TABLE 3.
Abundance of select bacteria in the Mid-Atlantic Bight in August 2003
| Source | Depth (m) | % of total prokaryotes from indicated sourcea
|
||||||
|---|---|---|---|---|---|---|---|---|
| Eub338-positiveb | α-Proteobacteria | SAR11 | Cytophaga-like | Roseobacter | Erythrobacter | AAP bacteria | ||
| Gulf Stream | 0 | 58 (4.2) | 14 (1.5) | 34 (3.8) | 11 (2.6) | 7.0 (2.3) | 3.7 (1.3) | 12 (1.3) |
| 7 | 63 (3.8) | 7.5 (2.2) | 32 (6.3) | 14 (12) | 7.2 (1.9) | 3.7 (2.8) | ND | |
| 13 | 60 (3.8) | 14 (12.2) | 28 (6.8) | 16 (1.5) | 4.9 (1.6) | 3.8 (1.5) | ND | |
| 20 | 62 (4.6) | 9.8 (2.4) | 38 (5.2) | 9.6 (1.3) | 4.2 (1.0) | 2.6 (0.9) | 18 (2.1) | |
| 50 | NDc | ND | 26 (4.9) | ND | ND | ND | ND | |
| 80 | ND | ND | 28 (9.9) | ND | ND | ND | 11 (1.4) | |
| Gulf Stream | 0 | 36 (5.5) | 21 (7.6) | 26 (5.4) | 3.5 (0.9) | 3.1 (1.5) | 5.6 (1.9) | 8.0 (0.8) |
| 8 | 56 (4.9) | 8.2 (2.3) | 20 (4.8) | 8 (23) | 4.3 (0.7) | 1.6 (0.6) | 9.6 (0.8) | |
| 15 | 50 (4.3) | 7.7 (1.2) | 24 (4.4) | 7.7 (1.2) | 8.1 (12) | 1.2 (1.3) | 12 (1.1) | |
| 30 | 38 (9.9) | 1.9 (0.9) | 19 (3.9) | 1.8 (0.9) | 3.3 (12) | 0.9 (0.8) | 8.6 (0.5) | |
| 50 | 35 (11.0) | 6.8 (1.9) | 22 (4.7) | 6.8 (1.9) | 1.5 (1.1) | 1.3 (1.2) | 16 (1.8) | |
| 100 | 23 (2.7) | 0.7 (0.7) | 11 (7.2) | 0.5 (0.8) | 1.0 (0.6) | 0.4 (1.2) | 2.0 (0.4) | |
| Coast | 0 | 60 (9.1) | 6.4 (3.0) | 27 (5.5) | 17 (4.2) | 3.5 (1.1) | 1.4 (1.3) | 5.4 (0.7) |
| 9 | 73 (15.7) | 30 (12) | 28 (3.8) | 24 (12) | 2.8 (1.2) | 0.6 (0.5) | 10 (0.8) | |
| 17 | 69 (12.6) | 18 (4.5) | 29 (6.9) | 39 (4.8) | 3.4 (1.6) | 0.9 (0.8) | 17 (1.3) | |
| 27 | 63 (9.5) | 26 (13) | 22 (4.4) | 48 (14) | 5.2 (2.0) | 1.5 (0.9) | 17 (1.0) | |
| 50 | 37 (8.8) | 5.4 (2.5) | 20 (4.4) | 16 (6.5) | 6.0 (2.1) | 2.9 (0.8) | 2.6 (0.4) | |
| 100 | 41 (11.1) | 6.8 (3.6) | 14 (5.4) | 46 (18) | 5.0 (4.2) | 1.0 (1.5) | 0.8 (0.2) | |
| Shelf break | 0 | 74 (3.8) | 40 (6.1) | 31 (3.7) | 25 (4.3) | 5.6 (0.9) | 2.9 (1.5) | 0.8 (0.1) |
| 5 | 73 (3.4) | 32 (6.0) | 32 (4.2) | 22 (4.7) | 4.3 (1.2) | 1.8 (0.9) | 2.1 (0.2) | |
| 9 | 75 (8.2) | 30 (6.8) | 28 (5.0) | 24 (2.8) | 7.7 (1.5) | 1.7 (0.6) | 2.5 (0.2) | |
| 15 | 61 (6.5) | 27 (6.1) | 34 (6.2) | 18 (6.4) | 18 (6.4) | 2.2 (1.1) | 3.1 (0.4) | |
| 35 | 59 (6.1) | 20 (5.7) | 20 (4.0) | 20 (4.8) | 4.2 (2.1) | 1.3 (0.8) | 1.9 (0.3) | |
| 45 | ND | 16 (4.3) | 27 (4.7) | 31 (5.6) | 3.9 (1.2) | 1.4 (1.0) | 3.0 (0.8) | |
a
Values are averages for 10 fields of view. Standard errors are given in parentheses.
b
Eub338 is the general bacterial probe. The average negative-control FISH probe was 3% of total prokaryotes.
c
ND, not determined.