Table A-16. — Primary causes of death among 379 seal pups, by 7-day periods, St. Paul Island, 5 July to 15 August 1968. 



Cause of death 



5-11 

 July 



12-18 

 July 



19-25 

 July 



26 July 

 to 1 Aug. 



2-8 

 Aug. 



9-15 

 Aug. 



Total 



Malnutrition 16 34 33 



Hookworm disease 2 11 19 



Trauma 8 10 



Microbial infection 18 2 



Perinatal complex 7 4 7 



Miscellaneous 3 2 



Undetermined 4 1 3 



Total 41 70 64 



Unsuitable for examination 10 4 4 



Total 51 74 68 



Advanced post mortem degeneration. . 16 17 26 



^ Includes 34 pups, unsuitable for examination, that died before 5 July. 



97 



98 



16 



27 



26 



2 



25 



26 



1 



324 



Y 



379 



112 



-Number- 



Zapadnl 



South 



East Reef 



East Cliffs... 

 Staraya Artil. 

 North 



Jxine 

 21 

 21 

 21 

 21 

 21 

 22 



Total. 



13 

 42 



18 



7 



69 



149 



151 

 225 

 77 

 135 

 183 

 288 



1,059 



606 



193 



344 



186 



97 



122 



132 



881 



607 

 430 

 310 

 397 

 381 

 763 



2,888 



'^ The adult males on St. George Island were not counted by section in June because section boundaries were not es- 

 tablished until July. 



' Class 1 Shoreline - Full-grown males about age 10 and older without females but apparently with established terri- 

 tories at the high tide mark. 



Class 2 Territorial without females - Full-grown males about age 10 and older without females but with established 

 territories on the rookery. 



Class 3 Territorial with females - Full-grown males about age 10 and older with females and established territories 

 on the rookery. 



Class 4 Back fringe - Full-grown and partly grown males about age 7 and older without females and territories that 

 are found along the inland fringe of the rookery. 



Class 5 Hauling ground - Full-grown and partly grown males about age 7 and older without females that are found 

 on traditional hauling grounds. 



Class 3 males were formerly called harem bulls, and Classes 1, 2, 4, and 5 were collectively called idle bulls. 



83 



