10,000 to >1,000,000 individuals
Comments: Total population in the early 1990s was close to 200,000, with nearly half breeding in Great Britain (Reeves et al. 1992). In Canada, pup production was estimated as more than 12,000/year in the mid-1980s; in 1990, more than 11,000 were born on Sable Island; total population in the western north Atlantic is 85,000-115,000 (Reeves et al. 1992).