Table 3. Names and statistical information (referred to samples with non-zero abundance) of the taxa included in the principal component analysis.
| Times present | Max. | Mean ± SD | |
|---|---|---|---|
| DINOFLAGELLATES | |||
| Gyrodinium spp. | 374 | 380 | 70 ± 61 |
| Torodinium robustum | 362 | 340 | 55 ± 47 |
| Lessardia elongata | 350 | 548 | 41 ± 44 |
| Oxytoxum variabile | 309 | 1233 | 44 ± 83 |
| Oxytoxum minutum | 263 | 190 | 32 ± 26 |
| Cochlodinium spp. | 251 | 100 | 24 ± 18 |
| Scrippsiella spp. | 246 | 100 | 22 ± 17 |
| Dinoflagellate cysts | 232 | 90 | 19 ± 12 |
| Oxytoxum spp. | 194 | 70 | 17 ± 11 |
| Unid. dinoflagellates (with inclusion bodies) | 146 | 200 | 42 ± 39 |
| Protoperidinium spp. | 131 | 80 | 15 ± 10 |
| Pronoctiluca acuta | 110 | 190 | 16 ± 18 |
| Tripos teres* | 107 | 50 | 16 ± 9 |
| Oxytoxum coronatum | 104 | 180 | 18 ± 21 |
| Gymnodinium spp (20–40 μm) | 99 | 70 | 17 ± 11 |
| Gymnodinium spp. (> 40 μm) | 95 | 60 | 16 ± 10 |
| Micracanthodinium claytonii | 88 | 50 | 15 ± 8 |
| Oxytoxum scolopax | 86 | 50 | 13 ± 6 |
| Podolampas spinifer | 84 | 30 | 12 ± 5 |
| Oxytoxum mediterraneum | 79 | 40 | 14 ± 7 |
| Gymnodinium sp. ("pumpkin") | 78 | 60 | 17 ± 12 |
| Paleophalacroma unicinctum | 77 | 30 | 12 ± 5 |
| Oxytoxum longiceps | 71 | 40 | 13 ± 6 |
| Tripos fusus* | 65 | 60 | 13 ± 8 |
| Dinophysis spp. (small, rounded) | 64 | 40 | 13 ± 6 |
| Gonyaulax spp. | 62 | 20 | 11 ± 2 |
| Unid. dinoflagellates (large) | 406 | 1520 | 311 ± 213 |
| Unid. dinoflagellates (small, < 20 μm) | 405 | 9042 | 2110 ± 1397 |
| DIATOMS | |||
| Unid. pennate diatoms ("benthic-like", large) | 366 | 7124 | 134 ± 420 |
| Unid. pennate diatoms (small, < 20 μm) | 344 | 2466 | 202 ± 321 |
| Leptocylindrus mediterraneus (with Rhizomonas setigera) | 201 | 1620 | 76 ± 130 |
| Unid. pennate diatoms | 201 | 960 | 67 ± 142 |
| Thalassiosira spp. | 200 | 4250 | 111 ± 426 |
| Pseudo-nitzschia spp | 125 | 4420 | 303 ± 627 |
| Rhizosolenia spp. | 123 | 950 | 49 ± 110 |
| Pennate diatom (sp. 2, "spindle-like") | 116 | 130 | 18 ± 17 |
| Unid. centric diatoms | 100 | 240 | 23 ± 28 |
| Chaetoceros spp. (<20 μm) | 92 | 1918 | 135 ± 303 |
| Mastogloia rostrata | 87 | 240 | 23 ± 32 |
| Hemiaulus hauckii | 84 | 6713 | 318 ± 1104 |
| Planktoniella sol | 80 | 140 | 34 ± 31 |
| COCCOLITHOPHORES | |||
| Unid. coccolithophores (small, < 10 μm) | 406 | 48675 | 6577 ± 6795 |
| Unid. coccolithophores (large) | 401 | 1781 | 216 ± 207 |
| Discosphaera tubifera | 301 | 3014 | 299 ± 353 |
| Syracosphaera pulchra HET | 295 | 250 | 46 ± 42 |
| Umbellosphaera irregularis | 261 | 8631 | 686 ± 924 |
| Syracosphaera pulchra HOL | 212 | 310 | 48 ± 57 |
| Rhabdosphaera clavigera | 206 | 190 | 29 ± 26 |
| Helicosphaera carteri | 199 | 190 | 26 ± 28 |
| Calciosolenia brasiliensis | 196 | 2329 | 110 ± 271 |
| Ophiaster hydroideus | 185 | 3699 | 326 ± 589 |
| Calcidiscus leptoporus | 150 | 1644 | 124 ± 235 |
| Umbilicosphaera sibogae | 146 | 740 | 111 ± 168 |
| Calciosolenia murrayi | 133 | 7480 | 175 ± 705 |
| Coccolithophore (sp. 1, "Coronosphaera-like") | 133 | 280 | 23 ± 28 |
| Acanthoica quattrospina | 94 | 959 | 29 ± 105 |
| Coccolithophore (sp. 4, "dark", 11–15 μm) | 91 | 150 | 31 ± 30 |
| Algirosphaera robusta | 85 | 1781 | 143 ± 264 |
| Umbilicosphaera anulus | 80 | 4521 | 225 ± 626 |
| Michaelsarsia elegans | 74 | 685 | 34 ± 92 |
| Syracosphaera prolongata | 67 | 411 | 25 ± 52 |
| Calciopappus rigidus | 66 | 680 | 33 ± 83 |
| Oolithotus spp. | 60 | 1644 | 107 ± 235 |
| Syracosphaera spp. | 61 | 80 | 21 ± 15 |
| OTHER PHYTOPLANKTON | |||
| Cryptomonads | 121 | 1096 | 196 ± 206 |
| Dictyocha fibula | 160 | 480 | 34 ± 56 |
| Halosphaera viridis (phycoma) | 76 | 150 | 25 ± 25 |
| Colonial flagellate (sp. 1, colonies) | 120 | 190 | 27 ± 28 |
| Pterosperma moebii | 116 | 630 | 70 ± 110 |
| Trichodesmium sp. (filaments) | 71 | 1730 | 188 ± 339 |
| Unid. nanoflagellates (3–20 μm) | 406 | 168784 | 8025 ± 12123 |
| CILIATES | |||
| Ciliates ("naked", <30 μm) | 396 | 4760 | 159 ± 328 |
| Ciliates ("naked", > 30 μm) | 390 | 940 | 110 ± 107 |
| Strombidium spp. | 345 | 510 | 67 ± 70 |
| Tintinnids (large) | 355 | 200 | 41 ± 35 |
| Tintinnids (< 40 μm) | 117 | 200 | 17 ± 20 |
Unid. = Unidentified. Abundances in cells L-1, Max. = maximum, SD = standard deviation. Minimum abundances were almost always 10 cells L-1 (one cell in the whole chamber after settling 100 mL, or 10 cells in 1 L); the exceptions were unidentified dinoflagellates (large and small), coccolithophores and nanoflagellates, which presented minimum abundances ranging between 20 and 410 cells L-1. Nanoplankton was identified at 312 X. The less abundant microplankton forms were counted at 125 X, but identification was checked at 312 x when necessary.
* Formerly, genus Ceratium [30].