Table 3. Compositional characteristics of exudates and proportional removal of exudates over the duration of 48 h seawater cultures.

Treatment	Starting exudate DCNS yield	Remaining exudate 48 h DCNS yield	Exudate removed 48 h DCNS yield	% Change in exuded DCNS	% Change in exuded DOC
Turbinaria	33%±8%	30%±0%	−49%±47%	−19%±20%	−19%±1%
Amansia	8%±0%	9%±1%	−5%±2%	6%±7%	−22%±1%
Halimeda	14%±7%	5%±7%	−78%±16%	−54%±20%	−18%±4%
Porites	56%	34%	−104%	−24%	−45%±10%

Abbreviations: DCNS, dissolved combined neutral sugar; DOC, dissolved organic carbon.

Exudate concentrations are calculated after subtracting the control concentrations of DOC and DCNS from each exudate treatment (see Figure 1c for raw concentrations and Figure 1d for mol % of each sugar in the exuded fraction). DCNS yields are reported for starting exudates (treatment—control at time zero), remaining exudates (treatment—control after 48 h incubation) and the exudate removed (remaining—starting). Proportional removal (% change) of exuded DOC and DCNS is calculated as the ratio of the 48-h change in exudate concentration to the starting exudate concentration. Each entry is the mean and s.d. of two replicate incubations (one Porites DCNS replicate was excluded from mean calculations as an outlier; see Figure 1).