Table 3.
Results of the Generalized Linear Models (GLM) testing for significant effects of region (Alta Guajira, Media Guajira, San Andrés, Tayrona, Cartagena) on seagrass soil dry bulk density (g cm−3), soil organic carbon content (%), soil organic matter content (%), soil organic carbon stocks (Mg Corg ha−1 in 1-m thick) , δ13C (‰), and content of sediment grain-sizes < 0.016 mm, > 0.0.016 < 0.125 mm and > 0.5 mm (%) in the Colombian Caribbean.
| Variable | Factor | F | df | P value |
|---|---|---|---|---|
| Dry bulk density (g cm−3) | Region | 74.23 | 4 | < 0.001 |
| Organic carbon (%) | Region | 21.25 | 2 | < 0.001 |
| Organic matter (%) | Region | 83.73 | 4 | < 0.001 |
| Corg stocks (Mg Corg ha−1) | Region | 12.47 | 4 | < 0.001 |
| δ13C (‰) | Region | 148.94 | 2 | < 0.001 |
| < 0.016 mm (%) | Region | 93.36 | 3 | < 0.001 |
| > 0.016 < 0.125 mm (%) | Region | 180.86 | 3 | < 0.001 |
| > 0.5 mm (%) | Region | 145.13 | 3 | < 0.001 |