Biomarker Response of Feral Fish after the Hebei Spirit oil spill

Biomarker Response of Feral Fish after the Hebei Spirit oil spill
정지현; 임운혁; 김문구; 하성용; 안준건; 한기명; 원종호; 채영선; 김하나; 심원준
KIOST Author(s)
Jung, Jee Hyun(정지현)Yim, Un Hyuk(임운혁)Kim, Moonkoo(김문구)Ha, Sung Yong(하성용)An, Joon Geon(안준건)Han, Gi Myung(한기명)Shim, Won Joon(심원준)
Publication Year
To clarify the impact on fish physiological response by oil spill, hepatic biomarker responses were measured in several fish species from Euhang-ri, one of heavily oiled areas. Biomarkers were selected in order to evaluate the toxic effects on hepatic detoxification system exposed to PAHs. Level of ethoxyresorufin-O-deethylase (EROD), cytochrome P4501A (CYP1A) mRNA and protein were measured on a weekly or monthly basis from four days after the oil spill. The uptake of PAHs by fish was indirectly measured by pyrene metabolite, 1-OH-pyrene, using synchronous fluorescence spectrometry. Fish bile showed highly increased 1-OH-pyrene levels four days after the oil spill and then decreased to the reference level according to time. A significant induction in EROD and CYP1A mRNA and protein expression were observed from five days after the oil spill, and then decreased to reference level, too. Acetylcholine esterase activity was also slightly inhibited in initial fish samples compared to the reference site. Enzymatic biomarker levels increased rapidly in flatfish (marbled sole) caught at Euhang-ri on 23, July 2008. These results correlated well with bile 1-OH-pyrene levels. This episodic increase of bile 1-OH-pyrene level and biomarker response reflects secondary pollution from removal of oiled aquaculture facilities near the sampling site.
Bibliographic Citation
2nd International Conference on Environmental Health Science, pp.239, 2009
Related Researcher
Research Interests

Microplastic pollution,Persistent Organic Pollutants,Oil Pollution,미세플라스틱 오염,잔류성 유기오염물질,유류오염

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