Table 2. Mean stable isotope values (‰ ± SD of the mean) (n) for coral organic fractions.
| Isotope | Organic fraction | Symbiotic | Nonsymbiotic | P. major |
|---|---|---|---|---|
| δ13C | Algae | -13.84 ± 2.02 (17) | n/a | |
| Animal | -16.53 ± 2.22 (17) | -20.30 ± 0.83 (5) | ||
| Organic matrix | -24.31 ± 5.60 (23) | -26.08 ± 5.52 (17) | -23.23 ± 2.60 (3) | |
| δ15N | Algae | 4.35 ± 1.23 (18) | n/a | |
| Animal | 4.56 ± 1.40 (17) | 8.08 ± 1.23 (5) | ||
| Organic matrix | 4.09 ± 1.51 (24) | 12.28 ± 1.81 (17) | 4.66 ± 2.72 (3) |
Data for Oculina spp. are included with nonsymbiotic groups (see Results and Discussion). n/a, not applicable.