Table 3. — Principal forage species utilized by fur seals in the eastern North Pacific 

 Ocean and the eastern Bering Sea, 1958-74, by area. 



Location 



Berryteuthis 

 magister 



Pollock 



Atka mackerel 

 Capelin 



Berryteuthis 

 magister 



Gonatopsis 

 borealis 



Capelin 

 Pollock 



E? 



Forage species 



Fish: 



Clupea harengus pallasi 



Engraulis mordax 



Oncorhynchus spp. 



Mallotus villosus 



Thaleichthys pacificus 



Cololabis saira 



Gadidae 



Gadus macrocephalus 



Merluccius productus 



Theragra chalcogramma 



Trachurus symmetricus 



Sebastes spp. 



Anoplopoma fimbria 



Pleurogrammus monopterygius 



Ammodytes hexapterus 

 CephaJopods: 



Loligo opalescens 



Onychoteuthis sp. 



Onychoteuthis borealijaponicus 



Gonatus sp. 



Berryteuthis magister 



Gonatopsis borealis 



Unidentified squid 



Pacific 

 herring 



Capelin 



Berryteuthis 

 magister 



June-October 

 Combined months 



Gonatopsis 

 borealis 



Berryteuthis 

 magister 



Capelin 

 Pollock 



25 50 



Percent 



Gonatopsis 



borealis 



Capelin 



Gadidae 

 Pollock 



September 



Sand lance 



Berryteuthis 

 magister 



F 



Atka mackerel 



i 



i 



Capelin 



i 







25 

 Percent 



IFreq. (percent) 

 Vol. (percent) 



Figure 8. — Principal forage species of northern fur seals in the eastern 

 Bering Sea, 1958-74. 



Loligo opalescens 

 Onychoteuthis sp 



Pacific whiting 

 Anchovy 



Janua 



25 50 75 



Percent 



Loligo opalescens 



March 



i 



Pacific saury 





Pacific whiting 





Anchovy 





25 50 



Percent 



Safalefish 

 Anchovy 

 RocJcfish 

 Pacific whiting 



Loligo opalescens 

 Pacific saury 



Pacific '//tiiting 

 Anchovy 



May 



25 50 75 



Percent 

 January -June 

 combined months 



Onychoteuthis sp. 

 Pacific saury 

 Pacific whiting 



February 



Anchovy 





Jack mackerel 

 Anchovy 



Loligo opalescens 

 Pacific whiting 



April 



- 



1 



25 50 



Percent 





June 



Loligo opalescens 





Jack mackerel 



mm 



Pacific whiting 



^H 



Anchovy 





25 



Percent 



Sablefish 

 Rockfish 

 Salmon 

 Pacific herring 



Salmon 



Pacific herring 



Anchovy 



Rockfish 



Pacific whiting 

 Salmon 



Onychoteuthis sp. 

 Pacific herring 



Capelin 

 Eulachon 

 Sablefish 

 Pacific herring 



February 



Freq. (percenll 

 Vol. (percem) 



Figure 7.— Principal forage species of northern fur seals off California, 1958-66. 



Figure 9.— Principal forage species of northern fur seals off Washington, 

 1958-74. 



