Distribution of sterol compounds in the northern East China Sea influenced by the low salinity water mass
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Title
- Distribution of sterol compounds in the northern East China Sea influenced by the low salinity water mass
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Author(s)
- 김문구
- KIOST Author(s)
- Kim, Moon Koo(김문구)
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Alternative Author(s)
- 김문구
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Publication Year
- 2015-05-21
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Abstract
- Sterol distributions in the dissolved phase and suspended particulate matter were investigated in the off-shore East China Sea influenced by the low salinity water mass. Total sterol concentrations in 16 water samples ranged from 663 to 5690 pg/L in the dissolved phase and 3200 to 31,900 pg/L in the suspended particulate matter. In the overall sterol composition, marine sterols dominated with 66% in the dissolved phase and 71 % in the suspended particulate matter. The dominant sterols in dissolved phase were β-sitosterol (25%), brassicasterol (24%), cholesterol (19%) and fucosterol (13%), and in the suspended particulate matter, brassicasterol (21%), cholesterol (20%), β-sitosterol (16%), and cholestenone (14%). Typical sewage markers such as coprostanol, α-cholestanol, epicoprostanol, and coprostanone were absent. However, molecular signatures of allochthonous terrestrial plants were still visible at such distances. There was a relationship between low salinity water mass in the East China Sea and terrestrial sterols, suggesting the influence of Yangtze River in transporting land derived organic matter to the off-shore East China Sea.0 pg/L in the dissolved phase and 3200 to 31,900 pg/L in the suspended particulate matter. In the overall sterol composition, marine sterols dominated with 66% in the dissolved phase and 71 % in the suspended particulate matter. The dominant sterols in dissolved phase were β-sitosterol (25%), brassicasterol (24%), cholesterol (19%) and fucosterol (13%), and in the suspended particulate matter, brassicasterol (21%), cholesterol (20%), β-sitosterol (16%), and cholestenone (14%). Typical sewage markers such as coprostanol, α-cholestanol, epicoprostanol, and coprostanone were absent. However, molecular signatures of allochthonous terrestrial plants were still visible at such distances. There was a relationship between low salinity water mass in the East China Sea and terrestrial sterols, suggesting the influence of Yangtze River in transporting land derived organic matter to the off-shore East China Sea.
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/25472
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Bibliographic Citation
- 2015년도 한국해양과학기술협의회 공동학술대회, pp.395 - 399, 2015
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Publisher
- 한국해양과학기술협의회
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Type
- Conference
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Language
- English
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