TABLE 2.
Summary of the seasonal characteristics of the phytoplankton community in coastal waters of the eastern English Channela
| Median in entire dataset | January-March | April-July | September-December | |
|---|---|---|---|---|
| Dominant phytoplankton (morphological and metabarcoding) | Thalassiosira sp. |
Phaeocystis globosa, Chaetoceros socialis, Leptocilyndrus danicus, Pseudonitzschia pungens, Prorocentrum minimum, PicoNano |
Thalasiossira sp., Ditylum sp., piconanophytoplankton | |
| PAR (E m−2 d−1) | 60.8 | Low (35.5) | High (84.9) | Low (41.7) |
| T (°C) | 15 | Low (7.7) | Moderate (15.2) | Moderate (16.5) |
| NO2+NO3 | 1.0 | High (4.3) | Low (0.5) | Moderate (1.3) |
| Si(OH)4 | 1.3 | High (2.9) | Low (0.8) | Moderate (1.8) |
| PO4 | 0.2 | High (0.4) | Low (0.1) | Moderate (0.2) |
| Wind stress (Pa) | 0.04 | High (0.1) | Moderate (0.04) | High (0.1) |
| Rainfall (Kg m2) | 1.3 | Moderate (1.1) | Low (0.8) | High (2.0) |
| Richness | 272 | Low (213) | Low (218) | High (361) |
| Taxonomic alpha diversity (Shannon) | 3.4 | High (3.5) | Low (2.5) | High (3.8) |
| Ecological processes (Alpha diversity) | 1.4 | Environmental filtering (3.1) | Environmental filtering (0.8) | Environmental filtering (1.5) |
| Ecological processes (Beta diversity) | Homogeneous selection | Drift | Drift+Homogeneous selection |
a
The median values are given in parentheses. The relative terms “High,” “Moderate,” and “Low” refer to the median of the entire data set.