Biomarker responses in pelagic and benthic fish over 1 year following the Hebei Spirit oil spill (Taean, Korea) |
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| Authors: | Jung Jee-Hyun Kim Moonkoo Yim Un Hyuk Ha Sung Yong An Joon Geon Won Jong Ho Han Gi Myung Kim Nam Sook Addison Richard F Shim Won Joon |
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| Institution: | Oil and POPs Research Group, Korea Ocean Research and Development Institute, Geoje 656-834, South Korea |
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| Abstract: | After the Hebei Spirit oil spill incident (7th December, 2007) in the west coast of Korea, contamination of biliary PAH metabolite and hepatic biomarkers in a pelagic and a benthic fish was monitored for 1 year. Concentrations of 16 PAHs and alkylated PAHs in fish muscle were highest (22.0 ng/g d.w. for 16 PAHs and 284 ng/g d.w. for alkylated PAHs) at 5 days after the spill and then decreased rapidly to background levels at 11 months after the spill. Fish from the oiled site had elevated biliary PAH metabolite concentrations immediately after the spill; these declined steadily in both species, but were still above reference site concentrations 2 months after the spill. Oiled-site fish showed hepatic CYP 1A induction whose trend closely followed those of biliary PAH metabolite concentrations, implying continuous exposure to PAHs. Brain acetylcholinesterase activity was not related to oil exposure. |
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| Keywords: | Hebei Spirit Oil spill CYP1A Ethoxyresorufin O-de-ethylase Acetylcholinesterase PAHs |
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