Discovery of Northern Fur Seals ( Callorhinus ursinus) Breeding on Bogoslof Island Southeastern Bering Sea

Abstract

A small group of northern fur seals (Callorhinus ursinus) including one male with two females, each with a small pup, and two lone males was discovered on Bogoslof Island, Alaska in the Bering Sea on 20 July 1980. This is the first evidence of breeding on Bogoslof or on any island in the eastern Bering Sea other than the Pribilof Islands. We suggest that these fur seals require breeding islands adjacent to the continental shelf break where they are supported by the pelagic food web characteristic of the oceanic and outer shelf domains.