et al., 1999; Benner et al., 2004). Most of the Arctic outflow and, as a consequence, the total carbon mobilized into the Arctic Ocean, leave the Arctic basin via the Fram Srait, following [...] FDOM humic-like signal seems to be the dominant signal in the Arctic DOM-pool. Since CDOM and FDOM are strongly correlated in the Arctic Ocean and FDOM provides more qualitative information of DOM ( [...] 117, C11005, doi: 10.1029/2012JC008011. Fichot, C.G. et al. Pan-Arctic distributions of continental runoff in the Arctic Ocean. Sci. Rep. 3, 1053; DOI:10.1038/srep01053 (2013). Gonçalves-Araujo R.,