In the first 10 days of September more than 

 half of the seals collected were post partum 

 females. Immature females were five times 

 as abundant as immature males. Two bulls 

 were seen. Seals were again found feeding 

 and resting north and east of Akun Island and 

 southeast of Tigalda Island. Of 33 collected 

 southeast of Tigalda Island, 21 were imma- 

 ture. No seals considered to be traveling 

 were observed in Unimak Pass. 



Three of the five seals collected in the 

 vicinity of Unimak Pass from 11 to 20 Sep- 

 tember were post partum females; the others 

 were immature females. One large bull was 

 seen but not collected. Most of the collecting 

 was done west of Unimak Pass, and the 

 majority of seals collected were immature. 



Only two post partum females were taken 

 in Unimak Pass and vicinity from 21 to 30 

 September. Weather was poor during most 

 of this period. In 1 day of hunting northwest 

 of Unalaska Island, 15 seals were collected, 

 of which 6 were immature. 



From 1 to 10 October female seals, both 

 post partum and immature, were still abun- 

 dant north and northeast of Akun Island. Very 

 few seals were seen in Unimak Pass. 



The first pregnant females were collected 

 on the feeding grounds southeast of Tigalda 

 Island in the latter part of May. During June 

 large numbers of pregnant females were found 

 in the two feeding areas and in Unimak Pass. 

 They comprised 63 percent of the seals 

 collected. 



In July, diminishing numbers of pregnant 

 females moved through the pass. Forty-four 

 percent of the seals collected during the first 

 10 days of July were pregnant. From 11 to 20 

 July, pregnant females comprised only 15 

 percent of the seals collected. The last preg- 

 nant seal was taken 11 August. 



The first post partum female from the 

 vicinity of Unimak Pass was taken 7 July. 

 They appeared in increasing numbers until 

 August. From August until collecting ended 

 in October, post partum females comprised 

 approximately 50 percent of the seals taken. 



The majority were taken on the feeding grounds 

 northeast of Akun Island. A few were found 

 southeast of Tigalda Island. 



Immature females amounted to approxi- 

 mately 25 percent of the seals collected during 

 May and June, 30 percent during July, and 

 34 percent in August, September, and the first 

 part of October. On the feeding grounds south- 

 east of Tigalda Island, 70 percent of the seals 

 collected from July through September were 

 immature females and a similar high per- 

 centage was found north of Unalaska Island 

 in September. 



Nonpregnant mature females were found 

 throughout the season in all collecting areas. 

 No distinct periods of high or low numbers 

 were found. They comprised approximately 

 10 percent of the total seals collected in the 

 Unimak Pass area. 



The first two bulls seen in the Unimak Pass 

 area were found on 25 May about 20 miles 

 southeast of the pass. During the first 20 days 

 of June, nine bulls were seen in Unimak Pass 

 and one, a 9-year-old, was collected. None 

 was seen during the last 10 days of June and 

 the first 10 days of July; however, one 12- 

 year-old bull was collected approximately 60 

 miles southeast of St. George Island on 4 July. 

 In mid-July, two were seen in Unimak Pass; 

 one, a 12-year-old, was collected. Seventeen 

 bulls were seen in Unimak Pass and vicinity 

 in August. Seven that were collected ranged 

 in age from 9 to 14 years. Three bulls were 

 seen in September but none was seen after 

 13 September. 



Young male seals were collected regularly 

 throughout the season. There were no periods 

 of unusual abundance or scarcity. None was 

 collected after 10 September in the Unimak 

 Pass; however, some were taken west of the 

 pass later in September. 



Seals were found in the pass throughout the 

 day regardless of the direction of the 3-knot 

 average tidal currents. Seals with stomachs 

 ranging from full to empty were collected in 

 the pass at all hours of the day. In June when 

 all seals seen in the pass appeared to be 



22 



