ALASKA FISHERY AND FUR-SEAL, INDUSTRIES, 1922. 



115 



finished and the harem masters had begun to leave their positions 

 for the hauling grounds to rest and recuperate. As long as the 

 average harem remains large there will be an early loss of harem 

 formation with the consequent influx of idle bulls. In the future 

 the counting dates on St. George Island should be the same as on 

 8t. Paul (July 16 to 20), or if there is no one on St, George available 

 to make the count the census should start on St. Paul July 14 instead 

 of 16, as at present. For the second successive season inclement 

 weather has prevented a harem count on Sivutch rookery. 



Harem and idle bulls and percentage of idle bulls to harem bulls compared to 

 average harem,, Pribilof Islands, 1922. 



Rookery. 



Date. 



Harem 

 buUs. 



Idle 

 bulls. 



Total 

 bulls. 



Per cent 

 idle to 

 harem 

 bulls. 



Average 

 harem. 



St. Paul Island: 



Kitovi 



Lukanin 



Gorbatch 



Ardiguen 



Reef 



Sivutch 



Lagoon 



Tolstoi 



Zapadni 



Little .'-apadni. 

 Zapadm Reef... 



Polovina 



Polovina Cliffs . 

 Little Polovina. 



Morjovi 



VostochnL 



Julv 20 



..do 



July 16 



..do 



..do 



July 20 

 July 19 

 July 16 

 ..do 



do 



July 17 



..do 



..do 



July 18 

 ..do 



158 



96 

 219 



24 

 425 

 '171 

 8 

 365 

 306 

 169 



17 

 174 

 103 



43 

 103 

 803 



10 

 12 

 13 

 3 

 40 

 «27 



52 

 19 

 17 

 50 

 169 



168 

 108 

 232 



27 

 465 

 '198 

 8 

 387 

 336 

 198 



17 

 226 

 122 



60 

 153 

 972 



6.33 

 12.50 



5.94 

 12.50 



9.41 

 15.79 



6.03 

 9.80 

 17.16 



29.89 

 18.45 

 39.53 

 48.54 

 21.05 



37.56 

 36.92 

 64.46 

 41.83 

 59.89 

 47.73 

 34.13 

 53.42 

 52.61 

 52.34 

 29.24 

 50.40 

 38.34 

 35.26 

 3a 04 

 46.46 



TotaL. 



3,184 



July 22 

 July 23 



St. George Island: 



North 



Staraya Artil 



Zapadni ' . . .do. 



South i . . .do 



East Reef , Julv 22 



East Cliffs ...do 



132 

 83 

 21 

 4 

 49 



TotaL 



Total (both islands). 



378 



3,562 



3,677 



15.48 



49.90 



134 

 88 

 21 

 9 

 51 

 90 



L52 

 6.02 



125.00 

 4.08 

 L12 



78.52 

 85.01 

 42.62 



6a 00 



48.57 

 6a 55 



393 



3.97 



7L50 



4,070 



14.26 



52.19 



' Weather had prevented a count of bulls on this rookery since 1920, when the number was 190. Apply- 

 ing the average decrease of harem buUs on all other rookeries on St. Paul Island (10 per cent) there should 

 have been approximately 171 harem bulls in 1922. In the same manner the number of idle bulls is estimated 

 to have been 27. 



AVERAGE HAREM. 



The average harem is computed by dividing the number of cows 

 (females 3 years of age or over) by the number of harem bulls. The 

 number of cows is obtained from the pup count, there being one 

 cow for each pup. 



The following table shows the average harem in 1922 for each 

 rookery, for each island, and for the herd as a whole. For conveni- 

 ence the numbers of cows and harem bulls are also shown. The aver- 

 age harem on St, Paul Island increased from 43.53 in 1921 to 49.90 

 in 1922, on St. George Island from 57.49 in 1921 to 71.50 in 1922, and 

 for the entire herd from 45.19 in 1921 to 52.19 in 1922. 



