Table 2 Characteristics of included lakes
| Â | Median | Min. | Max. |
|---|---|---|---|
Mean depth (m) | 2.1 | 0.7 | 13.5 |
Lake area (ha) | 37 | 1.2 | 3985 |
Retention time (days) | 220 | 1 | 3870 |
Total phosphorus concentration (pre-manipulation summer mean, ÎŒg/l) | 133 | 25 | 1195 |
Mean annual atmospheric temperature (°C) | 7.8 | 1.3 | 13.1 |