TABLE 4.
Carbon contents and C:N ratios of natural marine bacteria reported in the literature
| Habitat | Method(s)a
|
Carbon contentb (fg cell−1) | C:N ratio (atom atom−1) | Source or reference | |
|---|---|---|---|---|---|
| Preincubation | Measurements | ||||
| Estuary and coastal | |||||
| Knebel Vig | w/o | X-ray | 7–12 | 4.2–4.5 | 17 |
| Raunefjorden | w/o | X-ray | 9–19 | 3.8–4.2 | 17 |
| Scripps pier | U | Calc.c | 10.4–53.3 | NDd | 38 |
| Crane Neck | U | CHN, EFM | 15.4–24.8 | 2.9–5.0 | 29 |
| Otsuchi Bay | U | CHN, PC | (17.3–53.3) | 5.00–14.2 | 26 |
| Roskilde Fjord | U | CHN, EFM | (30–43) | ND | 4 |
| Roskilde Fjord | E | CHN, EFM | (26–84) | ND | 4 |
| Aburatsubo Bay | U | CHN, PC | (31.4–99.8) | 3.99–5.41 | 26 |
| Santa Rosa Sound | U | CHN, EFM | (54–90) | 2.83–6.07 | 28 |
| Puddefjorden | E | CHN, EFM | 106–214 | ND | 7 |
| Gulf of Mexico | U | CHN, EFM | (150) | 10.29 | 28 |
| Perdido Bay | U | CHN, EFM | (200–260) | 8.77–9.92 | 28 |
| Otsuchi Bay | w/o | HTCO, EFM | 15.7–33.1 | 5.0–5.9 | This study |
| Tokyo Bay | w/o | HTCO, EFM | 47.9 | 7.7 | This study |
| Ocean | |||||
| Subtropical Pacific | w/o | Calc.e | 2.45–8.76 | ND | 12 |
| Southern | U | CHN, EFM | (44–52) | ND | 6 |
| Equatorial Pacific | w/o | HTCO, EFM | 5.9 | 5.7 | This study |
| Southern (north) | w/o | HTCO, EFM | 6.5 | 6.3 | This study |
| Subtropical Pacific | w/o | HTCO, EFM | 12.5–12.8 | 8.1–8.3 | This study |
| Transitional north Pacific | w/o | HTCO, EFM | 13.3 | 5.4 | This study |
| Southern (south) | w/o | HTCO, EFM | 23.5 | 7.0 | This study |
a
w/o, natural water; U, in situ water culture; E, enriched culture; X-ray, X-ray microanalysis; EFM, epifluorescence microscopy; PC, particle counting.
b
Values in parentheses were calculated from carbon-to-biovolume ratios.
c
Calculation from macromolecules.
d
ND, not determined.
e
Calculation from ATP.