The content of some trace elements in the tissues of the annual and two-year coastal scallop of the Severnaya Bay of Peter the Great Gulf (Sea of Japan). E.A. ZHAD’KO, N.I. STEBLEVSKAYA, N.V. POLYAKOVA, S.V. CHUSOVITINA

Abstract

The content of some trace elements in the tissues of the annual and two-year coastal scallop of the Severnaya Bay of Peter the Great Gulf (Sea of Japan). E.A. ZHAD’KO (Far East State Technical Fishery University, Vladivostok), *N.I. STEBLEVSKAYA (Institute of Chemistry, FEB RAS, Vladivostok, Far East State Technical Fishery University, Vladivostok), N.V. POLYAKOVA (Institute of Chemistry, FEB RAS, Vladivostok), S.V. CHUSOVITINA (Far East State Technical Fishery University, Vladivostok). *E-mail: steblevskaya@ich.dvo.ru

The content and distribution of some microelements in the digestive gland, gills and muscle of the one-year and two-year-old Japanese scallops (Mizuhopecten yessoensis), grown in the maricultural farm of the Severnaya Bay in 2015–2016 are studied. In the tissues of mollusks of both age groups iron, bromine and zinc are predominated. In the digestive gland of mollusks, the iron content is many times higher than that of other metals, gills are leading in terms of zinc content. The muscle of the scallops is much inferior to the gills and digestive gland according to the content of trace elements. The concentration of toxic lead, cadmium, arsenic and mercury in the tissues of the mollusks does not exceed the maximum possible concentration, with the exception of the digestive gland, in which the concentration of cadmium is above the maximum possible concentration.