Table 1. Mean environmental parameters (± SE) at Matapalo Reef in 5 m water depth during the three main seasonal periods.
| non-upwelling | upwelling | extreme upwelling | |
|---|---|---|---|
| Water column Matapalo | nUPW | UPW | extUPW |
| Temperature [°C] | 28.56 ± 0.18 (26) | 28.02 ± 0.25 (17) | 23.59 ± 0.72 (4) |
| pH | 8.03 ± 0.01 (26) | 8.08 ± 0.01 (17) | 8.28 ± 0.01 (4) |
| Salinity | 32.56 ± 0.18 (26) | 32.94 ± 0.26 (17) | 33.80 ± 0.14 (4) |
| Dissolved O2 [mg L-1] | 7.07 ± 0.14 (26) | 7.19 ± 0.08 (17) | 6.27 ± 0.48 (4) |
| Phosphate [μM] | 0.28 ± 0.02 (26) | 0.21 ± 0.03 (17) | 0.77 ± 0.20 (4) |
| Ammonia [μM] | 0.60 ± 0.05 (26) | 0.66 ± 0.10 (17) | 1.39 ± 0.41 (4) |
| Nitrate [μM] | 0.50 ± 0.06 (25) | 0.36 ± 0.11 (14) | 3.55 ± 1.21 (4) |
| Chlorophyll a [μg L-1] | 0.59 ± 0.08 (19) | 0.69 ± 0.12 (14) | 1.20 ± 0.50 (4) |
| Particulate N [μg L-1] | 27.22 ± 2.54 (20) | 43.33 ± 8.86 (14) | 57.48 ± 12.26 (4) |
| Particulate organic C [μg L-1] | 226.88 ± 28.53 (20) | 300.12 ± 52.59 (14) | 327.68 ± 51.62 (4) |
| Dissolved organic C [μM] | 110.98 ± 7.25 (18) | 195.72 ± 12.69 (13) | 137.31 ± 11.33 (4) |
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.