Lipid composition of particulate matter measured on water bottle samples during POLARSTERN cruise ARK-XI/1

The lipid composition of particulate matter in oceanic environments can provide informations on the nature and origin of the organic matter as well as on their transformation processes. Molecular characteristics for lipids in the Arctic environment have been used as indicators of the sources and transformation of organic particulate matter (Smith et al., 1997; Fahl and Stein, 1997, 1999). However, the features of the lipid composition of particulate matter in the Arctic with its high seasonality of ice Cover and primary productivity has been studied insufficiently. […]

海洋环境中颗粒物的脂质组成，可提供有关有机质性质、来源及其转化过程的相关信息。北极环境中脂质的分子特征，已被用作有机颗粒物来源与转化过程的指示指标（Smith等，1997；Fahl与Stein，1997、1999）。然而，北极地区海冰覆盖与初级生产力均存在高度季节性变化，该区域颗粒物脂质组成的特征却尚未得到充分研究……