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Lake Pamvotis

by Eleni Magka

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Eleni Magka-Music School of Ioannina/Greece
Lake Pamvotida or Pamvotis (ancient name Pamvotis meaning "she who feeds all") commonly also Lake of Ioannina is the largest lake of Epirus and it is located in the central part of Ioannina regional unit.
Lake Pamvotis is about 7 million years old and that makes it one of the oldest lakes internationally.
Lake Pamvotida is situated at 470 m elevation, south of the Mitsikeli mountains and is formed by the waters of three main springs (Drabadovas, Sendenikos and Kryas). It is fed by several small rivers. It has no surface outflow, but it is drained through karstic sinkholes towards the rivers Arachthos, Louros and Kalamas.
In 1960 a tunnel and ditch were constructed that drain from the northern end of the lake to the riverKalamas The small inhabited Ioannina island, where Ali Pasha was hiding during the last days of his reign, is situated near the northern shore.
Urbanisation and pollution are threatening the lake ecosystem, home to small mammals, waterbirds and a rich fish and crustacean fauna. 
The State General Laboratory and the Department of Hygiene and Epidemiology, University of Ioannina, Ioannina Region notified the results of analysis of samples from lake Pamvotis in order to ascertain
the reasons that led to the death of a host of fish. As revealed by the
results, the lake is impaired by pollutants from sewage, which significantly
exceed permissible limits. According to what was said by the Head of State
General Laboratory Department of Ioannina, the effluent is the same quality asthose that led to biological treatment, with the difference being that these were channeled directly to the lake.
(by Anastasis, 7th grade)

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