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| Vignet, Caroline; Le Menach, Karyn; Lyphout, Laura; Guionnet, Tiphaine; Frere, Laura; Leguay, Didier; Budzinski, Helene; Cousin, Xavier; Begout, Marie-laure. |
| In the last 10 years, behavior assessment has been developed as an indicator of neurotoxicity and an integrated indicator of physiological disruption. Polycyclic aromatic hydrocarbon (PAH) release into the environment has increased in recent decades resulting in high concentrations of these compounds in the sediment of contaminated areas. We evaluated the behavioral consequences of long-term chronic exposure to PAHs, by exposing zebrafish to diets spiked with three PAH fractions at environmentally relevant concentrations. Fish were exposed to these chemicals from their first meal (5 days postfertilization) until they became reproducing adults (at 6 months old). The fractions used were representative of PAHs of pyrolytic (PY) origin and of two oils... |
| Tipo: Text |
Palavras-chave: Danio rerio; Polycyclic aromatic hydrocarbon; Heavy oil; Light crude oil; Anxiety-like behavior; Photomotor responses; Maze; Novel tank. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00188/29910/28380.pdf |
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| Benhaim, David; Begout, Marie-laure; Chatain, Beatrice. |
| The present work compared wild-caught and domesticated sea bass juveniles swimming activity, exploration and visual attraction induced by an unfamiliar congener located behind a transparent wall at the end of one arm of a T-maze. This cognitive challenge was based on the hypothesis that placed into a novel and therefore stressful environment; the fish would adopt a gregarious behaviour even though they were not familiar with the present congener. Twenty individuals of similar size from both origins were individually tested. After a 5min acclimatization period, the wall of the start-box was removed and the maze was filmed during 20 min. Different swimming variables including angular velocity (Vang), total distance travelled (Dtot), velocity mean (Vel), time... |
| Tipo: Text |
Palavras-chave: Domestication; Maze; Visual cue; Personality; Swimming activity. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00192/30322/28793.pdf |
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