2. Vessels participating in the 1976 Bering Sea demersal fish survey 6 



3. Fishing gear used during the 1976 Bering Sea demersal fish survey 6 



4. Summary of comparisons of ages determined by two age reading specialists 8 



5. Summary of symbols used in the description of analytical procedures 8 



6. Fishing power correction factors for the vessels Anna Marie, Pat San Marie, and Oregon relative to Miller 

 Freeman 9 



7. The five-point scale for stages of gonad condition applied to walleye pollock during the April-June 1976 Bering 



Sea survey 11 



8. Summary of sampling activities during the 1976 Bering Sea surveys 12 



9. Summary of subsampling for processing successful trawl catches during the 1976 Bering Sea surveys 15 



10. List of fish collected in the Bering Sea during the 1976 spring trawl survey 20 



11. Summary of average catch per unit fishing effort of major taxonomic groups in the Bering Sea, 1976 spring 



trawl survey 21 



12. Summary of apparent biomasses of major taxonomic groups in the Bering Sea, 1976 spring trawl survey 22 



13. The 20 most common fish taxa recorded during the spring 1976 Bering Sea demersal trawl survey, in order of 

 percentage frequency of occurrence 31 



14. The 20 most abundant fish taxa recorded during the spring 1976 Bering Sea demersal trawl survey, in order of 

 observed abundance, for all subareas combined 31 



15. The 20 most abundant fish taxa recorded during the spring 1976 Bering Sea demersal trawl survey, in order of 

 observed abundance, subarea 1 31 



16. The 20 most abundant fish taxa recorded during the spring 1976 Bering Sea demersal trawl survey, in order of 

 observed abundance, subarea 2 31 



17. The 20 most abundant fish taxa recorded during the spring 1976 Bering Sea demersal trawl survey, in order of 

 observed abundance, subarea 3 32 



18. The 20 most abundant fish taxa recorded during the spring 1976 Bering Sea demersal trawl survey, in order of 

 observed abundance, subarea 4 32 



19. The 20 most abundant fish taxa recorded during the spring 1976 Bering Sea demersal trawl survey, in order of 

 observed abundance, slope subarea 32 



20. List of taxa included in the analysis of species associations, 1976 Bering Sea spring trawl survey 33 



21 . Estimated biomass and population numbers of walleye pollock by subarea and for all subareas combined, 1976 

 Bering Sea spring trawl survey ' 41 



22. Estimated population size of walleye pollock age groups and year classes within survey subareas, 1976 Bering 



Sea spring trawl survey 43 



23. Proportions of females in the estimated population of walleye pollock by age group and geographical area, 



1976 Bering Sea spring trawl survey 45 



24. Length-weight relationships observed for walleye pollock during the 1976 Bering Sea spring trawl survey, with 

 testing for between-area and between-sex differences 45 



25. Parameters of the von Bertalanffy growth curves for walleye pollock by sex and otolith area, 1976 Bering Sea 



spring trawl survey 46 



26. Estimated sexual maturity schedule for eastern Bering Sea walleye pollock, 1976 spring trawl survey 50 



27. Estimated biomass and population numbers of yellowfin sole in the Bering Sea by subarea and for all subareas 

 combined during April, May, and June 1976 53 



28. Estimated population size of yellowfin sole age groups and year classes within survey subareas of the eastern 

 Bering Sea, 1976 spring trawl survey 55 



29. Proportions of females in the apparent yellowfin sole population by age group and geographical area, 1976 

 Bering Sea spring trawl survey 57 



30. Length-weight relationships observed for yellowfin sole during the 1976 Bering Sea spring trawl survey, with 

 testing for between-area and between-sex differences 57 



31. Parameters of the von Bertalanffy growth curves for yellowfin sole by sex, 1976 Bering Sea spring trawl 



survey 59 



32. Estimated biomass and population numbers of rock sole by subarea and for all subareas combined, 1976 

 Bering Sea spring trawl survey 61 



33. Estimated population size of rock sole age groups and year classes within survey subareas of the eastern Bering 



Sea, 1976 spring trawl survey 61 



34. Proportions of females in the estimated population of rock sole by age group and geographical area, 1976 

 Bering Sea spring trawl survey 62 



35. Length-weight relationships observed for rock sole during the 1976 Bering Sea spring trawl survey, with testing 



for between-area and between-sex differences 62 



36. Parameters of the von Bertalanffy growth curves for rock sole by sex and otolith area, 1976 Bering Sea spring 



trawl survey 66 



37. Estimated biomass and population numbers of flathead sole by subarea and for all subareas combined, 1976 

 Bering Sea spring trawl survey 70 



VI 



