Among the oldest lakes in the world / Lake Ohrid and Lake Prespa

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Lake Ohrid and Lake Prespa, two of the oldest lakes in Europe, lie in a mountainous area along the borders of North Macedonia, Albania and Greece. Lakes have existed for at least 1 million years and possibly longer.

Most of the world’s millions of lakes are less than 18,000 years old and were formed when glaciers melted at the end of the last Ice Age.

Ohrid is the largest and deepest of the two, with an average depth of 155 meters. Prespa has an average depth of 14 meters. Geologists classify 30 lakes in the world as the oldest, Ohrid and Prespa belong to this category.

Most of the water in Lake Ohrid comes from underwater sources, writes NASA. In a recent study, based on nearly four decades of Landsat observations, scientists reported that Lake Prespa lost 7 percent of its surface area and half of its volume between 1984 and 2020, most likely due to increased sediment withdrawal. water for agriculture.

Lake Ohrid is home to 200 species found nowhere else, including unusual snails, ducks and trout.

Lake Ohrid is protected by UNESCO and in some cases has been called the “European Galapagos” or a museum of living fossils because of its extraordinary biodiversity. In 2010, scientists of the International Astronomical Union gave the name Ohrid to a lake on Titan.

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