Table 2. Changes in DOC, DCNS, and bacterial growth efficiency over the duration of 48 h seawater cultures.
| Treatment | DOC change (μmol C l−1) | DCNS change (μmol C l−1) | Bact. C change (μmol C l−1) | Bacterial specific growth rate (per day) | Bacterial growth efficiency |
|---|---|---|---|---|---|
| Turbinaria | −21.5±1.3 | −7.89±8.76 | 1.25±0.08 | 0.61±0.03 | 0.06±0.01 |
| Amansia | −23.9±1.6 | 0.52±0.61 | 2.86±0.07 | 1.11±0.01 | 0.12±0.01 |
| Halimeda | −7.7±1.5 | −3.01±0.25 | 1.46±0.38 | 0.65±0.11 | 0.20±0.08 |
| Porites | −2.8±2.0 | −1.09 | 0.42±0.15 | 0.35±0.08 | 0.18±0.08 |
| Control | −1.6±0.3 | 1.56±3.12 | 0.43±0.02 | 0.41±0.15 | 0.27±0.04 |
Abbreviations: Bact. C, bacterial carbon; DCNS, dissolved combined neutral sugar; DOC, dissolved organic carbon.
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 3). Treatments that differ significantly from the control (Dunnet's P<0.05) are emphasized in bold italics.