| Locations | Sample ID | TOC (wt%) | N (%) | C/N Ratio |
| Iddo | L1 | 1.14 | 0.11 | 10.36 |
| Oko baba | L3 | 4.25 | 0.42 | 10.12 |
| Yaba | L5 | 4.46 | 0.43 | 10.37 |
| Igbobi | L7 | 3.96 | 0.39 | 10.15 |
| Alapere | L9 | 4.24 | 0.41 | 10.34 |
| Ajegunle | L10 | 1.22 | 0.12 | 10.17 |
| Oruba | L11 | 4.65 | 0.46 | 10.11 |
| Mid lagoon | L14 | 3.80 | 0.38 | 10.00 |
| Ilemera | L17 | 4.33 | 0.43 | 10.07 |
| Moba | L20 | 4.04 | 0.40 | 10.10 |