TABLE 3.
Benthic viral and bacterial parameters measured during a diel cycle (September 2001)a
| Time | Viral abundance (109 particles ml−1) | Bacterial abundance (109 cells ml−1) | VDR (107 particles ml−1 h−1) | VDR (h−1) | η | BSP-LEU (107 cells ml−1 h−1)b | BSP-TdR (107 cells ml−1 h−1)b | Viral control
|
|||
|---|---|---|---|---|---|---|---|---|---|---|---|
| % of BSP-LEU
|
% of BSP-TdR
|
||||||||||
| BS 25c | BS 40d | BS 25c | BS 40d | ||||||||
| 9 a.m. | 4.5 (0.7) | 3.4 (0.3) | BDe | BD | 0.60 | 2.3 (0.7) | 7.7 (1.5) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) |
| 3 p.m. | 4.9 (0.7) | 2.6 (0.2) | 6.7 (0.5) | 0.015 (0.001) | 0.60 | 8.6 (2.3) | 8.6 (2.1) | 3.1 (0.4) | 1.9 (0.2) | 3.1 (0.4) | 1.9 (0.2) |
| 9 p.m. | 5.1 (0.2) | 3.0 (0.2) | BD | BD | 0.61 | 11.6 (0.6) | 11.3 (1.9) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) |
| 3 a.m. | 5.8 (0.8) | 2.8 (0.2) | 12.4 (0.8) | 0.024 (0.003) | 0.62 | 8.6 (1.1) | 4.1 (0.8) | 5.8 (0.6) | 3.6 (0.4) | 12.2 (1.4) | 7.6 (0.8) |
| 9 a.m. | 5.6 (0.1) | 3.0 (0.2) | NDf | ND | 0.58 | ND | ND | ||||
| Avg | 5.2 (0.5) | 3.0 (0.3) | 4.8 (5.2) | 0.010 (0.010) | 0.60 (0.02) | 7.8 (3.4) | 7.9 (2.6) | 2.2 (2.4) | 1.4 (1.5) | 3.8 (5.0) | 2.4 (3.1) |
a
The values in parentheses are standard deviations for triplicate samples for viral and bacterial abundance and for viral control of BSP, as well as standard errors for triplicate samples for the VDR, and for four subsamples for LEU and TdR incorporation.
b
BSP was measured at the beginning of the decay experiments by determining incorporation of [14C]leucine (BSP-LEU) and [3H]thymidine (BSP-TdR).
c
Calculated with a burst size of 25 (BS 25).
d
Calculated with a burst size of 40 (BS 40).
e
BD, below the detection limit.
f
ND, not determined.