TABLE 3.
Average abundances of picoplankton and viruses, VPR, PPP, and picoplankton turnover time in the different water massesa
| Water sample | PA (105 ml−1)b | VA (105 ml−1)c | VPRd | PPP (cells ml−1 h−1)e | PPTT (days)f |
|---|---|---|---|---|---|
| Surface | 2.9 (0.5) | 26.0 (7.4) | 9 (1) | 123.6 (73.0) | 98 |
| NACW/SACW | 1.5 (0.5) | 18.4 (5.0) | 12 (5) | 33.2 (21.0) | 272 |
| AAIW/MSOW | 0.5 (0.2) | 13.3 (5.0) | 27 (12) | 3.4 (3.2) | 604 |
| NEADW/LSW | 0.2 (0.0) | 13.4 (4.0) | 67 (22) | 0.5 (0.2) | 1620 |
| LDW | 0.2 (0.0) | 16.1 (7.3) | 110 (77) | 0.8 (0.6) | 1091 |
a
SD shown in parentheses.
b
PA, picoplankton abundance.
c
VA, viral abundance.
d
VPR, virus-to-picoplankton ratio.
e
PPP, picoplankton production.
f
PPTT, picoplankton turnover time.