Abstract

The rock mussel (Mytilus galloprovincialis Lam.) was used as a biomonitor species for metal pollution on the coast of Galiza, NW Spain. The measured concentrations in the soft tissues and in the nacreous shell were contrasted with those from the HCl and HNO3 leached fractions of sediment samples collected from the mussels' environment. The nickel and lead concentrations in the nacreous shell and the zinc and lead concentrations in the soft tissues were correlated with the sediment metal levels. The results suggest that Mytilus galloprovincialis can be used as a particularly appropriate biomonitor for lead pollution, with the nacreous shell seemingly producing better results than the tissue.

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