“…They were highest close to the Lena River delta and northward (roughly along 130°E). This also agrees with the patterns reported for terrestrial biomarkers such as lignin phenols (e.g., Bröder, Tesi, Andersson, et al, 2016;Karlsson et al, 2014;Tesi et al, 2014) and solvent-extractable lipids (e.g., Bischoff et al, 2016;Bröder, Tesi, Andersson, et al, 2016;Doğrul Selver et al, 2015;Karlsson et al, 2011Karlsson et al, , 2014Sparkes et al, 2015). The comparison of the distribution of bulk OC with terrOC revealed that the high OC concentrations on the outer eastern East Siberian Sea shelf are probably to a large part caused by marine primary production, since terrOC concentrations in that area are rather low.…”