Table 17. — Estimates of the pup population based on marked-to-unmarked ratios obtained by 

 sampling groups of 100 after shearing, year class 1965, St. Paul Island 



Estimate for Morjovi, excluding south point of rookery is 17,034. 



Table 18. — A comparison of counts and estimates of the pup population on four rookeries, year 



class 1965, St. Paul Island 



Based on samples of 25 pups, 3-4 August. 

 Based on samples of 25 pups, 12-13 August. 

 Based on samples of 100 pups, 2-11 August. 

 Excluding point scju'th of Sea Lion Neck. 



19 



