"Northern Fur Seal Research"

The northern fur seal (Callorhinus ursinus) population in the Pribilof Islands Archipelago (on St. Paul and St. George Islands, Figs. 1-3) constitutes approximately 55% of the world population. Smaller breeding colonies are located on the Kuril and the Commander Islands in Russia, Bogoslof Island (Fig. 4) in the southeastern Bering Sea, and San Miguel Island (Fig. 5) off California. The rookeries at San Miguel and Bogoslof Islands probably originated in the late 1950s (DeLong 1982) and 1980 (R.R. Ream, pers. comm.), respectively.

The northern fur seal population in the Pribilof Islands Archipelago constitutes roughly 70% of the world's population with an estimated 919,000 northern fur seals in 2000. Smaller breeding colonies are located on the Kuril Islands in Japan, the Commander Islands in Russia, Bogoslof Island in the southeastern Bering Sea, and San Miguel Island off California. The rookeries at Bogoslof and San Miguel probably originated in 1982 and the late 1950s, respectively.

Between 1911 and 1984, northern fur seal (Callorhinus ursinus) research was conducted by Canada, Japan, Russia, and the United States under the Treaty for the Preservation and Protection of Fur Seals and Sea Otters. Since 1984, studies have been carried out independently by former member nations.

Between 1911 and 1984, northern fur seal (Callorhinus ursinus) research was carried out by Canada, Japan, Russia, and the United States under the Treaty for the Preservation and Protection of Fur Seals and Sea Otters. Since 1984, studies have been carried out independently by cooperating former member nations.

Between 1911 and 1984, northern fur seal research was carried out by Canda, Japan, Russia, and the United States under the Treaty for the Preservation and Protection of Fur Seals and Sea Otters. Since 1984, studies have been carried out independently by cooperating form member nations.

Between 1911 and 1984, northern fur seal research was carried out by Canada, Japan, Russia and the United States under the Treaty for the Preservation and Protection of Fur Seals and Sea Otters. Since 1984, studies have been carried out independently by cooperating former member nations.

Between 1911 and 1984, northern fur seal research was carried out by Canada, Japan, Russia, and the United States under the treaty for the Preservation and Protection of Fur Seals and Sea Otters. Since 1984, studies have been carried out independently by cooperating former member nations.

Between 1911 and 1984, northern fur seal research was carried out of Canada, Japan, Russia, and the United States under the Treaty for the Preservation and Protection of Fur Seals and Sea Otters. Since 1984, studies have been carried out independently by cooperating former member nations.

The population status of northern fur seals Callorhinus ursinus ) on st. Paul Island has been monitored annually since 1911. Annual reports of research on the population status of northern fur seals on all U. s. breeding rookeries (including st. Paul Island) and throughout their pelagic North Pacific and Bering Sea range (Fig. 1) have been published since 1940 excluding, a 3-year break during World War II. This series of publications, first produced by the Marine Mammal Biological Laboratory (later to become the National Marine Mammal Laboratory) represents one of the longest-running documentations of life history patterns and dynamics of a wild animal population. From 1911 to 1984, northern fur seal research was carried out by Canada, Japan, the Soviet Union, and the United States under a convention for the conservation of North Pacific fur seals. Since 1984, studies have been conducted independently, but cooperatively by former member nations.

Scientists from the National Marine Mammal Laboratory have published reports of annual studies of northern fur seals from the Pribilof Islands since 1958, and from San Miguel Island off Southern California since 1968. This document presents the results of research conducted in 1992.