Indeed, estimates suggest that the wider economic impact of SSF may be as much as 2.6 times the reported landing value (Dyck and Sumaila, 2010). In particular, in the Black Sea, SSF account for almost half of all revenue, whereas in the subregions that border the southern Mediterranean coast, namely the western, central and eastern Mediterranean, SSF contribute 25, 29 and 23 percent of revenue, respectively. Considering this, and also considering the challenges in defining SSF (Box 9), the WGSSF advised that an improved characterization of SSF was needed for the Mediterranean and the Black Sea.