates of cellular (a) and population (b) biomasses and growth rates (internal intermediate grey bars) of large plastidic protists (Pl-L), small plastidic protists (Pl-S), Prochlorococcus (Pro) and Synechococcus (Syn) in the two regions: combined Equatorial waters (EQ) and Southern gyre (SG) and Southern temperate waters (ST). Thin white bars (a) indicate biovolume-based estimates of cellular biomass. Note the log scale of the x axis. Error bars indicate propagated single s.e.