Fig. 1

Tagging locations of dusky sharks Carcharhinus obscurus (red triangles, n = 21) in the western North Atlantic Ocean from 2009 to 2016. Crosshatch gridmarks represent the Mid-Atlantic time–area closure for the bottom longline (BLL) fishery in effect from January 1 to July 31 yearly and simple hash gridmarks represent the time–area closures for the pelagic longline (PLL) fishery in effect from February 1 to April 30 (Charleston Bump) while the East Florida Coast is closed year-round