EXPRESSION OF ENZYMATIC BIOMARKER IN FERAL FISH SPECIES FOLLOWING THE HEBEI SPRIT OIL SPILL(TAEAN, KOREA)

Title
EXPRESSION OF ENZYMATIC BIOMARKER IN FERAL FISH SPECIES FOLLOWING THE HEBEI SPRIT OIL SPILL(TAEAN, KOREA)
Author(s)
정지현; 임운혁; 김문구; 하성용; 안준건; 원종호; 한기명; 김남숙; 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
2010-06-02
Abstract
On December 7 2007, approximately 12,547 kl of mixed crude oils were spilled from the tanker Hebei Spirit into Koreas Western Sea. Water and sediment column concentrations of parent and alkylated polycyclic hydrocarbons (PAH) were initially elevated, but in water these had fallen to reference site levels six weeks after the spill. Tissue alkylated PAH concentrations in the pelagic rockfish (Sebastes schlegeli) and the benthic marbled flounder (Pseudopleuronectes yokohamae) sampled near the spill site were higher than in the same species from an unaffected reference site for up to three weeks after the spill, but then fell to reference site levels; tissue concentrations of parent PAH did not change as a result of 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 eleven months after the spill. Oiled-site fish showed hepatic cytochrome P-450 (CYP 1A) induction (CYP 1A mRNA, CYP 1A protein and EROD activity) whose trends closely followed those of biliary PAH metabolite concentrations, implying continuous exposure to PAH, even in the pelagic rockfish. This suggests that even the pelagic rockfish was exposed to PAH for the duration of this monitoring operation, probably though contamination of benthic prey components. Biliary PAH metabolites and CYP1A induction have persisted for longer than did similar responses following the Sea Empress and (at least for pelagic fish) Braer spills. Brain acetylcholinesterase activity was not related to oil exposure.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/28954
Bibliographic Citation
6th Inaternational conference on marine pollution and ecotoxicology, pp.125, 2010
Publisher
City Unv. of Hong Kong
Type
Conference
Language
English
Publisher
City Unv. of Hong Kong
Related Researcher
Research Interests

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

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