“…Application of δ 13 C and C/N analyses of sedimentary organic matter for reconstructing palaeo-environmental changes have been carried out in a range of environments (Lamb et al, 2006), including lagoons (Müller and Mathesius, 1999;Yamamuro, 2000), isolation basins (Chivas et al, 2001;Westman and Hedenström, 2002;Mackie et al, 2007), fjords (Bird et al, 1991;St-Onge and Hillaire-Marcel, 2001;Smittenberg et al, 2004), as well as estuaries (Malamud-Roam et al, 2006;Middelburg et al, 1997;Wilson, et al, 2005;Zong et al, 2006). The advantage of δ 13 C and C/N analysis is that it can be performed on most sediment, as only a small amount of organic carbon (micrograms to milligram) is required for analysis.…”