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Copper uptake by the marine mussel Mytilus edulis in the presence of fulvic acids
Author(s) -
SánchezMarín Paula,
Lorenzo J. Ignacio,
Mubiana Valentine K.,
Blust Ronny,
Beiras Ricardo
Publication year - 2012
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.1874
Subject(s) - mytilus , mussel , copper , environmental chemistry , chemistry , seawater , anodic stripping voltammetry , genetic algorithm , gill , fulvic acid , bivalvia , mollusca , ecology , humic acid , electrochemistry , fishery , biology , fish <actinopterygii> , fertilizer , organic chemistry , electrode
Copper uptake and accumulation by the marine mussel Mytilus edulis were studied at different Cu concentrations in chemically defined artificial seawater in the presence and absence of fulvic acids. Both short‐term uptake of Cu by excised mussel gills and Cu accumulation in whole mussels after 24 h of exposure decreased in the presence of fulvic acids compared with their absence at similar dissolved Cu concentrations. Calculations of Cu speciation based on previous measurements of labile Cu by anodic stripping voltammetry demonstrated that Cu uptake and accumulation depended on the concentration of labile Cu, in agreement with the free ion activity model. No evidence of a significant uptake of Cu–fulvic acid complexes was observed. Environ. Toxicol. Chem. 2012; 31: 1807–1813. © 2012 SETAC