BRISTOL BAY SALMON (Oncorhynchus SPP.) - 1979
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ADF&G TECHNICAL DATA REPORT NO. 94 STATE OF ALASKA (Limited Distribution) Bit l Sheffield, Governor BRI STOL BAY SALMON (Oncorhynchus spp. - 1979 A Compilation of Catch, Escapement, and Biological Data By: Henry J. Yuen and Charles P. Meacham August 1983 ALASKA DEPARTMENT OF F I SH AND GAME Don W. Collinsworth P. 0. Box 3-2000, Juneau, Alaska 998U2 Commissioner ADF&G TECHNICAL DATA REPORTS This series of reports is designed to facilitate prompt reporting of data from studies conducted by the Alas-ka Department of Fish and Game, especially studies which may be of direct and immediate interest to scientists of other agencies. The primary purpose of these reports is'presentation of data. Description of programs and data col lection methods is included only to the extent required for interpretation of the data. Analysis is generally limited to that neces- sary for clarification of data collection methods and interpretation of the basic data. No attempt is made in these reports to present analysls of the data relative to its ultimate or intended use. Data presented in these reports is intended to be final , however, some revisions may occasional jy be necessary. Minor revisions will be made via errata sheets. Major revisions will be made in the form of revised reports. BRISTOL BAY SALMON (Oncorhynchus SPP.) - 1979 A COMPILATION OF CATCH, ESCAPEMENT, AND BIOLOGICAL DATA Compi 1ed and Edited by: Henry J. Yuen and Charles P. Meacham Alaska Department of Fish and Game Division of Commercial Fisheries Anchorage, A1 aska August 1983 TABLE OF CONTENTS Page LIST OF FIGURES ............................ i LIST OF TABLES ............................. ii ABSTRACT ................................ v ii i INTRODUCTION .............................. METHODS AND MATERIALS ......................... RESULTS ................................ Sockeyesalmon .......................... 12 Chinooksalmon .......................... 12 Chum Salmon ........................... 12 Pink Salmon ........................... 13 Coho Salmon ........................... 13 NAKNEK-KVICHAKDISTRICT ........................ 13 EGEGIKDISTRICT ............................ 32 UGASHIKDISTRICT ............................ 43 NUSHAGAK DISTRICT ........................... 54 TOGIAKDISTRICT ............................ 95 LIST OF FIGURES Figure Page 1 . Bristol Bay area map ....................... 2 2 . Naknek-Kvichak District commercial fishing boundaries. 1979 ... 15 3 . Egegik District commercial fishing boundaries. 1979 ....... 33 4 . Ugashik District commercial fishing boundaries. 1979 ....... 44 5 . Nushagak-Igushik District commercial fishing boundaries. 1979 . 56 6 . Togiak District commercial fishing boundaries. 1979 ....... 96 LIST OF TABLES Page 1. Bristol Bay sockeye salmon inshore return, by river system, 1979 . 4 2. Bristol Bay sockeye salmon inshore return by ocean age group and river system, 1979 ......................... 5 3. Bristol Bay sockeye salmon inshore return by age group and river system, 1979 ............................ 6 4. Bristol Bay sockeye salmon inshore return (percent) by age group and river system, 1979 ....................... 7 5. Bristol Bay catch and escapement of sockeye salmon by age group and sex with length (mm) and weight (kg), 1979 ............. 8 6. Bristol Bay emergency order fishing periods by district, 1979 ... 9 7. Naknek-Kvichak District commercial salmon catch by species and fishing effort by gear type by period, 1979 ............ 16 8. Naknek-Kvichak District inshore return of sockeye salmon by age group and sex, 1979 ........................ 17 9. Naknek-Kvichak District commercial catch of sockeye salmon by sex and sample period, 1979 ...................... 18 10. Naknek-Kvichak District commercial catch of sockeye salmon by age group, sex, and sample period, 1979 ................ 19 11. Naknek-Kvichak District commercial catch of sockeye salmon by age group and sex with length (mm) and weight (kg), 1979 ........ 20 12. Kvichak River apportioned catch and escapement of sockeye salmon by age group and sex, 1979 ...................... 21 13. Kvichak River daily sockeye salmon escapement counts, 1979 ..... 22 14. Kvichak River escapement of sockeye salmon by sex and sample period, 1979 ................................ 23 15. Kvichak River escapement of sockeye salmon by age group, sex, and sample period, 1979 ........................ 24 16. Kvichak River escapement of sockeye salmon by age group and sex with length (mm), 1979 ......................... 25 17. Branch River apportioned catch and escapement of sockeye salmon by age group and sex, 1979 ...................... 26 18. Naknek River apportioned catch and escapement of sockeye salmon by age group and sex, 1979 ...................... 27 LIST OF TABLES (Continued) Tab1 e Page 19. Naknek River daily sockeye salmon escapement counts, 1979 ..... 28 20. Naknek River escapement of sockeye salmon by sex and sample period, 1979 ........................... 29 21. Naknek River escapement of sockeye salmon by age group, sex, and sample period, 1979 ........................ 30 22. Naknek River escapement of sockeye salmon by age group and sex with length (mm), 1979 ...................... 31 23. Egegik District commercial salmon catch by species and fishing effort by gear type by period, 1979 ................ 34 24. Egegik River catch and escapement of sockeye salmon by age group and sex, 1979 .......................... 35 25. Egegik District commercial catch of sockeye salmon by sex and sample period, 1979 ........................... 36 26. Egegik District commercial catch of sockeye salmon by age group, sex, and sample period, 1979 ................... 37 27. Egegik District commercial catch of sockeye salmon by age group and sex with length (mm) and weight (kg), 1979 .......... 38 28. Egegik River daily sockeye salmon escapement counts, 1979 ..... 39 29. Egegik River escapement of sockeye salmon by sex and sample period, 1979 ........................... 40 30. Egegik River escapement of sockeye salmon by age group, sex, and sample period, 1979 ........................ 41 31. Egegik River escapement of sockeye salmon by age group and sex with length (mm), 1979 ...................... 42 32. Ugashik District commercial salmon catch by species and fishing effort by gear type by period, 1979 ................ 45 33. Ugashik River catch and escapement of sockeye salmon by age group and sex, 1979 ........................... 46 34. Ugashik District commercial catch of sockeye salmon by sex and sample period, 1979 ........................ 47 35. Ugashi k District commercial catch of sockeye salmon by age group, sex, and sample period, 1979 ................... 48 LIST OF TABLES (Continued) Tab1 e Page 36. Ugashi k District commercial catch of sockeye salmon by age group and sex with length (mm) and weight (kg), 1979 .......... 49 37. Ugashik River daily sockeye salmon escapement counts, 1979 .... 50 38. Ugashik River escapement of sockeye salmon by sex and sample period, 1979. .......................... 51 39. Ugashik River escapement of sockeye salmon by age group, sex, and sample period, 1979 ....................... 5 2 40. Ugashik River escapement of sockeye salmon by age group and sex with length (mm), 1979 ...................... 53 41 . Nus hagak-Igushi k District commercial salmon catch by species and fishing effort by gear type by period, 1979 ........... 57 42. Nushagak-Igushik District inshore return of sockeye salmon by age group and sex, 1979 ....................... 58 43. Nushagak Section commercial catch of sockeye salmon by sex and sample period, 1979 ....................... 59 44. Nushagak Section commercial catch of sockeye salmon by age group, sex, and sample period, 1979 ................... 60 45. Nushagak Section commercial catch of sockeye salmon by age group and sex with length (mm) and weight (kg), 1979 .......... 61 46. Igushik Section commercial catch of sockeye salmon by sex and sample period, 1979 ....................... 62 47. Igushik Section commercial catch of sockeye salmon by age group, sex, and sample period, 1979 ................... 63 48. Igushik Section commercial catch of sockeye salmon by age group and sex with length (mm) and weight (kg), 1979 .......... 64 49. Nushagak-Igushik District commercial catch of chinook salmon by sex and sample period, 1979 ................... 65 50. Nushagak-Igushik District commercial catch of chinook salmon by age group, sex, and sample period, 1979 ............. 66 51. Nushagak-Igushik District commercial catch of chinook salmon by age group and sex with length (mm) and weight (kg), 1979 ..... 67 52. Nushagak-Igushik District commercial catch of coho salmon by sex and sample period, 1979 ..................... 68 LIST OF TABLES (Continued) Page 53. Nushagak-Igushik District commercial catch of coho salmon by age group, sex, and sample period, 1979 ................ 69 54. Nushagak-Igushik District commercial catch of coho salmon by age group and sex with length (mm) , 1979 ............... 70 55. Nushagak-Igushik District commercial catch of chum salmon by sex and sample period, 1979 ...................... 71 56. Nushagak-Igushik District commercial catch of chum salmon by age group, sex, and sample period, 1979 ................ 72 57. Nushagak-Igushik District commercial catch of chum salmon by age group and sex with length (mm) and weight (kg), 1979 ....... 73 Wood River apportioned catch and escapement of sockeye salmon by age group and sex, 1979 ..................... Wood River daily sockeye salmon escapement counts, 1979