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15 August 1964 year class 26 June 2ctober 3-year-old males 4-year-old male seals adult males Akutan Island Alaska Aleutian Islands August Bering Sea Bureau of Commercial Cape Flattery checkmark collected off Washington Commercial Fisheries count of dead dead pups eastern Aleutian Islands embryos estimate Fiscus flipper sliced fur seal investigations fur seal research fur seals collected George Island hauling grounds hookworm July kill at age kill of 3-year-old kill of males killed and lost killed on St Kitovi larvae Left front flipper nautical miles NEP(east NEP(west northern fur seal November Number Number Number number of pups number of seals ovaries Paul Island pelagic fur seal pregnant Pribilof Islands pup tags Reef Rookery right front flipper Salmonidae seals collected pelagically seals seen seals sighted Sebastodes seen per hour spawning species Table tag recoveries Total U.S. Fish Wildl Unalaska Washington in 1967 weight yearling yolk Zapadni Reef