Science & Data

Northern fur seal pup estimates and Adult Male Counts on the Pribilof Islands, Alaska.

Northern fur seal pup and adult male counts.

Northern fur seal pup estimates

The northern fur seal (Callorhinus ursinus) is harvested commercially by the United States on St. Paul Island of the Pribilof Islands, Alaska, and by the USSR on its Commander and Robben Islands. Japan and Canada, in return for abstention from pelagic sealing, share in these harvests under terms of the Interim Convention on the Conservation of North Pacific Fur Seals. Under this same Convention, all four countries cooperate in an international program of conservation and research on the species.

This online bibliography is based on a 2006 publication which lists northern fur seal (Callorhinus ursinus) literature available up to that time. Additional northern fur seal citations, literature, and related archival information are available in the Marine Mammal Library's Northern Fur Seal Archive and the AFSC Publications Database.

Northern fur seal pup and adult male counts.

Northern fur seals (Callorhinus ursinus, previously referred to as the Alaska fur seal) are found in the North Pacific and Bering Sea.

Northern fur seal adult male and pup counts on the Pribilof Islands. First file contains data from 2007 count. Links to data from other years are below.

Northern fur seal pup estimates

The northern fur seal (Callorhinus ursinus) population in the Pribilof Islands Archipelago (on St. Paul and St. George Islands, Figs. 1-3) makes up approximately 50% of the world population. Smaller breeding colonies are located on the Kuril and Commander Islands in Russia, Bogoslof Island (Fig. 4) in the southeastern Bering Sea, and San Miguel Island (Fig. 5) and the Farallon Islands off California. The rookeries at the Farallon, San Miguel and Bogoslof Islands were probably colonized in 1996 (Pyle et al. 2001), the late 1950s (DeLong 1982) and 1980 (Lloyd et al. 1981), respectively.