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	Provedor de dados OMA (27) Autor Joiris, C.R. (27) Holsbeek, L. (11) Bossicart, M. (5) Bouquegneau, J.-M. (3) Ali, B.I. (2) Azokwu, M.I. (2) Bertels, A. (2) Billen, G. (2) Delbeke, K. (2) Otchere, F.A. (2) Tapia, G. (2) Ali, I.B. (1) Antoine, N. (1) Baeyens, W.F.J. (1) Bartell, S.M. (1) Boischo, A.A.P. (1) Daro, M.H. (1) Das, H.K. (1) Debacker, V. (1) Faustman, S.M. (1) Mais... Palavra-chave Accumulation Heavy metals Anadara senilis ASE (1) Accumulation Mercury Speciation (biological) ISW (1) Aves [Birds] (1) Aves [Birds] Cetacea [whales (1) Bangladesh (1) Belgian Coast ANE (1) Belgium (1) Belgium ANE (1) Belgium ISE (1) Bivalvia (1) Detoxification Mercury Social behaviour Stranding ANE (1) Dolphins and porpoises] ANE (1) Dolphins and porpoises] Pinnipedia (1) English Channel Belgium (1) Ghana (1) Mercury Cetacea [whales (1) Mercury Crassostrea tulipa Perna perna [brown mussel] ASE (1) Nigeria (1) North Sea (1) Organic compounds ANE (1) Mais... Tipo do documento Info:eu-repo/semantics/article (26) Info:eu-repo/semantics/book (1) Ano 2001 (1) 2000 (3) 1999 (4) 1998 (2) 1997 (4) 1995 (1) 1992 (2) 1991 (1) 1990 (1) 1989 (1) 1988 (2) 1985 (1) 1983 (1) 1982 (1) 1980 (1) 1974 (1) Mais... País Belgium (27) Idioma Inglês (24) Francês (2) Holandês (1)		Registro completo Provedor de dados:  OMA País:  Belgium Título:  Mercury and organochlorines in four sperm whales stranded on the Belgian coast, November 1994 Autores:  Joiris, C.R. Holsbeek, L. Bossicart, M. Tapia, G. Data:  1997 Ano:  1997 Palavras-chave:  Detoxification Mercury Social behaviour Stranding ANE Belgium ANE North Sea Southern Bight Resumo:  Four sperm whales (three subadult males stranded on the Belgian coast, a fourth older male found dead at sea) were analysed for total mercury, methylmercury and organochlorines. All four were part of a total of 24 sperm whales that stranded on the North Sea coasts over a period of six months, a highly unusual phenomenon. Total mercury levels ranged from 0.5 µg/g fw in kidney and 1 in muscle, up to 15 in liver. The finding of at least 90% of the mercury in its inorganic form confirms the existence of detoxification mechanisms in the liver of cetaceans. PCB concentrations in muscle, liver, kidney and blubber ranged from 10 to 25 µg/g lipids. These results are in the same order of magnitude as literature data, which however does not imply that there is no impact on the populations. Social affiliation with a particular adult bull rather than a direct effect of pollutants may have been the primary cause of the stranding of the three younger animals: they apparently remained close to the older one (the leader?) dead at sea, and stranded in very shallow water. Indirect impact of anthropogenic pollutants influencing the behaviour and/or the health of a social cluster is one plausible hypothesis to explain why a large number of sperm whales got trapped in the North Sea, but limited data available on the large bull fail to support this. Tipo:  Info:eu-repo/semantics/article Idioma:  Inglês Identificador:  http://www.vliz.be/nl/open-marien-archief?module=ref&refid=837 Fonte:  %3Ci%3EBull.+Kon.+Belg.+Inst.+Natuurwet.+Biologie+67%28suppl.%29%3C%2Fi%3E%3A+69-73 Direitos:  info:eu-repo/semantics/restrictedAccess Fechar

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