Fig. 3: Relationship between Chl a and green algal contributions to the eukaryotic phytoplankton community.

a Chlorophyll a (μg kg−1) versus percent prasinophytes out of plastid amplicons. Symbol shape corresponds to stability period and color corresponds to depth. The plot is divided into quadrants by Chl a values (above and below 0.188 μg kg−1, the 75th percentile Chl a value at BATS in the surface 140 m from June 2016 to December 2019) and by the 75th percentile of prasinophyte amplicons out of plastid amplicons (33.2%). b Prasinophyte group contributions to prasinophyte amplicon counts per quadrant. The number of ASVs per quadrant is indicated, and the black semi-circle around the pie charts indicate the contribution of Class II to prasinophyte ASVs.