Threatened species scientific committee - Conservation advice: Balaenoptera borealis (sei whale)

Abstract

The main factor that is the cause of the species being eligible for listing in the Vulnerable category is its small population size due to being severely impacted by whaling last century and most of this decline occurred in the southern hemisphere. An updated global population assessment indicated that the global population of mature sei whales was estimated to have declined by about 80% over the previous three generation period (-70 years) with no direct evidence of recent increase in the population.