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Organic compounds temporal trends at some invertebrate species from the Balearics, Western Mediterranean

AuthorsDeudero Company, María de la Salud ; Box Centeno, Antonio ; March, David ; Valencia, José María; Grau, Antoni Maria; Tintoré, Joaquín ; Calvo Bermúdez, Mónica; Caixach Gamisans, Josep
KeywordsOrganic compounds
Mytilus galloprovincialis
Chamelea gallina
Lithophaga lithophaga
Balearic Islands
Issue Date23-May-2007
CitationChemosphere 68(9): 1650-1659 (2007)
AbstractConcentrations of persistent organic pollutants (POPs) such as hexachlorobenzene (HCB), dichlore diphenyl trichloretane (DDT), polychlorinated biphenyls (PCBs), and gamma-exachlorocyclohexane (γ-HCH or lindane) were determined in tissue of marine benthic invertebrates such as Mytilus galloprovincialis, Chamelea gallina, Venus verrucosa, Lithophaga lithophaga and Paracentrotus lividus. Species were selected due to their habitat, trophic level, feeding behaviour and their consumption. Invertebrate species were systematically sampled from December 1996 to December 2005 from several sites along the Balearic Islands. The highest concentrations of PCBs (785 ng/g lipid) were found in M. galloprovincialis while the lowest concentrations were found in the sea-urchin P. lividus (193 ng/g lipid). Among the 7 PCB quantified congeners the higher values are mainly obtained for CB138 and CB153. All bivalves presented higher PCBs contents than the sea-urchin P. lividus are possibly linked with the bioaccumulation process of POPs throughout the food web and to differential detoxifying mechanisms. The concentration of ΣDDT exceeds that of HCB and c-HCH at all species and sampling stations. DDT concentrations ranged from 0.4 ng/g ww at the bivalve C. gallina in 2002, to values of 15.8 ng/g ww at the bivalve L. lithophaga in 1998. The values obtained for the organic compounds (HCH, HCB, PCBs, DDT) depend upon the place and year of sampling and are compared to values found by other authors for the mussel M. galloprovincialis in other Mediterranean areas. c-HCH and HCB were found in lower concentrations than the other POPs.
Description10 pages, 4 figures.-- PMID: 17524450 [PubMed].-- Printed version published Aug 2007.
Publisher version (URL)http://dx.doi.org/10.1016/j.chemosphere.2007.03.070
Appears in Collections:(IMEDEA) Artículos
(IDAEA) Artículos
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