Table 1.
Limnological characteristics of the study sites.
| Lake | Country | Latitude (N) | Longitude (E) | Max. depth (m) | Surface area (km2) | Water volume (106m3) | Surface elevation (m) | Water retention time (y) | Trophic state | Sampling date |
|---|---|---|---|---|---|---|---|---|---|---|
| Zurich | Switzerland | 47°15′ | 8°41′ | 136 | 88 | 4300 | 406 | 1.4 | Mesotrophic | 2015.1.7–2015.12.16 (Biweekly) |
| Maggiore | Italy/ Switzerland | 45°48′ | 8°39′ | 370 | 213 | 37900 | 193 | 4.1 | Oligo-mesotrophic | 2011.3.8–2012.1.12 (Once or twice a month) |
| Como | Italy | 46°00′ | 9°15′ | 410 | 146 | 22500 | 198 | 4.5 | Mesotrophic | 2011.7.12 |
| Iseo | Italy | 45°44′ | 10°04′ | 251 | 62 | 7600 | 186 | 4.1 | Meso-eutrophic | 2011.7.11 |
| Garda | Italy | 45°42′ | 10°43′ | 350 | 368 | 48900 | 65 | 26.6 | Oligo-mesotrophic | 2011.9.26 |
| Thun | Switzerland | 46°41′ | 7°43′ | 217 | 48 | 6500 | 558 | 1.8 | Oligotrophic | 2010.7.12 |
| Mondsee | Austria | 47°50′ | 13°20′ | 68 | 14 | 520 | 481 | 1.8 | Mesotrophic | 2016.9.14 |