Characteristics and provenance analysis of lipid biomarkers in marine sediments of Zhoushan islands
SHI Ye-jia1, CHEN Hai-min1, CHEN Juan-juan1, CHEN Jun-bing2
1. Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University, Ningbo 315211, China;
2. Zhejiang Institute of Hydrogeology and Engineering Geology, Ningbo 315000, China
Abstract：In order to study the origin of organic matter and phytoplankton community structure of marine sediments in Zhoushan, the non-polar matter and intact phospholipids composition in the sediment cores at 23 sites of the Daishan, Hengshan and Shengsi islands was examined by GC-MS and UPLC-MS. The study showed that the sediments organic material in the Zhoushan was derived from both terrestrial plants and marine organism, of which terrestrial inputs were about 60% and marine inputs were about 40%. The range of the ratio of high to low carbon hydrocarbon (∑T/∑M) was between 0.54 and 2.73, and the high ∑T/∑M value area was close to Hangzhou bay, the low ∑T/∑M value area was near the coastal of the East China sea. Compared with the Yangtze estuary area, Zhoushan sediment was less affected by terrestrial input, but much higher than the tide-frequent-occurrence area in the East China Sea. The content of Phosphatidylglycerol in sediments was higher than the Phosphatidylethanolamine and Phosphatidylinositol, the fatty acid parameter ∑C16/∑C18 was near 1. These results indicated that the main Phytoplankton in the sediments of Zhoushan was microalgae, and dinoflagellates and diatoms had no special advantages.
SHI Ye-jia,CHEN Hai-min,CHEN Juan-juan et al. Characteristics and provenance analysis of lipid biomarkers in marine sediments of Zhoushan islands[J]. Marine Environmental Science, 2018, 37(5): 678-684.
GRIMALT J O,OLIVÉ J.Source input elucidation in aquatic systems by factor and principal component analysis of molecular marker data[J].Analytica Chimica Acta,1993,278(1):159-176.
VOLKMAN J K,ROHJANS D,RULLKÖTTER J,et al.Sources and diagenesis of organic matter in tidal flat sediments from the German Wadden Sea[J].Continental Shelf Research,2000,20(10/11):1139-1158.
[7]
BLIGH E G,DYER W J.A rapid method of total lipid extraction and purification[J].Canadian Journal of Biochemistry and Physiology,1959,37(8):911-917.
[8]
WEHNER H,TESCHNER M,BOSECKER K.Chemical reactions and stability of biomarkers and stable isotope ratios during in vitro biodegradation of petroleum[J].Organic Geochemistry,1986,10(1):463-471.
[9]
GEARING P,GEARING J N,LYTLE T F,et al.Hydrocarbons in 60 northeast Gulf of Mexico shelf sediments:a preliminary survey[J].Geochimica et Cosmochimica Acta,1976,40(9):1005-1017.
MEAD R,GOÑI M A.A lipid molecular marker assessment of sediments from the Northern Gulf of Mexico before and after the passage of Hurricane Lili[J].Organic Geochemistry,2006,37(9):1115-1129.
[14]
HU J F,ZHANG H B,PENG P A.Fatty acid composition of surface sediments in the subtropical Pearl River estuary and adjacent shelf,southern China[J].Estuarine,Coastal and Shelf Science,2006,66(1/2):346-356.
RVTTERS H,SASS H,CYPIONKA H,et al.Microbial communities in a Wadden Sea sediment core-clues from analyses of intact glyceride lipids,and released fatty acids[J].Organic Geochemistry,2002,33(7):803-816.
