17. The distribution of anchovy subpopulations and total spawning biomass 16 



18. Locations off California where northern fur seals were collected whose stomachs contained Pacific whiting, 

 1958-66 16 



19. Seasonal depth distribution of Pacific whiting 17 



20. Locations off California where northern fur seals were collected whose stomachs contained market squid, 1958-66 ... 17 



21. Locations off California where northern fur seals were collected whose stomachs contained Pacific saury, 1958-66 ... 18 



22. Eastern Pacific stock of Pacific saury 18 



23. Locationsoff California where northern fur seals were collected whose stomachs contained jack mackerel, 1958-66 .. 19 



24. Distribution of the jack mackerel resource 19 



25. Bathymetric distribution of sablefish 20 



26. Locations off California where northern fur seals were collected whose stomachs contained Onychoteuthis sp., 

 1958-66 20 



27. Stations successfully trawled during the 1975 eastern Bering Sea baseline survey 21 



28. Locations where northern fur seals were collected whose stomachs contained walleye pollock, 1958-74 22 



29. Apparent density of walleye pollock in various regions in the eastern Bering Sea and the Gulf of Alaska 24 



30. Locations where northern fur seals were collected whose stomachs contained capelin, 1958-74 24 



31. Locations where northern fur seals were collected whose stomachs contained Atka mackerel, 1958-74 25 



32. Locations where northern fur seals were collected whose stomachs contained Gonatus sp., 1958-74 26 



33. Locations where northern fur seals were collected whose stomachs contained Berryteuthis magister, 1958-74 26 



34. Locations where northern fur seals were collected whose stomachs contained Gonatopsis borealis, 1958-74 27 



35 . Distribution of squids and fish in the stomachs of sperm whales from the Bering Sea and the Gulf of Alaska, 1 960 and 



1963 28 



36. Locations where northern fur seals were collected whose stomachs contained Pacific herring, 1958-74 29 



37. Locations where northern fur seals were collected whose stomachs contained deepsea smelt, 1958-74 29 



38. Locations where northern fur seals were collected whose stomachs contained Pacific sand lance, 1958-74 30 



Tables 



1. Fishes eaten by fur seals in the eastern North Pacific Ocean and eastern Bering Sea, 1958-74, by area 



2. Squids eaten by fur seals in the eastern North Pacific Ocean and Bering Sea, 1958-74, by area 8 



3. Principal forage species utilized by fur seals in the eastern North Pacific Ocean and the eastern Bering Sea, 1958-74, 



by area 9 



4. Food of fur seals off California 11 



5 . Food of fur seals off Oregon 11 



6. Food of fur seals off Washington 12 



7. Food of fur seals off British Columbia 12 



8. Food of fur seals in the Gulf of Alaska 13 



9. Food of fur seals in western Alaska 13 



10. Food of fur seals in the eastern Bering Sea 21 



1 1 . Summary of estimates of absolute population size for eastern Bering Sea walleye pollock 23 



12. Summary of annual catch of walleye pollock from the eastern Bering Sea by trawl fisheries, 1964 to 1979 23 



IV 



