Fig. 1

Cell size distribution of the Alexandrium fundyense strains. Cell size distributions of Alex2 (A, B) and Alex5 (C, D) after exposure to direct grazing Centropages typicus (A, C) or after exposure to waterborne-cues from caged fed and caged starved C. typicus (B, D). Treatments with waterborne-cues were terminated after 48 h. The diameter of the measured particles (equivalent spherical diameter in µm) is plotted as kernel density estimation with the width corresponding to the relative occurrence of a particle in a respective size class. Box plots show the 25th, 50th and 75th percentile; the ends of the whiskers mark the 95% intervals