Laboratory and field studies of the accumulation of inorganic mercury by the mussel Mytilus edulis (L.) |
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| Institution: | 1. Key Laboratory of Ecological Restoration and Conservation of Coastal Wetlands in Universities of Shandong, The Institute for Advanced Study of Coastal Ecology, Ludong University, Yantai 264025, PR China;2. CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China;1. Department of Chemistry, University of Ghana, P.O. Box LG 56, Legon-Accra, Ghana;2. Institute for Environment and Sanitation Studies (IESS), University of Ghana, P.O. Box 209, Legon-Accra, Ghana;3. Department of Agroecology, Aarhus University, Forsogsvej 1, DK-4200, Slagelse, Denmark;1. Mood and Anxiety Disorders Research Program, Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States;2. Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States;3. Mental Health Service, Jesse Brown VA Medical Center, Chicago, IL, United States;4. Department of Psychology, University of Illinois at Chicago, United States;5. Stanford University, Department of Psychology, Stanford, CA, United States |
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| Abstract: | Laboratory and field experiments have been used to indicate the relative importance of mercury in dissolved and particulate phases as sources of mercury to mussels in a contaminated estuary. Laboratory experiments have demonstrated that mussels can accumulate inorganic mercury from sea-water, phytoplankton, and suspended sediment. Following exposure, concentrations were normally higher in the gills, digestive gland, and kidneys than in the adductor muscle, mantle, and foot, and the distribution of mercury between organs varied according to source. The relative bioavailabilities of inorganic mercury in water, phytoplankton, and sediment are estimated to be in the ratios 10:5:1. Mussels exposed for four weeks in a mercury-contaminated estuary accumulated primarily inorganic mercury from suspended sediment at the seaward end of the estuary, but further upstream uptake from solution and of methylmercury compounds were more important. |
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