Table 2. Prasinophyte clade VII and Mamiellophyceae sequences as a function of size fraction and depth in the Tara Oceans and OSD metabarcode data sets.
| Data set | Fraction (μm) | Depth | # of samples |
Chlorophyta/photo (%) |
% of samples with clade VII sequences |
Clade VII/photo (%) |
Clade VII/chloro (%) |
Mamiellophyceae/photo (%) |
Mamiellophyceae/chloro (%) |
|||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | Max | Mean | Max | Mean | Max | Mean | Max | Mean | Max | |||||
| Tara | 0.8–5 | SUR | 40 | 15.7 | 54.5 | 100 | 10.8 | 53.1 | 43.4 | 97.5 | 2.7 | 19.2 | 24.8 | 93.7 |
| Tara | DCM | 33 | 20.4 | 58.6 | 100 | 11.5 | 58.2 | 45.4 | 99.3 | 7.2 | 34.1 | 36.6 | 92.1 | |
| Tara | 5–20 | SUR | 41 | 9.5 | 80.3 | 95 | 6.6 | 80.2 | 54.7 | 99.9 | 0.5 | 4.5 | 13.4 | 90.0 |
| Tara | DCM | 33 | 10.1 | 91.6 | 97 | 5.4 | 24.8 | 61.8 | 98.9 | 0.5 | 3.2 | 13.7 | 100.0 | |
| Tara | 20–180 | SUR | 42 | 7.9 | 39.9 | 98 | 5.8 | 29.0 | 55.9 | 98.4 | 0.2 | 3.0 | 6.3 | 63.4 |
| Tara | DCM | 28 | 9.0 | 48.7 | 100 | 5.6 | 23.0 | 61.6 | 98.9 | 0.8 | 19.6 | 9.1 | 63.3 | |
| Tara | 180–2000 | SUR | 45 | 15.6 | 56.1 | 96 | 10.0 | 51.1 | 51.3 | 100.0 | 2.1 | 21.7 | 18.3 | 87.0 |
| Tara | DCM | 31 | 14.4 | 61.2 | 97 | 10.2 | 30.9 | 57.3 | 100.0 | 0.9 | 7.0 | 11.7 | 57.9 | |
| Tara | All | All | 293 | 12.8 | 91.6 | 98 | 8.3 | 80.2 | 53.5 | 100.0 | 1.8 | 34.1 | 16.7 | 100.0 |
| OSD | 0.8–200 | SUR | 31 | 19.6 | 56.2 | 48 | 0.2 | 2.2 | 1.4 | 21.2 | 10.7 | 45.7 | 49.7 | 94.7 |
Abbreviations: DCM, deep chlorophyll maximum; OSD, ocean sampling day; SUR, surface.
Number of samples analyzed, percentage of samples with prasinophyte clade VII, mean and maximum contribution of prasinophyte clade VII and Mamiellophyceae to photosynthetic taxa and to Chlorophyta.