TY - JOUR T1 - Impact of chronic cadmium exposure at environmental dose on escape behaviour in sea bass (Dicentrarchus labrax L.; Teleostei, Moronidae) A1 - Faucher,Karine A1 - Fichet,Denis A1 - Miramand,Pierre A1 - Lagardere,Jean-Paul AD - IFREMER, ULR, CNRS, UMR 6217,Ctr Rech Ecosyst Littoraux Anthropises, F-17137 Lhoumeau, France. UR - https://archimer.ifremer.fr/doc/00000/3939/ DO - 10.1016/j.envpol.2007.02.017 KW - Bioaccumulation KW - Escape behaviour KW - Chronic cadmium exposure KW - Neuromast KW - Fish lateral system N2 - 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 accumulation in gills and scales decreased significantly and fish escape behaviour had recovered. This study presents a new concept in ecotoxicology: using behavioural change to reveal the effects of pollution levels, scarcely detectable by currently used techniques (physiological responses). (C) 2007 Elsevier Ltd. All rights reserved. Y1 - 2008 PB - Elsevier JF - Environmental Pollution SN - 0269-7491 VL - 151 IS - 1 SP - 148 EP - 157 ID - 3939 ER -