“…On the other hand, the zebra mussel can enhance aquatic ecosystems. It is an additional source of food for fish and marine birds, and aggregations of mussels can be used for water quality management (Mikheev, 1967;L′vova-Katchanova, 1971;Reeders & bij de Vaate, 1990;Reeders et al, 1993;Smit et al, 1993;Anon., 1994;Antsulevich, 1994;Antsulevich et al, 2000).…”