Fig. 1.
Physiological parameters for (a) Acropora millepora and (b) Stylophora pistillata showing effective quantum yield of photosystem (PS)II (ΔF/FM'; white symbols) and maximum quantum yield of PSII (FV/FM; black symbols) for the controls (27 °C; circle symbols) and treatments (32 °C; triangle symbols). Symbiodinium cell density for (c) A. millepora and (d) S. pistillata for the control (27 °C; white circles, dashed line) and treatment (32 °C; red circles, solid line) with images of coral fragments from each time-point showing visual paling over time. The gross oxygen production for (e) A. millepora and (f) S. pistillata for the control (27 °C; white bars) and treatment (32 °C; red bars) at each time point (n = 4). Asterisks indicate significant differences between treatments where *P < 0.05, ** P < 0.01 and ***P < 0.001, and letters indicate significant differences between time for the heat-treated samples at P < 0.05 (n = 5). Averages (± SE) shown for all