Fig. 3: Phytoplankton community structure responses to nutrient amendments.
From: Patterns of (micro)nutrient limitation across the South Pacific Ocean
a Picophytoplankton derived from flow cytometry analysis from selected experiments. Heat maps indicate fold changes in flow cytometry-derived cell properties following nutrient amendment relative to unamended controls (PPE, photosynthetic picoeukaryotes; Pro, Prochlorococcus; Syn, Synechococcus; F, cellular fluorescence). Treatments in the heatmaps that are labeled with “*” have means that are statistically different from controls with the applied statistical test (one-way ANOVA, α = 0.05, followed by Tukey posthoc test). The superimposed scatter plots are the percentage contributions of each picophytoplankton fluorescence (cell abundances × cellular fluorescence) to total picophytoplankton fluorescence. b Contribution of phytoplankton size classes to total chlorophyll-a for initial experimental conditions and treatments containing at least +N.
