Page 



21. Counts of dead pups on Polovina flats and Little Polovina before and after tagging, St. 

 Paul Island, 1962 31 



22. Checkmarks overlooked compared to the checkmarks available, male seals, Pribilof 

 Islands, Alaska, 1961-62 34 



23. Tagged male and female seals without checkmarks, St. Paul Island, 1962 34 



24. Homing tendency of male and female seals, by age, Pribilof Islands, Alaska, 1962 ... 35 



25. Homing tendency of male and female seals, by rookery, Pribilof Islands, Alaska, 1962. 35 



26. Dead-pup counts, Pribilof Islands, Alaska, 1962 37 



27. Tag recoveries from dead pups or yearlings reported by the public along the Pacific 

 coast, 1948-62 38 



28. Dead-pup counts, sample areas, St. Paul Island, 1962 38 



29. Percent of complete rookery dead-pup counts represented by sample-area counts, St. 

 Paul Island, 1956-62 39 



30. Comparison of total dead-pup count and sample-areas count, St. Paul Island, 1956-62. 39 



31. Tag-lost to tagged ratio among male seals killed, Pribilof Islands, Alaska, 1960-62 . , 41 



32. Comparisons of tag-lost to tagged ratios, male seals, Pribilof Islands, Alaska 42 



33. Estimates of fall pup population from male tag recoveries, Pribilof Islands, Alaska, 

 year classes 1958-60 43 



34. Pup population estimates and dead-pup counts, Pribilof Islands, Alaska, year classes 

 1953-60 44 



35. Estimates of total pup population, Pribilof Islands, Alaska, year classes 1958-60. ... 44 



36. Estimates of fall pup populations from female kill, Pribilof Islands, Alaska, 13-24 

 August 1962 45 



37. Estimates of the pup population at the time of tagging, St. Paul Island, year class 1962. 45 



38. Mean seal-pup weights approximately one week after tagging, St. Paul Island, 1957-62. 46 



39. Mean seal-pup weights, St. Paul Island, 1962 47 



40. Probability of no difference in weights of tagged and untagged pups, St. Paul Island, 

 1962 48 



41. Increases in mean weights of pups in September and October, St. Paul Island, 1962. . . 49 



42. Live-pup counts, St. Paul Island, 1959-62 50 



Appendix A tables 



1. Postseason escapement of male seals, Pribilof Islands, Alaska, 1962 56 



2. The return of male seals and the dead-pup counts, St. Paul Island, year classes 1950-51 



and 1953-58 57 



3. Analysis of variance of deviations from linear and quadratic regression of the return of 

 males on the dead-pup counts, St, Paul Island 57 



4. The return of male seals and the estimated number of pups bom, St. Paul Island .... 58 



5. Estimates of the pup population, returns estimated from these estimates, and actual re- 

 turn of 3-year-old male seals, St. Paul Island, year classes 1952-58 60 



6. Predicted and actual kill of male seals by 5 August, St. Paul Island, 1962 60 



Appendix B tables 



Male data 



7. Age classification of male seals killed, St. Paul Island, 2 July to 5 August, 13-17 and 

 20-24 August 1962 61 



8. Cumulative age classification of male seals killed, St. Paul Island, 2 July to 5 August, 

 13-17 and 20-24 August 1962 62 



9. Age classification of male seals killed, St. George Island, 2 July to 5 August, 13-17 



and 20-23 August 1962 63 



V 



