Table 3. Results of two-way ANOVAs for Mg/Ca, Sr/Ca, Ba/Ca, and U/Ca of P. divaricata, P. astreoides, and O. faveolata.
| Variable | Effect | df | SS | F-statistic | p-value | Tukey |
| P. divaricata | ||||||
| Sr/Ca | Model | 3, 19 | 0.0241 | 1.49 | 0.2557 | |
| Temp. | 1 | 0.0170 | 3.15 | 0.0950 | ||
| Time | 1 | 0.0055 | 1.02 | 0.3273 | ||
| Temp. x Time | 1 | 0.0019 | 0.35 | 0.5622 | ||
| Mg/Ca | Model | 3, 19 | 0.2820 | 0.42 | 0.7427 | |
| Temp. | 1 | 0.0170 | 0.08 | 0.7868 | ||
| Time | 1 | 0.1575 | 0.70 | 0.4152 | ||
| Temp. x Time | 1 | 0.1045 | 0.46 | 0.5054 | ||
| U/Ca | Model | 3, 19 | 0.0264 | 2.02 | 0.1520 | |
| Temp. | 1 | 0.0005 | 0.10 | 0.7504 | ||
| Time | 1 | 0.0252 | 5.78 | 0.0287 | ||
| Temp. x Time | 1 | 0.0017 | 0.39 | 0.5435 | ||
| Ba/Ca | Model | 3, 19 | 2.8756 | 27.77 | <0.0001 | |
| Temp. | 1 | 0.1797 | 5.21 | 0.0365 | CO>TR | |
| Time | 1 | 2.5673 | 74.38 | <0.0001 | 6>0 | |
| Temp. x Time | 1 | 0.0038 | 0.11 | 0.7456 | ||
| P. astreoides | ||||||
| Sr/Ca | Model | 3, 22 | 0.1453 | 2.69 | 0.0751 | |
| Temp. | 1 | 0.0029 | 0.16 | 0.6926 | ||
| Time | 1 | 0.0860 | 4.78 | 0.0415 | ||
| Temp. x Time | 1 | 0.0570 | 3.17 | 0.0911 | ||
| Mg/Ca | Model | 3, 22 | 2.7689 | 2.47 | 0.0929 | |
| Temp. | 1 | 0.3173 | 0.85 | 0.3681 | ||
| Time | 1 | 0.0069 | 0.02 | 0.8934 | ||
| Temp. x Time | 1 | 2.5033 | 6.71 | 0.0180 | ||
| U/Ca | Model | 3, 22 | 0.0872 | 4.11 | 0.0210 | |
| Temp. | 1 | 0.0442 | 6.24 | 0.0218 | ||
| Time | 1 | 0.0003 | 0.04 | 0.8529 | ||
| Temp. x Time | 1 | 0.0398 | 5.61 | 0.0286 | ||
| Ba/Ca | Model | 3, 21 | 2242.8826 | 1.63 | 0.2181 | |
| Temp. | 1 | 808.5285 | 1.76 | 0.2012 | ||
| Time | 1 | 871.9859 | 1.90 | 0.1851 | ||
| Temp. x Time | 1 | 246.0976 | 0.54 | 0.4736 | ||
| O. faveolata | ||||||
| Sr/Ca | Model | 3, 13 | 0.2863 | 2.48 | 0.1206 | |
| Temp. | 1 | 0.0259 | 0.67 | 0.4308 | ||
| Time | 1 | 0.0962 | 2.50 | 0.1447 | ||
| Temp. x Time | 1 | 0.1983 | 5.16 | 0.0464 | ||
| Mg/Ca | Model | 3, 13 | 1.5265 | 1.94 | 0.1879 | |
| Temp. | 1 | 0.9719 | 3.70 | 0.0835 | ||
| Time | 1 | 0.0238 | 0.09 | 0.7696 | ||
| Temp. x Time | 1 | 0.5522 | 2.10 | 0.1779 | ||
| U/Ca | Model | 3, 13 | 0.2635 | 1.69 | 0.2309 | |
| Temp. | 1 | 0.0479 | 0.92 | 0.3591 | ||
| Time | 1 | 0.0458 | 0.88 | 0.3696 | ||
| Temp. x Time | 1 | 0.1922 | 3.71 | 0.0831 | ||
| Ba/Ca | Model | 3, 13 | 0.7797 | 8.77 | 0.0038 | |
| Temp. | 1 | 0.0001 | 0.00 | 0.9463 | ||
| Time | 1 | 0.3844 | 12.97 | 0.0048 | ||
| Temp. x Time | 1 | 0.2847 | 9.61 | 0.0113 | ||
The effect of temperature (Temp.) was fixed with two levels (CO = control 30.4°C, TR = treatment 31.6°C), and time was fixed with 2 levels (0, 6 weeks). When main effects (but no interaction terms) were significant, Tukey post hoc results are shown. Significant p-values (p≤0.05) are highlighted in bold. df = degrees of freedom, SS = sum of squares of the effect.