Biogeochemical measurements of sediments collected at station MSM15/1_377-1 (microbial mat 4) in the Black Sea during the MSM15/1 cruise in 2010

Biogeochemical measurements in sediment cores collected with the submersible JAGO (pusch cores) and a TV-MUC in the Black Sea during MSM15/1, Northwest Crimea (HYPOX Project), at water depths between 152-156 m. A series of microbial mats were sampled on the hypoxic region of the Crimean Shelf. Concentrations of organic carbon (Corg) and nitrogen (N) were measured on finely powdered, freeze-dried subsamples of sediment using a using a Fisons NA-1500 elemental analyzer. For organic carbon determination samples were pre-treated with 12.5% HCl to remove carbonates. Chlorophyll a (chl a), phaeopigments (PHAEO) and chloroplastic pigment equivalents (CPE) was measured according to Schubert et al., (2005) and total hydrolyzable amino acids (THAA) and single amino acid: ASP, GLU, SER, HIS, GLY, THR, ARG, ALA, TYR, MET, VAL, PHE, ILE, LEU, LYS following Dauwe et al., 1998.本数据集涵盖西北克里米亚（HYPOX项目）海域MSM15/1科考航次的生物地球化学测量数据：于水深152~156米的黑海区域，采用JAGO型潜水器（submersible JAGO，搭载推取式岩芯采样器push cores）与电视多管采样器（TV-MUC）采集沉积物岩芯，并在克里米亚陆架缺氧区域采集了一系列微生物席样品。采用Fisons NA-1500元素分析仪，对经研磨为细粉的冷冻干燥沉积物子样品测定有机碳（Corg）与氮（N）的浓度；为测定有机碳，样品需经12.5%盐酸（HCl）预处理以去除碳酸盐组分。叶绿素a（chl a）、褐藻素（PHAEO）与叶绿体色素当量（CPE）的测定参照Schubert等（2005）的实验方法；总水解氨基酸（THAA）及各单体氨基酸（天冬氨酸ASP、谷氨酸GLU、丝氨酸SER、组氨酸HIS、甘氨酸GLY、苏氨酸THR、精氨酸ARG、丙氨酸ALA、酪氨酸TYR、甲硫氨酸MET、缬氨酸VAL、苯丙氨酸PHE、异亮氨酸ILE、亮氨酸LEU、赖氨酸LYS）的测定则遵循Dauwe等（1998）的分析方案。