Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.2/1515
Título: Bioaccumulation of lead, calcium and strontium and their relationships in the Octopus Octopus vulgaris
Autor: Seixas, Sónia
Pierce, Graham J.
Palavras-chave: Calcium
Cephalopods
Lead
Octopus vulgaris
Rubidium
Data: 2005
Editora: Springer
Citação: Seixas, Sónia; Pierce, Graham J. - Bioaccumulation of Lead, Calcium and Strontium and their Relationships in the Octopus Octopus vulgaris [Em linha]. "Water, Air, and Soil Pollution". ISSN 0049-6979 . Vol. 163, Nº 1-4 (Mai 2005), p. 137–152
Resumo: Octopuses (Octopus vulgaris) landed from commercial fishing were sampled and the concentrations of lead, calcium and strontium, in digestive gland, branchial heart, gills, mantle and arms, were determined using PIXE (particle-induced X-ray emission). Lead was detected in all tissues, although not in samples from all animals analysed. Female octopuses accumulated more lead in digestive gland than did males. The digestive gland index, an indicator of nutritional status, showed a negative correlation with lead concentration in both sexes. There were positive correlations between the concentration of lead and those of calcium and strontium in digestive gland and a negative correlation between lead and calcium in branchial heart tissue. Concentrations of calcium in arms were lower in autumn and spring than in winter and summer. Lead content increased with increasing body weight and mantle length so we can conclude that lead continues to accumulate during the animal’s life. Concentrations of lead in two samples were higher than the maximum legally permitted concentration of lead in food.
URI: http://hdl.handle.net/10400.2/1515
ISSN: 0049-6979
Versão do Editor: DOI: 10.1007/s11270-005-0007-5
Aparece nas colecções:Ciências da Vida - Artigos em revistas internacionais / Papers in international journals

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