Fig. 4. Recovery of (A) dinoflagellates, (B) exposed endoliths and (C) endoliths under intact tissue, as reflected by F_v/F_m (values are means ± 95% confidence limits during 6 days following the heating experiment). Fragments were exposed to one of four treatments: 31°C in the sun (red squares), 31°C in shade (green diamonds), 25°C in the sun (blue triangles) and 25°C in shade (black circles). Please note that day 1 is still within the heating experiment.