Table 1.
Depth profiles of the maximum potential proteolytic extracellular enzyme activity and activity per cell in the water column of the New Britain Trench.
| Depth (m) | Temperature (°C) | Proteolytic enzyme | Bacterial numbers | Cell-specific activity |
|---|---|---|---|---|
| Vmax (pmol L−1 h−1) | (× 103 cells ml−1 ± SD) | (pmol cell−1 h−1) | ||
| 75 | 26.5 | 4,136 | 123.7 ± 12.26 | 0.033 |
| 200 | 17.1 | 2,777 | 68.1 ± 16.06 | 0.041 |
| 1000 | 4.3 | 610 | 13.1 ± 1.15 | 0.047 |
| 2000 | 2.3 | 485 | 10.5 ± 0.82 | 0.046 |
| 3000 | 1.9 | 78 | 5.7 ± 0.37 | 0.014 |
| 4000 | 2.0 | 206 | 13.7 ± 1.59 | 0.015 |
| 5000 | 2.1 | 368 | 4.5 ± 0.15 | 0.082 |
| 6000 | 2.3 | 362 | 9.9 ± 0.47 | 0.037 |