TABLE 2.
Fraction of multiplying cells in dilution culture experiments with unamended autoclaved natural seawater as medium
| Seawater source (date) | Reference | Depth (m) | Total count (cells ml−6) | % Proportion of multiplying (culturability) | Method of growth detection |
|---|---|---|---|---|---|
| Bay of Banyuls-sur-Mer (2 November 1998) | 2 | 2 | 0.68 | 1.6 | FCMb |
| Oregon (May-July)c | 7 | Surface | 1.1-5.6 | 8.8 | DAPIc |
| Oregon (October-April)a | 7 | Surface | 0.9-1.9 | 1.2 | DAPI |
| Continental shelf, Japan (12 June 1998) | 9 | 350 | 0.31 | 7.7 | DAPI |
| Pacific Ocean (4 June 1998) | 9 | 500 | 0.55 | 20 | DAPI |
| Baltic Sea (October 1993) | 47 | 0-30 | 2.5-3.3 | 0.1-0.3 | DAPI |
| Baltic Sea (May 1994) | 47 | 0-100 | 0.7-1.2 | 7-14 | [3H]thymidine |
| Baltic Sea (May 1994) | 47 | 0-200 | 0.6-2.7 | 6-15 | [3H]thymidine |
| North Sea Skagerrak (August 1994) | 47 | 0-25 | 1.1-1.4 | 0.5-0.6 | [3H]thymidine |
| North Sea Skagerrak (August 1994) | 47 | 25-340 | 0.2-0.8 | 0.2-0.8 | [3H]thymidine |
| Mediterranean Sea (October 1994) | 47 | Surface | 0.5 | 16 | DAPI |
a
Samples were collected 1998, 1999, and 2000.
b
Flow cytometry.
c
DAPI staining, fluorescence microscopy.