TABLE 17. — Number of seals selected for yearling tagging, by sex 

 and rookery, St. Paul Island, 1962 



[Numbers in parenthesis indicate known-age yearlings] 



•*■ Includes Polovina Sands hauling ground. 

 ^ Includes Tolstoi Sands hauling ground. 



TABLE 18. — Sex ratios among selected and known-age yearlings, 

 St. Paul Island, 1941 and 1961-62 



Year 



Selected yearlings 



Khown-age yearlings 



1941 

 1961 



1962 



23 <?c?:: 100?? (139:: 601) 

 171^^:: 100?? (529:: 310) 



684cf<^::100??(41::6) 



475(?<f::100??(19::4) 



327<^c^::100??(98::30) 



95 centimeters and only six males exceeded 

 100 centimeters. These maximum lengths 

 governed selection of yearlings in 1962. How- 

 ever, three males and four females exceed- 

 ing these limits were tagged because their 

 pelage color was similar to that of known- age 

 yearlings. 



Body lengths of selected and known-age 

 yearling males and females are compared in 

 figure 10. Although the length distribution of 

 selected yearlings correlates closely with 

 that of known-age yearlings, bias may exist 

 as a result of imposing maximum length 

 limits on selected yearlings. 



27 



