Northern fur seals are described as opportunistic feeders. The main components of the diet are fish and squid. Occasionally northern fur seals will feed on birds. The diet is mainly dependent on the availability of prey due to season and location.
Foods eaten include: pollack, herring, lantern fish, cod, rockfish, squid, loons and petrels.
Animal Foods: birds; fish; mollusks
Primary Diet: carnivore (Piscivore )