Table 2.
List of the 30 most abundant haptophyte D1–D2 28S rRNA OTUs detected
| OTU ID | Total reads (N) | Total reads (%) | Total reads after subsampling (N) | Total reads after subsampling (%) | Depth | Size fraction | Group | Lowest taxonomic level possible to determine |
|---|---|---|---|---|---|---|---|---|
| OTU_L001 | 1,980 | 6.66 | 740 | 5.87 | Both | Both | Syracosphaeraceae | Syracosphaera pulchra |
| OTU_L002 | 1,830 | 6.15 | 685 | 5.43 | Both | Both | Syracosphaeraceae | Syracosphaera pulchra |
| OTU_L003 | 1,555 | 5.23 | 679 | 5.38 | Both | Both | Phaeocystaceae | Phaeocystis |
| OTU_L004 | 957 | 3.22 | 494 | 3.92 | Both | Both | Chrysochromulinaceae | Chrysochromulina acantha |
| OTU_L005 | 862 | 2.90 | 365 | 2.89 | Both | Both | Prymnesiaceae | Haptolina ericina/hirta/fragaria |
| OTU_L006 | 782 | 2.63 | 339 | 2.69 | Both | Both | Prymnesiaceae | Haptolina |
| OTU_L007 | 710 | 2.39 | 318 | 2.52 | Both | Both | Chrysochromulinaceae | Chrysochromulina |
| OTU_L008 | 676 | 2.27 | 299 | 2.37 | Both | Both | Chrysochromulinaceae | Chrysochromulina throndsenii/C. campanulifera |
| OTU_L009 | 659 | 2.22 | 319 | 2.53 | Both | Both | Prymnesiophyceae | Clade PRY‐LSU3 (Clade‐E–F?) |
| OTU_L010 | 648 | 2.18 | 269 | 2.13 | Both | Both | Phaeocystaceae | Phaeocystis |
| OTU_L011 | 645 | 2.17 | 224 | 1.78 | Both | Both | Chrysochromulinaceae | Chrysochromulina camella |
| OTU_L012 | 597 | 2.01 | 232 | 1.84 | Both | Both | Prymnesiophyceae | Clade PRY‐LSU2 (Clade‐D?) |
| OTU_L013 | 576 | 1.94 | 257 | 2.04 | Both | Both | Prymnesiaceae | Prymnesium polylepis |
| OTU_L014 | 560 | 1.88 | 257 | 2.04 | Both | Both | Chrysochromulinaceae | Chrysochromulina |
| OTU_L015 | 538 | 1.81 | 234 | 1.85 | Both | Both | Prymnesiaceae | Prymnesium kappa |
| OTU_L016 | 516 | 1.73 | 234 | 1.85 | Both | Both | Chrysochromulinaceae | Chrysochromulina camella |
| OTU_L017 | 491 | 1.65 | 198 | 1.57 | Both | Both | Prymnesiaceae | Prymnesium |
| OTU_L018 | 468 | 1.57 | 160 | 1.27 | Both | Both | Syracosphaeraceae | Syracosphaera pulchra |
| OTU_L019 | 467 | 1.57 | 188 | 1.49 | Only DCM | Both | Phaeocystaceae | Phaeocystis |
| OTU_L020 | 426 | 1.43 | 180 | 1.43 | Both | Both | Prymnesiophyceae | Clade PRY‐LSU2 (Clade‐D?) |
| OTU_L021 | 412 | 1.38 | 186 | 1.47 | Both | Both | Prymnesiaceae | Haptolina |
| OTU_L022 | 406 | 1.36 | 174 | 1.38 | Both | Both | Prymnesiaceae | Dicrateria rotunda |
| OTU_L023 | 367 | 1.23 | 137 | 1.09 | Both | Both | Syracosphaeraceae | Syracosphaera pulchra |
| OTU_L024 | 355 | 1.19 | 178 | 1.41 | Both | Both | Coccolithales | Coccolithaceae |
| OTU_L025 | 352 | 1.18 | 155 | 1.23 | Both | Both | Chrysochromulinaceae | Chrysochromulina simplex |
| OTU_L026 | 351 | 1.18 | 130 | 1.03 | Both | Both | Chrysochromulinaceae | Chrysochromulina throndsenii |
| OTU_L027 | 339 | 1.14 | 140 | 1.11 | Both | Both | Rhabdosphaeraceae | Algirosphaera robusta |
| OTU_L028 | 327 | 1.10 | 157 | 1.24 | Both | Both | Chrysochromulinaceae | Chrysochromulina |
| OTU_L029 | 305 | 1.03 | 117 | 0.93 | Both | Both | Chrysochromulinaceae | Chrysochromulina simplex |
| OTU_L030 | 291 | 0.98 | 133 | 1.05 | Both | Both | Chrysochromulinaceae | Chrysochromulina simplex |
The taxonomic assignment was based on phylogenetic placement.