On the one hand, shifts from endemic to common European species, which are better adapted to higher nutrient conditions, have already been observed close to polluted inflows. The stability due to this salinity gradient allows complete convective mixing events only roughly once every 7 years.While Lake Ohrid is special as such, by far the most spectacular quality is its impressive endemism. Tirana, Albania and Ohrid, Macedonia)Deutsche Gesellschaft für Internationale Zusammenarbeit (2015) I International Union for the Conservation of Nature (IUCN) (2017) S. Stankovic, "The Balkan Lake Ohrid and its living world", Monographiae Biologicae, Vol. Over 20% of the lake’s water comes from nearby Lake Prespa, about 10 km (6.2 mi) to the southeast and at 150 m higher altitude than Lake Ohrid. Lake Ohrid, is also the namesake of Ohrid Lacus, a hydrocarbon lake on the Saturnian moon Titan. Lake Ohrid is one of those really special places We loved Lake Ohrid - it's a really special place that is drop-dead gorgeous, has lots to see and do nearby, and has a good vibe. 2010 Evolution of ancient Lake Ohrid: a tectonic perspective. ... Lake Ohrid, on the border of … Frogley, R.C. Research 2006, 32: 158–179)A. Matzinger, M. Jordanoski, E. Veljanoska-Sarafiloska, M. Sturm, B. Müller, A. Wüest, "Is Lake Prespa jeopardizing the ecosystem of ancient Lake Ohrid?"
While most of the endemic fish species are non-migratory, the European eelspawns in the distant Sargasso Sea while its offspring return to the lake. First steps in that direction have been taken by extending and improving the existing sewage system in Macedonia in the framework of a GEF (Global Environment Facility) program.
Spirkovski, Z. Krstanovski, L. Selfo, M. Sanxhaku, V.I. ... Flat spots on Saturn’s moon Titan may be the floors of ancient lake beds By Lisa Grossman June 16, 2020.
However it may take more than a decade to see the effects of today’s pollution level in the lake, because of its long water residence time.
The water leaves Lake Prespa trickling through underground watercourses in the karstic landscape, where it is joined by mountain range precipitation and eventually emerges in numerous springs along the eastern shore and below the water surface of Lake Ohrid. Particular threats are the building of tourist facilities directly at the shore, destroying of reed belts to gain agricultural land and intense pollution close to the mouth of tributaries. It is 30.4 km long by 14.8 km wide at its maximum extent with a shoreline length of 87.53 km, shared between Macedonia (56.02 km) and Albania (31.51 km). The water leaves Lake Ohrid by evaporation (~40%) and through its only outlet, the Black Drin River, which flows in a northerly direction into Albania and thus to the Adriatic Sea. Moreover the Ohrid-Korca graben to the south of the lake is still tectonically active and might compensate sedimentation by subduction. (Hydrobiologia 2006, 553: 89–109)S. D. Hadzisce, "The mixo-phenomenon of Lake Ohrid in the course of the years 1941/42-1964/65 (in German)" (Proceedings of the International Association of Theoretical and Applied Limnology 1966, 16: 134–138)A. Matzinger, M. Schmid, E. Veljanoska-Sarafiloska, S. Patceva, D. Guseska, B. Wagner, B. Müller, M. Sturm, A. Wüest, M. Watzin, V. Puka, T. B. Naumoski (eds), "Lake Ohrid and its watershed, state of the environment report" (Lake Ohrid Conservation Project.
In the 1980s more than 200’000 national and international tourists went on a literal pilgrimage to the Macedonian lake side every year.
Ohrid Lake Being the largest and most beautiful out of Macedonia’s three tectonic lakes, Lake Ohrid is about 30 kilometers (18 miles) long and round 288 meters (945 feet) deep. Moreover reed belts have great importance for water birds.Commercial fish yield, i.e. Unfortunately, like in many European lakes, it is very unlikely today that eels can reach Lake Ohrid naturally and return to the Sargasso Sea, as a result of several hydropower dams on the Black Drin and the Drin River, both in Macedonia and Albania. Biogeosciences, 7, 3377–3386, www.biogeosciences.net/7/3377/2010/doi:10.5194/bg-7-3377-2010/Z. The most probable reason is overfishing and possibly destruction of spawning grounds. The population in the catchment has increased greatly by 100,000 people in the last half century, putting the lake’s fragile ecosystem under pressure. As a reaction to the situation, fishing has been banned for the past two years, to help the fish population recover and to allow scientists collect further data. Apart from Earth, Titan is the only body in the solar system known to possess surface lakes and sea… The reason lies very probably in the ideal adaptation of the endemic species to the specific conditions in the lake, such as low nutrient availability, good living conditions in greater depth thanks to high water transparency and oxygen content, as well as subaquatic spring inflows supplying cool and oxygen-rich water. Even though many of the above visitors are staying for a weekend only, tourism makes an important share of local economy (~1 visitor/inhabitant).Shore habitats are under particular pressure from human activities. Three lakes on Saturn’s moon Titan have pulled a vanishing act, a study finds.