On invasion of Dreissena bugensis (Bivalvia, Dreissenidae) in the Ucha Reservoir (Moscow oblast) and the Moscow River [Russian]

摘要

Dreissena bugensis was found for the first time in the benthos of the Ucha Reservoir in 2002. The age of the mollusks was 2+ y, and the maximum shell length was 28 mm. The plankton Dreissena bugensis larvae appear to penetrate to the Ucha Reservoir in 2000 with water from the Pestovo Reservoir. In the Moscow River within the city of Moscow, D. bugensis was found in 2003. The age of the mollusks was 2+ y, and the maximum shell length was 24 mm.