| Registro completo |
| Provedor de dados: |
5
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| País: |
France
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| Título: |
Brachidontes variabilis and Patella sp as quantitative biological indicators for cadmium, lead and mercury in the Lebanese coastal waters
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| Autores: |
Nakhle, Khaled
Cossa, Daniel
Khalaf, Ghaby
Beliaeff, Benoit
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| Data: |
2006-07
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| Ano: |
2006
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| Palavras-chave: |
Lebanon
Mediterranean Sea
Bioconcentration factors
Patella sp
Brachidontes variabilis
Bioindicator
Trace metal
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| Resumo: |
The mussel, Brachidontes variabilis, and the limpet, Patella sp., were used as indicators to monitor cadmium, lead and mercury concentrations along the Lebanese coast. Studies were carried out in order to define the best strategy for assessing and minimizing the effects of size and physiological condition on the metal contents of the molluscs, and corrective models were constructed. Metal concentrations in surface water were measured to estimate bioconcentration factors (BCFs). The BCFs varied from 8.3 x 10(3) to 3.4 x 10(4), from 7.5 x 10(3) to 8.0 X 10(3) and from 3.0 x 10(4) to 3.2 x 10(4), for Cd, Pb and Hg, respectively. For limpets, BCFs varied from 1.7 x 10(4) to 7.4 x 10(4) for Cd, from 2.5 x 10(3) to 6 x 103 for Pb and remained fairly constant at around 104 for Hg. The highest BCFs were associated with lowest contamination levels. The results of the geographical survey exhibited a similar large-scale spatial pattern for the two species and followed the metal concentration distributions measured in the waters.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/2006/publication-1344.pdf
DOI:10.1016/j.envpol.2005.09.016
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| Editor: |
Elsevier
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| Relação: |
http://archimer.ifremer.fr/doc/00000/1344/
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| Formato: |
application/pdf
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| Fonte: |
Environmental Pollution (0269-7491) (Elsevier), 2006-07 , Vol. 142 , N. 1 , P. 73-82
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| Direitos: |
2005 Elsevier Ltd All rights reserved
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