Table 1.
Physiochemical parameters and location information together with mcrA gene diversity and richness indices of sediments collected from South China Sea.
| Sampling site | Sampling position | Seawater depth (m) | Temperature (∘C) | Depth (mbsf) | pH value (‰) | Salinity | Number of valid sequences | OTU | Coverage | Chao1 | Shannon–Wiener index |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E401B | 21∘31N/119∘59E | 3300 | 2.5 | 3.7 | NK | 34.39 | 47 | 15 | 0.9362 | 15.9 | 2.4664 |
| E407B | 18∘29N/120∘00E | 1900 | 2.0∼4.0 | 1 | NK | 34.56 | 48 | 13 | 0.8750 | 23 | 2.1579 |
| CF5B | 19∘55N/115∘13E | 1153 | 2.0∼4.0 | 7.5 | NK | 34.56 | 47 | 13 | 0.9362 | 12 | 2.0751 |
| 08CF7S | 22∘70N/119∘17E | 1301 | 2.0∼4.0 | 0∼0.1 | NK | NK | 46 | 11 | 0.9783 | 10.25 | 2.0846 |
| E702S | 19∘38N/115∘13E | 2370 | 2.9 | 0∼0.1 | 7.5 | 34.58 | 42 | 13 | 0.9048 | 15.67 | 2.3181 |
| E704S | 20∘15N/114∘44E | 175 | 13.5 | 0∼0.1 | 7.77 | 34.57 | 45 | 12 | 0.9111 | 14.25 | 2.2733 |
| E706S | 20∘44N/114∘15E | 79 | 18.9 | 0∼0.1 | 8.01 | 34.39 | 46 | 7 | 0.9783 | 7.5 | 1.6134 |
| E707S | 21∘00N/113∘60E | 80 | 18.5 | 0∼0.1 | 8.08 | 34.36 | 47 | 1 | 1.0000 | –1 | 0 |
| E708S | 21∘14N/113∘45E | 70 | 19.5 | 0∼0.1 | 8.18 | 34.32 | 50 | 5 | 0.9600 | 7 | 0.5837 |
| E709S | 21∘29N/113∘30E | 40 | 21.3 | 0∼0.1 | 8.21 | 34.21 | 53 | 10 | 0.9623 | 11 | 1.948 |
| E510S | 19∘30N/111∘16E | 100 | 20.2 | 0∼0.1 | 7.54 | 34.44 | 50 | 17 | 0.8000 | 67 | 2.3425 |
| E201S | 22∘51N/116∘48E | 30 | 21.4 | 0∼0.1 | 8.2 | 34.32 | 46 | 18 | 0.8043 | 49 | 2.5833 |