Chomoutovské jezero
Chomoutovské jezero is a quarry pond in the Moravian okres Olomouc in the east of the Czech Republic . It was created in the late 1960s. It has been under nature protection since 1993 and has developed into a retreat and breeding area for water birds. A total of 31 specially protected bird species nest here.
The lake is located on the right bank of the Oskava , 10 kilometers north of the city of Olomouc and 2.5 kilometers north of the confluence of the Oskava in the March , at a height of 216 mnm. It is composed of two bodies of water, the large and the small lake , and is a total of 90 hectares. The water area accounts for 71.9 hectares, and two larger and one small island were left behind during the dredging process. The average water depth is 2.1 meters. The basin has no natural inflow or outflow, but is only fed by groundwater .
The quarry pond was created by mining gravel sand . Even before the Second World War, building materials were extracted here for local needs. The systematic, intensive mining took place in the years 1952–1968. The pit then filled with groundwater. From 1974 the lake was used to produce drinking water . The water quality deteriorated so much that the extraction was stopped in 1990. The water areas and shoreline areas have been part of the 106 hectare Chomoutovské jezero nature reserve since 1993 . The reserve is part of the Litovelské Pomoraví Protected Landscape Area and is protected as an important wetland area under the Ramsar Convention .
The banks are overgrown with a strip of reeds . In addition to the usual plants, the Canadian goldenrod and the ash maple grow in the reserve . The black- headed gull and the black-headed gull (4,000–5,000 pairs) regularly breed on the islands . Often, cormorants , ducks , herons , grebes and mute swans found. For example , white- tailed eagles , coots , herons , bitterns , railings , sandpipers and kingfishers were observed . The European beaver , who disappeared in Moravia since 1730, was settled here from 1991–1992 , whose work has already visibly redesigned the bank areas. Fish entered the lake in 1997 during a flood. Investigations in 2001-2003 found 15 species; the largest populations had developed roach , rudd , gable and perch .
Web links
- Marek Navrátil and Aloisie Poulíčková: Fytoplankton štěrkoviště Chomoutov u Olomouce. Czech Phycology, Olomouc 2001 (pdf; 495 kB)
- dodinart.ic.cz - description of bird species
- Black-headed gull breeding sites at the lake - pictures
- Beavers in Moravia
Coordinates: 49 ° 39 ′ 12 ″ N , 17 ° 14 ′ 28 ″ E