| Northern site | Spring | Summer | Autumn | Winter | ||
| Bottom depth (m) | 15 | 15 | 15 | 15 | ||
| Temperature (˚C) | 19.1 | 23.9 | 19.2 | 13.7 | ||
| Salinity (PSU) | 38.5 | 39.4 | 39.6 | 39.4 | ||
| Chl. a (>5 μm; mg∙m−3) | 0.08 | 0.12 | 0.07 | 0.05 | ||
| Chl. a (<5 μm; mg∙m−3) | 0.20 | 0.52 | 0.27 | 0.27 | ||
| NOx (μM) | bd | 0.16 | bd | bd | ||
| NH3 (μM) | bd | 0.13 | 0.27 | bd | ||
| PO4 (μM) | bd | bd | bd | bd | ||
| SiO2 (μM) | 1.32 | 1.25 | 1.04 | 0.66 | ||
| Middle site | Spring | Summer | Autumn | Winter | ||
| Bottom depth (m) | 25 | 25 | 25 | 25 | ||
| Temperature (˚C) | 18.1 | 23.2 | 18.6 | 13.8 | ||
| Salinity (PSU) | 37.7 | 38.5 | 37.9 | 37.9 | ||
| Chl. a (>5 μm; mg∙m−3) | 0.03 | 0.04 | 0.07 | 0.03 | ||
| Chl. a (<5 μm; mg∙m−3) | 0.18 | 0.27 | 0.39 | 0.19 | ||
| NOx (μM) | bd | 0.08 | bd | 0.28 | ||
| NH3 (μM) | 0.35 | 0.14 | 0.23 | 0.14 | ||
| PO4 (μM) | bd | bd | bd | bd | ||
| SiO2 (μM) | 0.45 | 1.07 | 0.46 | 1.12 | ||
| Southern site | Spring | Summer | Autumn | Winter | ||
| Bottom depth (m) | 45 | 45 | 45 | 45 | ||
| Temperature (˚C) | 16.5 | 21.5 | 18.6 | 15.3 | ||
| Salinity (PSU) | 36.2 | 36.8 | 36.8 | 35.9 | ||
| Chl. a (>5 μm; mg∙m−3) | 0.03 | 0.02 | 0.05 | 0.03 | ||
| Chl. a (<5 μm; mg∙m−3) | 0.15 | 0.19 | 0.35 | 0.13 | ||
| NOx (μM) | bd | bd | bd | bd | ||
| NH3 (μM) | 0.11 | bd | 0.20 | bd | ||
| PO4 (μM) | bd | bd | bd | 0.03 | ||
| SiO2 (μM) | 0.59 | 0.59 | 0.44 | 0.72 | ||