Sedimentary organic matter as environmental indicators: Lipid compounds in a sediment core of Lake Suigetsu, Japan

Summary

Table 1 summarizes the results. High abundances of C₁₇ n-alkane, phytol, dinosterol and C₂₇ steradiene may be associated with the high primary productivity in BW conditions. In particular, farnesol, C₂₀ branched alkane, unsaturated alcohols may be closely related with intensive bacterial activities in aerobic condition. In FW environment, the organic composition is common to that of other FW lake sediments except for the presence of unusual C_{30: 1} hopanoid hydrocarbon.