Lipid biomarkers and oceanographic parameters in surface water and surface sediments in the eastern China marginal seas@en

This dataset comprises new data and previously published data on marine lipid biomarkers (brassicasterol, dinosterol, C37 alkenones, and the sum of them [∑PB]) in surface suspended particles at 334 stations from seven cruises between 2010 and 2015, and in surface sediments at 258 stations from eight cruises between 2006 and 2012 in the eastern China marginal seas (ECMS). Of all marine lipid biomarker data, 107 surface suspended particle samples were newly measured, with 227 surface suspended particle samples and 258 sediment samples previously published. We also provide the following oceanographic data, most of which were collected from published results (as described in the publication): sea surface temperature (SST, n = 273, from five cruises in summer of 2010–2015), salinity (n = 273, from five cruises in summer of 2010–2015), nutrient concentrations (dissolved inorganic nitrogen [DIN], dissolved inorganic phosphorus [DIP] and silicate [Si]) (n = 133, from three cruises in summer of 2011 and 2015) and Chl a (chlorophyll a, n = 229, from five cruises in summer of 2010–2014) in the surface water, as well as terrestrial biomarker [∑(C27 + C29 + C31) n-alkanes] contents (n = 226), TOC (total organic carbon content, n = 200), δ13CTOC (stable carbon isotope values for TOC, n=269), and sedimentation rate (n = 220) in surface sediments. Some data were measured using in situ CTD instrument in this study: sea surface temperature and salinity in the East China Sea in June 2010 and July 2013 (n = 54), and Chl a in the Changjiang River Estuary in August 2015 (n = 33). The contents of ∑(C27 + C29 + C31) n-alkanes in the southern Yellow Sea in April 2012 (n = 32) were also newly measured. The surface suspended particle samples were obtained by filtering on Whatman GF/F filters, and the surface sediments were collected by multiple corers or stainless-steel grab samplers. Marine and terrestrial lipid biomarkers were analyzed by gas chromatograph (Agilent 6890N) according to the method in Zhao et al. 2006 (doi: 10.1016/j.orggeochem.2005.08.022) and Wu et al. 2016 (doi: 10.1002/2015JG003167). The study resulting from this analysis has been published in Frontiers in Marine Science (doi:10.3389/fmars.2022.824181).本数据集涵盖中国东部边缘海（eastern China marginal seas, ECMS）内2010至2015年间7个航次的334个站位表层悬浮颗粒物（surface suspended particles），以及2006至2012年间8个航次的258个站位表层沉积物（surface sediments）中的海洋脂质生物标志物（marine lipid biomarkers）数据，包含新测定数据与已发表数据；该类生物标志物包括菜子甾醇（brassicasterol）、甲藻甾醇（dinosterol）、C37烯酮类化合物，以及上述三者之和[∑PB]。在所有海洋脂质生物标志物数据中，107个表层悬浮颗粒物样品为本次新测定，另有227个表层悬浮颗粒物样品与258个沉积物样品为已发表数据。本数据集还提供以下海洋学数据，其中多数来自已发表成果（详见相关出版物）：2010-2015年夏季5个航次获取的表层海水水温（sea surface temperature, SST，n=273）与盐度（salinity，n=273）；2011年与2015年夏季3个航次获取的营养盐浓度，包括溶解无机氮（dissolved inorganic nitrogen, DIN）、溶解无机磷（dissolved inorganic phosphorus, DIP）与硅酸盐（silicate, Si）（n=133）；以及2010-2014年夏季5个航次获取的表层海水叶绿素a（Chl a）浓度（n=229）。此外还包含表层沉积物中的相关指标：陆源生物标志物[∑(C27 + C29 + C31)正构烷烃]含量（n=226）、总有机碳（total organic carbon, TOC）含量（n=200）、TOC的稳定碳同位素值（δ¹³C_TOC，n=269）以及沉积速率（n=220）。部分数据为本次研究通过原位CTD仪器测定：2010年6月与2013年7月东海海域的表层海水水温与盐度（n=54），以及2015年8月长江口海域的叶绿素a浓度（n=33）。2012年4月南黄海海域的∑(C27 + C29 + C31)正构烷烃含量（n=32）亦为本次新测定。表层悬浮颗粒物样品通过Whatman GF/F滤膜过滤获取，表层沉积物则采用多管采样器或不锈钢抓斗式采泥器采集。海洋与陆源脂质生物标志物的分析采用气相色谱仪（Agilent 6890N），分析方法参照Zhao等2006年（doi: 10.1016/j.orggeochem.2005.08.022）与Wu等2016年（doi: 10.1002/2015JG003167）的研究。本数据集相关研究成果已发表于《Frontiers in Marine Science》（doi:10.3389/fmars.2022.824181）。