Table 2. Mean environmental parameters (± SE) at Bajo Rojo Reef in 10 m water depth during the three main seasonal periods.
| non-upwelling | upwelling | extreme upwelling | |
|---|---|---|---|
| Water column Bajo Rojo | nUPW | UPW | extUPW |
| Temperature [°C] | 27.3 ± 0.1 (134) | 23.5 ± 0.2 (124) | 18.8 ± 0.4 (15) |
| pH | 7.96 ± 0.02 (8) | 7.96 ± 0.08 (3) | 8.03 (1) |
| Salinity | 33.24 ± 0.22 (8) | 33.74 ± 0.31 (3) | 34.70 (1) |
| Dissolved O2 [mg L-1] | 5.77 ± 0.35 (8) | 5.88 ± 0.56 (3) | 5.61 (1) |
| Phosphate [μM] | 0.38 ± 0.05 (8) | 0.48 ± 0.04 (3) | 1.21 (1) |
| Ammonia [μM] | 0.57 ± 0.16 (8) | 1.36 ± 0.80 (3) | 0.47 (1) |
| Nitrate [μM] | 0.50 ± 0.23 (7) | 4.50 ± 3.13 (2) | 9.71 (1) |
| Chlorophyll a [μg L-1] | 1.06 ± 0.46 (7) | 1.92 ± 0.54 (2) | 7.71 (1) |
| Particulate N [μg L-1] | 35.68 ± 5.25 (7) | 67.99 ± 2.39 (2) | 89.45 (1) |
| Particulate organic C [μg L-1] | 267.98 ± 37.94 (7) | 441.97 ± 118.50 (2) | 658.01 (1) |
| Dissolved organic C [μM] | 121.79 ± 20.44 (6) | 160.52 ± 39.31 (2) | 141.71 (1) |
Variables were measured constantly (water temperature; daily averages), weekly for several hours (pH, salinity, dissolved O2; sampling day average) or weekly in triplicate (nutrients and particulate as well as dissolved organic matter; sampling day average). The number of replicates for each parameter and season is displayed in brackets.