Demina, Lyudmila L; Galkin, Sergey V; Dara, O M (2012): Trace metals in shells of mussels and clams from deep-sea hydrothermal vent fields of the Mid-Atlantic Ridge and East Pacific Rise. P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, PANGAEA, https://doi.org/10.1594/PANGAEA.788382, Supplement to: Demina, LL et al. (2012): Trace metal bioaccumulation in the shells of mussels and clams at deep-sea hydrothermal vent fields. Translated from Geokhimiya, 2012, 50(2), 147-163, Geochemistry International, 50(2), 133-147, https://doi.org/10.1134/S0016702911120056
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Bioaccumulation of trace metals in carbonate shells of mussels and clams was investigated at seven hydrothermal vent fields of the Mid-Atlantic Ridge (Menez Gwen, Snake Pit, Rainbow, and Broken Spur) and the Eastern Pacific (9°N and 21°N at the East Pacific Rise and the southern trough of Guaymas Basin, Gulf of California). Mineralogical analysis showed that carbonate skeletons of mytilid mussel Bathymodiolus sp. and vesicomyid clam Calyptogena m. are composed mainly of calcite and aragonite, respectively. The first data were obtained for contents of a variety of chemical elements in bivalve carbonate shells from various hydrothermal vent sites. Analyses of chemical compositions (including Fe, Mn, Zn, Cu, Cd, Pb, Ag, Ni, Cr, Co, As, Se, Sb, and Hg) of 35 shell samples and 14 water samples from mollusk biotopes revealed influences of environmental conditions and some biological parameters on bioaccumulation of metals. Bivalve shells from hydrothermal fields with black smokers are enriched in Fe and Mn by factor of 20-30 relative to the same species from the Menez Gwen low-temperature vent site. It was shown that essential elements (Fe, Mn, Ni, and Cu) more actively accumulated during early ontogeny of the shells. High enrichment factors of most metals (n x 100 - n x 10000) indicate efficient accumulation function of bivalve carbonate shells. Passive metal accumulation owing to adsorption on shell surfaces was estimated to be no higher than 50% of total amount and varied from 14% for Fe to 46% for Mn.
Median Latitude: 29.154888 * Median Longitude: -62.164078 * South-bound Latitude: 9.833000 * West-bound Longitude: -111.400000 * North-bound Latitude: 37.840000 * East-bound Longitude: -31.516667
Datasets listed in this Collection
- Demina, LL; Galkin, SV; Dara, OM (2012): (Table 3) Mineral compositions and lengths of mollusk shells from some hydrothermal fields of the Mid-Atlantic Ridge and East Pacific Rise. https://doi.org/10.1594/PANGAEA.788331
- Demina, LL; Galkin, SV; Dara, OM (2012): (Table 4) Carbon isotopic compositions of carbonate material of shells of Bathymodiolus sp. mussels and Calyptogena magnifica clams from hydrothermal fields of the Mid-Atlantic Ridge and East Pacific Rise. https://doi.org/10.1594/PANGAEA.788341
- Demina, LL; Galkin, SV; Dara, OM (2012): (Table 5) Chemical compositions of bivalve shells from some deep-sea hydrothermal vent fields of the Mid-Atlantic Ridge and East Pacific Rise. https://doi.org/10.1594/PANGAEA.788355
- Demina, LL; Galkin, SV; Dara, OM (2012): (Table 6) Average contents and enrichment factors of chemical elements in shells and gills of Bathymodiolus azoricus from the Rainbow Hydrothermal Field. https://doi.org/10.1594/PANGAEA.788335
- Demina, LL; Galkin, SV; Dara, OM (2012): (Table 7) Percentages of adsorbed species of some metals in bivalve shells from hydrothermal fields of the Mid-Atlantic Ridge and East Pacific Rise. https://doi.org/10.1594/PANGAEA.788353