The lake in background seen from Gürpınar at Marmara Sea
|Catchment area||622 km2 (240 sq mi)|
|Max. length||7 km (4.3 mi)|
|Max. width||2 km (1.2 mi)|
|Surface area||28.47 km2 (10.99 sq mi)|
|Max. depth||8.6 m (28 ft)|
|Water volume||16,161 hm3 (3.877 cu mi)|
Lake Büyükçekmece (Turkish: Büyükçekmece Gölü) is a liman, formed at the point, where the river Karasudere flows into the Marmara Sea. Located in the south of Çatalca district west of Istanbul, Turkey, it is used as a freshwater reservoir.
The lake's bar was reinforced in 1988 by a dam. The area of the lake is 28.47 km2 (10.99 sq mi), it is 7 km (4.3 mi) long and 2 km (1.2 mi) wide. The maximum depth is 8.6 m (28 ft) following deepening works carried out by the State Hydraulic Works.
The fluvial lake developed as the flow of Karasudere, coming down from Çatalca region, was blocked by the sandbank it created. A reedy, light salty water lake exists between the Büyükçekmece Dam and the Marmara Sea. Another lake of liman type, the Küçükçekmece Lake, is located around 12 km (7.5 mi) east of Büyükçekmece Lake.
The number of fish species known in the lake has decreased from 30 in the past to 15 nowadays.
A historical, 635 m (2,083 ft) long and 7.17 m (23.5 ft) wide multiple arch bridge, named after the Ottoman architect Mimar Sinan (1489-1588), spans the narrow opening at the bar connecting the lake to the sea.
At the northern shore of the lake, Istanbul Hezarfen Airfield is situated on a peninsula.
Important Bird Area
The lake, which is in unprotected status, was declared by BirdLife International as an Important Bird Area in 1989 for its waterfowl species of international character and species, which are threatened.
- "Büyükçekmece Barajı" (in Turkish). DSİ. Retrieved January 11, 2009.
- "Büyükçekmece Gölü" (in Turkish). Environment and Forest Ministry. Retrieved January 11, 2009.[dead link]
- "Büyükçekmece Hakkında Herşey" (in Turkish). Büyükçekmece Net. Retrieved January 11, 2009.
- "Important Bird Areas In Turkey: Unprotected And Under Threat æauthors=Grimmett, R. F. A. & M. Kasparek, A. Kılıç, A. Ertan I". Retrieved 2014-07-13.
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