EN
The history of the black cormorant, Phalacrocorax carbo sinensis (L.), at Lake Dobskie dates to 1964, and by 2008 the colony numbered 764 nests. Breeding success is 2.1 indiv./nest. Samples were collected weekly from 28.03.2008 to 22.08.2008. This material comprised more than 700 pellets and 3,104 regurgitated fish, which were used to identify the composition of the cormorant diet. Based on the regurgitated fish collected, it was determined that the cormorant diet included roach (51.5%), tench (13.0%), pike (9.6%), common and white bream (9.2%), perch (8.0%), and bleak (4.2%). The total weight of the prey taken by the colony studied in 2008 was 188 tons of fish.