Table 4.
Frequency of infected cells (FIC), frequency of lysogenized cells (FLC), lytic and viral production (VP) rates at different depth layers in the three sections.
| Water mass | Depth (m) | FIC (%) | FLC (%) | Lytic VP (N × 103 cells mL−1 h−1) | Lysogenic VP (N × 103 cells mL−1 h−1) | ||||
|---|---|---|---|---|---|---|---|---|---|
| Avg (SD) | N | Avg (SD) | N | Avg (SD) | N | Avg (SD) | N | ||
| NORTHERN SECTION | |||||||||
| OMZ | 459 | 21.2 (4.0) | 4 | 2.9 (1.7) | 3 | 42.1 (9.4) | 4 | 8.6 (−) | 1 |
| LNADW | 3371 | 32.8 (11.3) | 4 | 12.2 (3.7) | 3 | 12.3 (1.6) | 4 | 3.9 (4.6) | 3 |
| AABW | 4735 | 32.3 (18.3) | 4 | 27.3 (19.8) | 3 | 13.8 (10.9) | 4 | 8.5 (8.2) | 3 |
| VEMA FRACTURE ZONE | |||||||||
| OMZ | 428 | 21.7 (9.4) | 3 | 9.2 (−) | 2 | 41.3 (9.1) | 3 | 9.7 (−) | 2 |
| LNADW | 3398 | 25.9 (6.8) | 3 | 11.9 (6.4) | 3 | 12.5 (1.5) | 3 | 2.7 (1.4) | 3 |
| AABW | 5010 | 31.6 (10.8) | 3 | 10.1 (−) | 2 | 13.6 (6.9) | 3 | 4.3 (−) | 2 |
| EASTERN SECTION | |||||||||
| OMZ | 442 | 23.1 (3.4) | 4 | 13.0 (2.1) | 3 | 39.7 (7.4) | 4 | 30.1 (−) | 2 |
| LNADW | 3220 | 39.7 (9.5) | 4 | 22.5 (22.7) | 3 | 9.4 (0.6) | 4 | 4.4 (−) | 2 |
| AABW | 4974 | 61.5 (10.0) | 4 | 19.3 (17.7) | 3 | 10.8 (2.5) | 4 | 1.4 (−) | 2 |
Abbreviations: AABW, Antarctic Bottom Water; FIC, frequency of infected cells in % of total prokaryotic abundance; FLC, frequency of lysogenic cells; LNADW, Lower North Atlantic Deep Water; N, number of samples; OMZ, oxygen minimum zone; UNADW, Upper North Atlantic Deep Water; VP, viral production. Depth is given as average values. Numbers in bold indicate significant differences (p ≤ 0.05).