title: Response of the hairy mussel Trichomya hirsuta to sediment-metal contamination in the presence of a bioturbator.
abstract: The accumulation of metals in tissue compartments of bivalve biomonitors is expected to reflect the phases in which metals are most bioavailable. In concurrent field and laboratory experiments we measured Zn, Cd and Pb concentrations in the gills and digestive glands of mussels exposed to sediments from Lake Macquarie in NSW, Australia. Mussels in the laboratory were also exposed to the bioturbating gastropod Batillaria australis. Zn, Cd and Pb concentrations in gills and digestive glands of mussels from both experiments were accumulated in proportion with levels of metal contamination in the sediments. An interaction in the field between site and tissue type was found for Cd and Pb suggesting variation in the phases in which metals are most bioavailable. No effect of bioturbation on metal accumulation in the bivalve was detected and we conclude that it is unlikely to be a significant factor in metal uptake when these species interact.
authors.affiliation: School of Biological Sciences, University of Wollongong, NSW 2522, Australia.
authors.forename: L K
authors.initials: LK
authors.lastname: Lopez
authors.affiliation: Institut National de La Recherche Scientifique, INRS-Centre Eau Terre Environnement, 490 de la Couronne, Quebec, QC G1K 9A9, Canada.
authors.forename: P
authors.initials: P
authors.lastname: Couture
authors.affiliation: Ecochemistry Laboratory, Institute for Applied Ecology, Health, Design and Science, University of Canberra, Bruce, ACT 2601, Australia.
authors.forename: W A
authors.initials: WA
authors.lastname: Maher
authors.affiliation: Ecochemistry Laboratory, Institute for Applied Ecology, Health, Design and Science, University of Canberra, Bruce, ACT 2601, Australia.
authors.forename: F
authors.initials: F
authors.lastname: Krikowa
authors.affiliation: School of Chemistry, University of Wollongong, NSW 2522, Australia.
authors.forename: D F
authors.initials: DF
authors.lastname: Jolley
authors.affiliation: School of Biological Sciences, University of Wollongong, NSW 2522, Australia.
authors.forename: A R
authors.initials: AR
authors.lastname: Davis
mesh_terms: D000818:Animals; D001315:Australia; D001682:Biological Availability; D041981:Gastrointestinal Tract / Q000737:chemistry / Q000187:drug effects; D019015:Geologic Sediments / Q000737:chemistry*; D005880:Gills / Q000737:chemistry / Q000187:drug effects; D060106:Lakes; D008670:Metals / Q000032:analysis / Q000493:pharmacokinetics / Q000633:toxicity*; D049879:Mytilidae / Q000187:drug effects*; D014018:Tissue Distribution; D014874:Water Pollutants, Chemical / Q000493:pharmacokinetics / Q000633:toxicity*
chemical_list: D008670:Metals; D014874:Water Pollutants, Chemical
keywords: Bivalve; Cadmium; Gastropod; Lead; Metal gradient; Zinc