期刊
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
卷 37, 期 3, 页码 854-859出版社
WILEY
DOI: 10.1002/etc.4019
关键词
Fish; Oil; Behavior; Avoidance reaction; Water-soluble fraction
资金
- ITOPF RD award
- Total Fluides
When oil spills occur, behavior is the first line of defense for a fish to avoid being contaminated. We determined the avoidance threshold of the European seabass (Dicentrarchus labrax) to the water-soluble fraction (WSF) of oil using a dual-flow choice box. The results showed that a plume of 20%-diluted WSF (total polycyclic aromatic hydrocarbon [PAH] concentration: 8.54gL(-1)) triggered a significant avoidance response that was detected within 7.5min of introducing WSF-contaminated water into the experimental setup. However, the ecological relevance of seabass capacity to detect and avoid WSF remains to be established. In the short term, such a response is indeed liable to reduce seabass contact time with oil-contaminated water and thus preserve their functional integrity. In the long term, however, avoidance may contribute to the displacement of a population into a possibly less auspicious environment, with consequences very similar to those of contaminant exposure, that is, disturbed population dynamics and demography. Environ Toxicol Chem 2018;37:854-859. (c) 2017 SETAC
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