Trace elements in the detoxifying and accumulating body parts of Mytilus galloprovincialis Lamark, 1819 (Crimea, Black Sea): human health risks and effect of the sampling site location

Abstract

The mussel M. galloprovincialis is one of the most popular species in world's mariculture and environment pollution bioindicators. Although this mollusk was in a focus of numerous publications, the detoxifying and accumulating role of some of its body parts was insu ciently studied. In the present work, using inductively coupled plasma mass spectrometry, the distribution of Cr, Co, Ni, Cu, Zn, As, Cd, Hg, Pb in soft tissues, byssus, and shell liquor of this bivalve was studied for the rst time as a function of sampling location in the Black Sea off southwestern Crimea. Multivariate analysis showed signi cant differences in the overall distribution of the elements among the body parts and sampling sites under consideration. Human health risks from the consumption of this mollusk were shown to be unlikely. Byssus of M. galloprovincialis was characterized as an ideal indicator of marine environment pollution with Ni, Cu, Pb, Сo, and Cr as it contained the highest contents of these elements among the body parts under study (Ni up to 91%, Cu and Pb up to 79%). For the rst time, the concentrations of trace elements were determined in the shell liquor and its role as the trace element excretion system was demonstrated. In the shell liquor, the largest share among the body parts was that of Hg (up to 71%). In soft tissues, Zn, Cd and As were in largest proportions among the body parts (63, 62, and 54%, respectively). The trace element contents in soft tissues of M. galloprovincialis decreased in the following order: Zn > Cu > As > Ni > Pb > Cd > Cr > Co > Hg.

Rare Earth Elements in Shells of Black Sea Molluscs: Anomalies and Biogeochemical Implications

“…Principal component analysis applied to standardized element contents in tissues of Black Sea organisms usually associates principal component 1 with the overall element contamination in the environment [75,118,119]. As this method seeks to maximize the dispersion along principal coordinates, it can discriminate between samples with sufficiently different element abundances.…”

Elements in Soft Tissues of the Young Mediterranean Mussel Mytilus galloprovincialis Lam. 1819 Collected in Sevastopol Bay (Crimea, Black Sea): Effects of Age, Sex, Location, and Principal Morphometric Parameters

“… a: this work; b: [ 36 ]; c: [ 35 ]; d: [ 79 ]; e: [ 37 ], f: [ 34 ], g: [ 38 ]; h [ 26 ]; i: [ 27 ]; j: [ 28 ]; k: [ 25 ]; l: [ 42 ]; m: [ 41 ]; n: [ 31 ]; o: [ 40 ]; p: [ 30 ]; q: [ 29 ]; r: [ 50 ]; *: transformed from wet to dry weight basis using the factor 6.29 [ 80 ]; †: measured semi-quantitatively. …”

“…The contents of a number of elements (K, Al, Co, Ni, Zn, As, and Sn) were approximately at median levels. [36]; c: [35]; d: [79]; e: [37], f: [34], g: [38]; h [26]; i: [27]; j: [28]; k: [25]; l: [42]; m: [41]; n: [31]; o: [40]; p: [30]; q: [29]; r: [50]; *: transformed from wet to dry weight basis using the factor 6.29 [80]; †: measured semi-quantitatively.…”

“…The elements that are more abundant in mussels from the more seaward Station 1 are mainly the seawater solutes (Na, Mg, As, Br, I). Th 0.16 0.13 0.08 U 0.15 0.07 0.2 a: this work; b: [36]; c: [35]; d: [79]; e: [37], f: [34], g: [38]; h [26]; i: [27]; j: [28]; k: [25]; l: [42]; m: [41]; n: [31]; o: [40]; p: [30]; q: [29]; r: [50]; *: transformed from wet to dry weight basis using the factor 6.29 [80]; †: measured semi-quantitatively.…”