148 



U. S. BUREAU OF FISHERIES 



Ages of seals killed on Pribilof Islands, calendar year 1925 



1 Cows unavoidably and accidentally killed or found dead. 



Fig. 14.— Fur-seal rookery, St. Paul Island 

 RESERVING OPERATIONS 



The marking of male seals to be reserved for future breeding began 

 on June 11 and ended on July 31. In this period, 15,002 seals, of 

 which 9,354 were 3-year-olds, were marked and released. The 

 remaining 5,648 seals were 4 and 5 years old. 



On St. Paul Island, marking began on June 11 and ended on July 

 31, during which time 7,424 3-year-olds, 2,276 4-year-olds, and 2,212 

 5-year-olds were marked. 



