Bioaccumulation of metals (Cd, Cu, Zn) by the marine bivalves M. galloprovincialis, P. radiata, V. verrucosa and C. chione in Mediterranean coastal microenvironments: association with metal bioavailability

Sakellari, A; Karavoltsos, S; Theodorou, D; Dassenakis, M; Scoullos, M

dc.contributor.author	Sakellari, A	en
dc.contributor.author	Karavoltsos, S	en
dc.contributor.author	Theodorou, D	en
dc.contributor.author	Dassenakis, M	en
dc.contributor.author	Scoullos, M	en
dc.date.accessioned	2014-03-01T11:46:39Z
dc.date.available	2014-03-01T11:46:39Z
dc.date.issued	2012	en
dc.identifier.issn	01676369	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/38008
dc.subject	Bioavailability	en
dc.subject	Bivalves	en
dc.subject	DGT	en
dc.subject	Metals	en
dc.subject	Sediments	en
dc.subject	SPM	en
dc.title	Bioaccumulation of metals (Cd, Cu, Zn) by the marine bivalves M. galloprovincialis, P. radiata, V. verrucosa and C. chione in Mediterranean coastal microenvironments: association with metal bioavailability	en
heal.type	other	en
heal.identifier.primary	10.1007/s10661-012-2799-2	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s10661-012-2799-2	en
heal.publicationDate	2012	en
heal.abstract	The concentrations of Cd, Cu and Zn in both the whole soft tissue and separate organs (gills, mantle, muscle and digestive gland) of wild bivalves (Mytilus galloprovincialis, Pinctada radiata, Venus verrucosa and Callista chione) from three different coastal microenvironments of Greece were monitored from 2003 to 2004. In parallel, by employing appropriate analytical protocols for metal partitioning, the labile fraction of the metals was determined in the dissolved phase, suspended particulate matter and sediments. Differences in the metal levels were detected both among the study areas as well as among the bivalves examined. Significant bioaccumulation was demonstrated regarding Zn in M. galloprovincialis specimens from the highly industrialized Gulf of Elefsis and Cd in P. radiata and V. verrucosa from the Maliakos Gulf, which is influenced by extended agricultural activity occurring at the neighbouring area and a river outflow. Data of the metal levels in the various environmental phases were correlated with their concentrations in bivalves' tissues. The clear relationships obtained in many cases among the labile metal concentrations and the bioaccumulated concentrations in bivalves point out that the labile fraction of a metal is the most bioavailable. The lack of positive correlation for C. chione confirms the occurrence of effective mechanisms of internal regulation of metal concentrations. © 2012 Springer Science+Business Media B.V.	en
heal.journalName	Environmental Monitoring and Assessment	en
dc.identifier.doi	10.1007/s10661-012-2799-2	en
dc.identifier.spage	1	en
dc.identifier.epage	13	en