78 U.S. BUREAU OF FISHERIES 



Complete computation of fur seals, Pribilof Islands, as of Aug. 10, 1932 — Con. 



Class 



St. Paul 

 Island 



St. 

 George 

 Island 



Total 



Surplus bulls, 7 years old and over— Continued 



Breeding bulls of 1931 



Natural mortality, 30 percent 



1931 bulls remaining 1932_ 



Breeding bulls 1932 



1931 bulls remaining deducted. 



Increment of new bulls in 1932. 



7-year-old males computed for 1932. 

 Surplus bulls computed for 1932 



Total theoretical bull stock for 1932 



New increment of breeding bulls deducted. 



Surplus bulls. Aug. 10, 1932 



9,076 

 2,723 



6,353 



10, 208 

 6,353 



3,855 



2,045 

 614 



1,431 



2,229 

 1,431 



798 



11,121 

 3,337 



7,784 



12, 437 



7,784 



5,242 

 2,304 



7,546 

 4,653 



RECAPITULATION 



Class 



Pups 



Cows 



Harem bulls 



Idle bulls 



Yearling females. 

 Yearling males... 

 2-year-old females 

 2-year-old males.. 

 3-year-old males.. 

 4-year-old males.. 



Total 



387, 



387, 



10, 



2, 



107, 



107, 



84, 



81, 



17, 



11, 



Class 



5-year-old males 



6-year-old males 



Surplus bulls 



Total, 1932 



Total, 1931 



Numerical increase, 1932 

 Percent increase, 1932... 



Total 



11,669 

 8,154 

 2,893 



1,219,961 

 1, 127, 082 



92, 879 

 8.24 



o 



