Doklady Earth Sciences. Vol. 484, No. 1, Pages 76-78, 2019

Corresponding Member of the RAS V. V. Bogatov^a^,*, L. A. Prozorova^a, E. N. Chernova^b, E. V. Lysenko^b, Q. Ngo^c, T. Tran^c, and S. Hoang^c
Translated by Dm. Voroshchuk

^aFederal Scientific Center of East Asian Terrestrial Biodiversity, Far East Branch, Russian Academy of Sciences, Vladivostok, 690091 Russia

^bPacific Institute of Geography, Far East Branch, Russian Academy of Sciences, Vladivostok, 690041 Russia

^cInstitute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam

Abstract—The concentrations of seven heavy metals (HMs) in tissues of bivalve mollusks of the families Unionidae (genera Ensidens, Scabies, Kunashiria) and Cyrenidae (genus Corbicula) and from four natural lakes located on the eastern slope of Sikhote Alin (Primorskii krai, Russian Far East) the Mekong River delta (Vietnam) were determined. It was established that the HM concentrations in the bivalve mollusks studied, inhabiting unpolluted water reservoirs, are specific for every family and do not depend on the geographical positions of the lakes. They decrease in the following order: Mn > Fe > Zn > Cu > Ni > Cd > Pb for Unionidae, and Fe > Zn > Cu > Mn > Ni ≥ Cd > Pb for Cyrenidae (Corbicula). It is likely that deviations from the revealed sequence are due to anthropogenic pollution of lakes with some metals or the occurrence of a natural geological anomaly.

Bioaccumulation of Heavy Metals in Soft Tissues of Bivalve Mollusks from Natural Lakes in Eastern Sikhote Alin (Russia) and the Mekong Delta (Vietnam)