APPENDIX TABLE 2. — The return of male seals and the dead -pup counts, 

 St. Paul Island, year classes 1950-51 and 1953-58 



APPENDIX TABLE 3. —Analysis of variance of deviations from linear 



and quadratic regression of the return of males 



on the dead -pup counts, St. Paul Island 



This data is the same as in the 1961 report^ 

 except for the return of males in 1958. This 

 is now estimated as follows; 



2-year-old kill 1,977 



3- year-old kill 48,458 



4-year-old kill 14,149 



Mortality ages 3 to 4 1,415 



Escapement adjusted for mortality 125 



Total 66,124 



Jhe total has been rounded upwards to 67,000 

 since the escapement estimate is slightly 

 low. 



As shown in the 1961 report,' a quadratic 

 relationship was fitted to the dead-pup counts 

 and the return of males. Analysis of the re- 

 vised data indicates that the quadratic rela- 

 tionship is not preferable to that of a simple 

 straight line. This is seen in appendix table 3. 



1 See text footnote 1, table 33, p. 43. 



'See text footnote 1, table 33, p. 43. 



57 



