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Impact of chronic cadmium exposure at environmental dose on escape behaviour in sea bass (Dicentrarchus labrax L.; Teleostei, Moronidae) ArchiMer
Faucher, Karine; Fichet, Denis; Miramand, Pierre; Lagardere, Jean-paul.
The effect of chronic exposure to a low concentration (0.5 mu g l(-1)) of cadmium ions was investigated on escape behaviour of sea bass, Dicentrarchus labrax, using video analysis. Observations were also performed on the microanatomy of lateral system neuromasts. When fish were exposed for 4 h per day over 8 days to the cadmium ions, most of both types of neuromasts observed remained intact. However, some of them presented damaged sensory maculae. Whereas before cadmium exposure, fish responded positively to nearly all the lateral system stimulations, after exposure they decreased by about 10% their positive responses to Stimulations. From the 15th day after the beginning of cadmium exposure, neuromasts presented progressively less damage, cadmium...
Tipo: Text Palavras-chave: Bioaccumulation; Escape behaviour; Chronic cadmium exposure; Neuromast; Fish lateral system.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-3939.pdf
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