Table 9. --Summary of aerial surveys made in six districts when 

 sea lion populations on land were high, 1957 



District 



Date 



Survey 

 number 



Number of animals 



Actual 

 count 



Visual 

 estimate 



Total 



1 



Total 



106,669 



4,456 111,125 



1 The total numbers of animals are given in tables 1 to 6. For the sake of 

 completeness the numbers of estimated animals have been given. Fogging of one 

 roll of film taken in the Prince William Sound-Kenai district made it necessary to 

 use estimated figures for some rookeries, including Wooded Island. 



Table 10. --Sea lion counts on western Aleutian Islands, 

 May to September, 1956-58 



Island and rookery 



Year 



Visual estimate from 

 tagging boats 



350 



30 

 1,000 



200 

 50 

 300 

 300 

 200 



50 



50 



125 

 75 



550 



150 

 100 

 200 



775 

 75 



15 

 4.595 



15 



