Figure 19.--Proportion of fur seal stomachs collected in 1962 that contained food, a trace of food, or nothing. 



between 9 and 14 August and two on 2 and 10 

 October, 



Oncorhynchus Sp. (salmon) 



Salmon, not Identified to species, were 

 found in 18 seals, or 1.2 percent of those 

 examined. Nine stomachs from western Alaska 

 contained salmon (3 percent of the total food 

 by volume). Eight of the nine seals were taken 

 30 miles southeast of Unimak Pass, five on 

 20 June. Only 1 of 347 seals collected in 

 Unimak Pass during June, July, and August 

 had salmon in its stomach. Stomachs of eight 

 seals from the Bering Sea contained salmon 

 (6.2 percent of the total food by volume). Six 

 of these seals were collected on the north 

 side of Akutan Pass; four of the six were 

 taken on 6 August. A seal collected 15 miles 

 southwest of St. George Island on 28 August 

 also had fed on salmon. Salmon appeared 



irregularly in stomachs from 18 June to 

 6 September and with one exception, all 

 appeared to be mature. There was no evidence 

 of predation by fur seals on salmon in Unimak 

 Pass. 



Mallotus villosus (capelin) 



Mallotus comprised 56.8 percent of the total 

 food by volume. They were taken by seals 

 through the three subareas, and were found 

 from May to October. Mallotus made up 34.2 

 percent of the total food in western Alaska, 

 90.6 percent in Unimak Pass, and 22.1 per- 

 cent in the Bering Sea. The northern approach 

 to the pass was a favorite feeding area for 

 seals, particularly from July into October, 

 Mallotus were present in large numbers in 

 this locality throughout these months. In the 

 Bering Sea, iWa//otas ranked below TAeragro and 

 squid. 



43 



