Figure 2
(a) Mean δ13C of 11 species of gorgonians and their Symbiodinium after a ~7.5 h incubation in dark bottles (filled shapes) or light bottles (open shapes). (b) The same data for host and symbiont fractions incubated in darkness and with enlarged scale to illustrate differences. Gray horizontal lines indicate the upper and lower 95% confidence intervals of the mean natural abundance δ13C values for all species (initial samples). Species abbreviations are listed in the Methods section and are presented in order of decreasing P/R. Error bars represent the 95% confidence interval of the mean.
