Worldwide only very few freshwater lakes exist that are characterised by a long geological history, often leading to an outstanding degree of endemic biodiversity. Examples include Lake Baikal located in Siberia, Lake Titicaca in South America, and lakes Tanganyika and Malawi in the East African Rift. Most of such “old” lakes have a tectonic origin and are located in regions, wich are still tectonically active. Two famous representatives of such lakes in Europe are the small “sister lakes” Prespa and Ohrid on the Balkan Peninsula. Lake Ohrid has today a surface area of 358 km2, a maximum water depth of 289 m, a mean water depth of 155 m, and a volume of 55 km3 (Matzinger et al., 2006). The surface area of neighbouring Lake Prespa is only 254 km2, its maximum and mean water depths are 58 m and 14 m, respectively, and its volume is 3.6 km3 (Matzinger et al., 2006; Albrecht and Wilke, 2008). The shortest straight line distance between the two lakes is 9 km and Lake Prespa (altitude 849 m a.s.l.) is connected hydrologically with Lake Ohrid (altitude 693 m a.s.l.) via underground karstic channels.
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- Publication year
2011
- Venue
Biogeosciences
- Publication date
2011-04-21
- Fields of study
Environmental Science, Geology
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Semantic Scholar
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