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	Provedor de dados ArchiMer (2) Autor Charmasson, Sabine (1) Chiffoleau, Jean-francois (1) Cosson, Richard P. (1) Harmelin-vivien, Mireille (1) Le Faouder, Antoine (1) Loyen, Jeanne (1) Radakovitch, Olivier (1) Sarradin, Pierre-marie (1) Strady, Emilie (1) Tronczynski, Jacek (1) Veron, Alain (1) Mais... Palavra-chave Pb-210 (2) Po-210 (2) Bathymodiolus (1) Bioaccumulation (1) Hydrothermal vent (1) Mediterranean Sea (1) Pelagic fishes (1) Phytoplankton (1) Radionuclide (1) Zooplankton (1) Mais... Tipo do documento Text (2) Ano 2015 (1) 2011 (1) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última 210Po and 210Pb trophic transfer within the phytoplankton–zooplankton–anchovy/sardine food web: a case study from the Gulf of Lion (NW Mediterranean Sea) ArchiMer Strady, Emilie; Harmelin-vivien, Mireille; Chiffoleau, Jean-francois; Veron, Alain; Tronczynski, Jacek; Radakovitch, Olivier. The transfer of 210Po and 210Pb in the food web of small pelagic fishes (from phytoplankton and zooplankton to anchovy Engraulis encrasicolus and sardine Sardina pilchardus) is investigated in the Gulf of Lion (GoL). We present original data of 210Po and 210Pb activity concentrations, C and N stable isotope ratios, measured (i) from different size classes of phytoplankton and zooplankton during spring and winter in different environments of the GoL, and (ii) in two fish species. Significant spatial patterns based on 210Po, 210Pb activity concentrations and 210Po/210Pb ratios in the different plankton size classes are evidenced by hierarchical clustering, both in spring and winter. This variability, also observed for C and N stable isotopes ratios, is... Tipo: Text Palavras-chave: Po-210; Pb-210; Phytoplankton; Zooplankton; Pelagic fishes; Mediterranean Sea. Ano: 2015 URL: https://archimer.ifremer.fr/doc/00255/36609/35264.pdf Po-210 and Pb-210 in the tissues of the deep-sea hydrothermal vent mussel Bathymodiolus azoricus from the Menez Gwen field (Mid-Atlantic Ridge) ArchiMer Charmasson, Sabine; Le Faouder, Antoine; Loyen, Jeanne; Cosson, Richard P.; Sarradin, Pierre-marie. The hydrothermal deep-sea vent fauna is naturally exposed to a highly specific environment enriched in potentially toxic species such as sulfides, metals and natural radionuclides due to the convective seawater circulation inside the oceanic crust and its interaction with basaltic or ultramafic host rocks. However, data on radionuclides in biota from such environment are very limited. An investigation was carried out on tissue partitioning of Po-210 and Pb-210, two natural radionuclides within the U-238 decay chain, in Bathymodiolus azoricus specimens from the Mid-Atlantic Ridge (Menez Gwen field). These two elements showed different distributions with high Pb-210 levels in gills and high Po-210 levels in both gills and especially in the remaining parts of... Tipo: Text Palavras-chave: Po-210; Pb-210; Radionuclide; Bathymodiolus; Bioaccumulation; Hydrothermal vent. Ano: 2011 URL: http://archimer.ifremer.fr/doc/00030/14172/11864.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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