TABLE 2.
Vertical distribution of bacterial density, bacterial DNA and RNA concentrations, and their relative contributions to the nucleic acid pools in sediments collected in September 1996
| Depth (mm) | Bacterial density (cells [108 g−1]) (SE) | Concn (μg g−1)a
|
Relative contribution (%)b
|
||
|---|---|---|---|---|---|
| B-DNA | B-RNA | B-DNA/DNA | B-RNA/RNA | ||
| 0–5 | 3.2 (0.8) | 1.1 | 1.4 | 3.4 | 7.6 |
| 5–10 | 3.1 (0.2) | 1.0 | 1.3 | 5.9 | 6.1 |
| 10–20 | 1.7 (0.3) | 0.5 | 0.7 | 5.0 | 9.0 |
| 20–30 | 1.1 (0.0) | 0.4 | 0.5 | 2.7 | 9.5 |
| 30–40 | 0.9 (0.2) | 0.3 | 0.4 | 4.4 | 15.6 |
| 40–50 | 0.8 (0.1) | 0.3 | 0.3 | 2.8 | 7.0 |
| 50–60 | 0.6 (0.1) | 0.2 | 0.3 | 1.8 | 5.2 |
| 60–100 | 0.7 (0.0) | 0.2 | 0.3 | 6.8 | 20.9 |
| 100–150 | 0.6 (0.1) | 0.2 | 0.2 | 5.2 | 24.5 |
a
B-DNA, bacterial DNA; B-RNA, bacterial RNA.
b
Relative contributions of bacterial DNA to the DNA pool (B-DNA/DNA) and of bacterial RNA to the RNA pool (B-RNA/RNA) are given.