Environmental history told by mussel shells |
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| Affiliation: | 1. Department of Radiation Sciences, Division of Physical Biology, Uppsala University, S-751 21 Uppsala, Sweden;1. Department of Mechanical Engineering, Faculty of Engineering of Vitoria-Gasteiz, University of the Basque Country (UPV/EHU), Nieves Cano, 12, 01006 Vitoria-Gasteiz, Spain;2. Department of Mechanical Engineering, Faculty of Engineering of Gipuzkoa, University of the Basque Country (UPV/EHU), Plaza de Europa, 1, 20018 San Sebastián, Spain;1. Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia;2. Université de Sfax, Faculté des Sciences de Sfax, Département de Physique, Laboratoire des matériaux composites céramiques et polymères (LaMaCoP) Faculté des sciences de Sfax BP 805, Sfax 3000, Tunisia;1. Department of Environmental and Natural Resources Management, School of Engineering, University of Patras, 2 Seferi Str., 30100 Agrinio, Greece;2. Università di Napoli Federico II, Centro Interdipartimentale di Ricerca sulla Risonanza Magnetica Nucleare (CERMANU), Via Università 100, 80055 Portici, Italy;3. Department of Physics, University of Ioannina, 45110 Ioannina, Greece;1. Department of Inorganic Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria;2. Department of Nuclear Physics, Australian National University, Building 57, Garran Road, ACT 2601, Australia;3. VERA Institute, Faculty of Physics, Isotope Research, University of Vienna, Währinger Straße 17, A-1090 Vienna, Austria |
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| Abstract: | Each year a mussel produces an incremental layer of its shell composed mainly of calcium carbonate and a small fraction of organic substance. Many other elements are simultaneously deposited in these annual layers and are assumed to be essentially immobile. Although use of shells of bivalves has been suggested for monitoring metals in natural waters, little is known of the relationship of environmental conditions and age of molluscs with the concentration and distribution of elements in the shell. The nuclear microprobe was used to determine the temporal history of concentrations of elements in a shell of the freshwater mussel Anodonta. The high spatial (3 μm) resolution allowed analyses within parts of single years. |
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