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Effects of Phenanthrene Exposure on the Acetylcholinesterase Activity of Olive Flounder (Paralichthys olivaceus)

  • Jee Jung-Hoon (Institute of Fisheries Sciences, Pukyong National University) ;
  • Kang Ju-Chan (Department of Aquatic Life Medicine, Pukyong National University)
  • Published : 2003.12.01

Abstract

Acetylcholinesterase (AChE) activity is a potential biomarker for phenanthrene exposure in aquatic organisms. Olive flounder (Paralichthys olivaceus) were exposed to three different concentrations (0.5, 1.0 and 2.0, uM) of phenanthrene for four weeks. AChE activities in the brain, heart and eyes were documented. Inhibition of AChE activity was found significant in flounder treated with a concentration greater than $1.0 {\mu}M$ of phenanthrene. This indicates that a chronic exposure to phenanthrene induces damage in various organs (brain, heart and eyes) and changes of AChE activities might be a useful biomarker to assess the impacts induced by polycyclic aromatic hydrocarbon (PAH). Evidence from this study confirms that the measurement of AChE in the brain and eyes of flounder is a valuable tool that along with other biomarkers can maximize an ecotoxicologists' confidence in assessing the impacts of oil and PAH pollution in the aquatic environment.

Keywords

References

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