TABLE 1.
Number of libraries analyzed, total clones screened, and percentage of clones affiliating with unknown or known groupsa
| Marine system | No. of libraries | Total no. of clones | % of clones within:
|
Source or reference | ||||
|---|---|---|---|---|---|---|---|---|
| Unknown groups
|
Known groups
|
|||||||
| Novel stramenopiles | Novel alveolates | Other | Phototrophic | Heterotrophic (BHS) | ||||
| Open Sea | ||||||||
| North Atlantic | 2 | 37 | 18.9 | 18.9 | 0 | 48.6 | 13.5 (0) | 9 |
| Mediterranean | 1 | 63 | 19.0 | 19.0 | 0 | 47.6 | 14.3 (0) | 9 |
| Pacific | 1 | 37 | 18.9 | 16.2 | 0 | 51.4 | 13.5 (0) | 34 |
| Antarctica | 2 | 125 | 27.2 | 0 | 3.2 | 59.2 | 10.4 (0) | 9 |
| Coast | ||||||||
| Orkney | 1 | 81 | 17.3 | 6.2 | 6.2 | 14.8 | 55.6 (0) | This study |
| Helgoland | 6 | 633 | 4.7 | 46.8 | 0.6 | 26.7 | 21.1 (1.6) | This study |
| Roscoff | 8 | 367 | 11.7 | 16.3 | 3.8 | 36.2 | 31.9 (2.5) | This study |
| Blanes Bay | 4 | 339 | 10.0 | 41.0 | 0.9 | 35.1 | 10.3 (2.7) | This study |
| Anoxic | ||||||||
| Shallow sediments | 2 | 74 | 14.9 | 0 | 33.8 | 10.8 | 40.5 (2.7) | 7 |
| Hydrothermal vents | 7 | 269 | 6.3 | 18.2 | 11.5 | 19.7 | 44.2 (16.4) | 11 |
| Salt marshes | 3 | 76 | 0 | 0 | 9.2 | 43.4 | 47.4 (1.3) | 42 |
a
Known groups were separated into those containing mostly phototrophic or heterotrophic organisms. BHS, basal heterotrophic stramenopiles. Deep Antarctic libraries (28) are not included in the table because they were not quantitatively analyzed. The analysis of shallow sediments and salt marshes is semiquantitative (does not take into account the redundancy of identical clones). Metazoan clones have been excluded in all cases.