Distribution of sterol compounds in the northern East China Sea influenced by the low salinity water mass

Title
Distribution of sterol compounds in the northern East China Sea influenced by the low salinity water mass
Author(s)
김문구
KIOST Author(s)
Kim, Moonkoo(김문구)
Publication Year
2015-05-21
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.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25472
Bibliographic Citation
2015년도 한국해양과학기술협의회 공동학술대회, pp.395 - 399, 2015
Publisher
한국해양과학기술협의회
Type
Conference
Language
English
Publisher
한국해양과학기술협의회
Related Researcher
Research Interests

Oil pollution,Antifouling paint,Dissolved methane,유류오염,방오도료,용존메탄

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