Table 1.
Incidence by sampling site and depth of OPUs detected at 3 or more sampling locations.
| Site | OPU | |||||||
|---|---|---|---|---|---|---|---|---|
| 01 | 02 | 03 | 04 | 05 | 06 | 09 | 11 | |
| A6-2 m | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| A6-80 m | 20 | 0 | 3 | 0 | 1 | 0 | 0 | 0 |
| A6-160 m | 18 | 0 | 1 | 3 | 1 | 0 | 0 | 0 |
| A6-350 m | 26 | 0 | 0 | 0 | 4 | 0 | 0 | 0 |
| A6-700 m | 0 | 23 | 1 | 0 | 0 | 2 | 0 | 0 |
| B4-530 m | 28 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| B5-450 m | 3 | 7 | 6 | 0 | 0 | 1 | 0 | 0 |
| D3-68 m | 9 | 0 | 5 | 0 | 7 | 0 | 0 | 0 |
| D5-50 m | 11 | 0 | 1 | 0 | 8 | 0 | 2 | 1 |
| D5-100 m | 10 | 0 | 0 | 10 | 0 | 0 | 1 | 0 |
| D5-450 m | 11 | 0 | 1 | 11 | 0 | 0 | 0 | 1 |
| D5-900 m | 24 | 7 | 1 | 0 | 0 | 0 | 0 | 0 |
| E2-6 m | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| F6-2 m | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| H6-45 m | 10 | 0 | 9 | 0 | 0 | 0 | 1 | 0 |
| H6-280 m | 4 | 3 | 9 | 1 | 0 | 4 | 0 | 1 |
| MR1-2 m | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Pooled | 230 | 42 | 37 | 25 | 21 | 7 | 4 | 3 |
OPUs 1 and 3 included reference sequences from Alcanivorax and Marinobacter (see text). OPUs 2, 6, 9 and 11 were associated with Proteobacteria, and OPUs 4 and 5 were unclassified.