Spatial and temporal variability of biochemical responses in resident fish after the M/V Hebei Spirit oil spill (Taean, Korea)

Title
Spatial and temporal variability of biochemical responses in resident fish after the M/V Hebei Spirit oil spill (Taean, Korea)
Author(s)
정지현; 김문구; 임운혁; 김하나; 채영선; 안준건; 한기명; 심원준
KIOST Author(s)
Jung, Jee Hyun(정지현)Kim, Moonkoo(김문구)Yim, Un Hyuk(임운혁)An, Joon Geon(안준건)Han, Gi Myung(한기명)Shim, Won Joon(심원준)
Publication Year
2012-11-12
Abstract
After the Hebei Spirit oil spill incident (7th December, 2007) in the westcoast of Korea, biliary PAH metabolite and hepatic biomarkers in a pelagicand a benthic fish was monitored for four years. Concentrations of 16 PAHsand alkylated PAHs in fish muscle were highest (22.0 ng/g d.w. for 16 PAHsand 284 ng/g d.w. for alkylated PAHs) at 5 days after the spill and thendecreased rapidly to background levels at 11 months after the spill. Fishfrom the oiled site had elevated biliary PAH metabolite concentrations immediatelyafter the spill these declined steadily in both species, but were stillabove reference site value. Regarding our results of detoxification response,markers of Phase I followed a similar trend with levels of biliary metabolites,while markers of Phase II and GST appeared relatively unchanged. CYP1Aactivity (induction/inhibition) was fluctuated in both species. Brain acetylcholinesteraseactivity was not related to oil exposure. The high correlationrate between the CYP 1A hepatic detoxification system and PAHs degradationas shown by biliary PAH metabolites in both species further supportsthe use of CYP 1A as a reliable biomarker of oil exposure in fish, especiallywhen both measurements are used complementarily.d PAHs in fish muscle were highest (22.0 ng/g d.w. for 16 PAHsand 284 ng/g d.w. for alkylated PAHs) at 5 days after the spill and thendecreased rapidly to background levels at 11 months after the spill. Fishfrom the oiled site had elevated biliary PAH metabolite concentrations immediatelyafter the spill these declined steadily in both species, but were stillabove reference site value. Regarding our results of detoxification response,markers of Phase I followed a similar trend with levels of biliary metabolites,while markers of Phase II and GST appeared relatively unchanged. CYP1Aactivity (induction/inhibition) was fluctuated in both species. Brain acetylcholinesteraseactivity was not related to oil exposure. The high correlationrate between the CYP 1A hepatic detoxification system and PAHs degradationas shown by biliary PAH metabolites in both species further supportsthe use of CYP 1A as a reliable biomarker of oil exposure in fish, especiallywhen both measurements are used complementarily.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/27364
Bibliographic Citation
33차 북미 환경독성화학회(SETAC, Society of Environmental Toxicology & Chemistry), pp.292, 2012
Publisher
33차
Type
Conference
Language
English
Publisher
33차
Related Researcher
Research Interests

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

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