Biological impacts of oil pollution: A case study of the M/V Hebei Spirit spill in Taean, Korea

Title
Biological impacts of oil pollution: A case study of the M/V Hebei Spirit spill in Taean, Korea
Author(s)
정지현; 임운혁; 한기명; 안준건; 원종호; 하성용; 심원준
KIOST Author(s)
Jung, Jee Hyun(정지현)Yim, Un Hyuk(임운혁)Han, Gi Myung(한기명)An, Joon Geon(안준건)Ha, Sung Yong(하성용)Shim, Won Joon(심원준)
Publication Year
2009-05-17
Abstract
The M/V Hebei Spirit spilled about 12,547 kl of crude oil into the west coast of Republic of Korea on December 7, 2007. More than 150 km of coastline were heavily oiled. Hanging culture facilities for oysters and in-land fish aquaculture facilities were directly affected by fresh crude oil. Many marine species were affected and were found dead. To clarify the impact on fish physiological response by oil spill, hepatic biomarker responses were measured in several fish species from Euhang-ri, where the impact was serious. Biomarkers were selected in order to evaluate the toxic effects on hepatic detoxification system exposed to PAHs. Level of Ethoxyresorufin O-deethylase (EROD), Cytochrome P-450 1A (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 (AChE) 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. Accordingly, biological activities (enzyme induction/inhibition) fluctuated along with PAHs levels, whenever a secondary release occurred. Expectantly, the levels of PAHs metabolites and biomarker response differed with fish species that are coming from different habitat with different behavioral trends, sensitivity and metabolic processes. Hence, risk assessment on the actual impact of oil spill on fish should consider these essential biological and
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/29529
Bibliographic Citation
15th Internationtinal symposium on pollutant responses in marine organism, pp.306, 2009
Publisher
15th Internationtinal symposium on pollutant responses in marine organism
Type
Conference
Language
English
Publisher
15th Internationtinal symposium on pollutant responses in marine organism
Related Researcher
Research Interests

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

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse