A natural lake situated near to the Danube river, and supplied by the Desnatui and Baboia rivers. There is limited aquatic vegetation; mudflats occur in neighbouring marshy areas. The lake is managed for pisciculture.
This is an important breeding and stop-over site for large numbers of waterbirds; also utilized by non-breeding waterbirds as a feeding area. Species of global conservation concern that do not meet IBA criteria: Branta ruficollis (2-20 wintering birds), Aythya nyroca (10-15 passage birds) and Haliaeetus albicilla (1-2 passage birds).
BirdLife International (2019) Important Bird Areas factsheet: Bistreţ. Downloaded from http://www.birdlife.org on 19/08/2019.