Table 2. — Average weight (in kg) of pink salmon. Values are round weight for net- 

 caught fish, dressed weight for troll-caught fish. 



Table 3. — Indices of brood year abundance of chinook salmon based on net gear 

 catch (in thousands of fish) and ('PIT. (in fish per standardized unit of effort). 







Net-caught fish 















Columbia River catch 









Year 



Area' 20 





Fraser River 2 



Wash 



. Terminal Areas 3 



Brood 









Early 

























year 





Springs 





(Aug.) Falls 



Late (Sept. -Dec.) Falls 



1953 



2.65 





2.83 



























1955 



2.86 





2.92 





2.58 





1953 





88.1 





108.6 







44.3 





1957 



2.43 





2.56 





2.38 





1954 





89.8 





85.4 







39.7 





1959 



2.39 





2.49 





2.35 





1955 





224.1 





126.6 







49.6 





1961 



3.25 





3.86 





3.07 





1956 





164.0 





162.2 







14.2 





1963 



2.30 





2.46 





2.27 





1957 





117.8 





120.4 







24.4 





1965 



2.90 





3.03 





2.91 





1958 





126.8 





78.9 







65.0 





1967 



2.39 





2.50 





2.32 





1959 





77.0 





78.9 







22.2 





1969 



2.77 





2.87 





2.65 





1960 





64.8 





128.7 







8.1 





1971 



2.34 





2.36 





2.35 





1961 





64.4 





89.6 







26.1 





1973 



2.49 





2.47 





2.47 





1962 



1963 





112.4 

 81.0 





127.2 

 67.6 







31.7 

 31.4 









Troll-caught fish 









1964 





67.2 





107.3 







47.2 



















1965 





93.1 





146.2 







57.1 







C. Elizabeth-C 

 June July 



Johnson 

 August 



C. 



Flattery 





1966 

 1967 





40.6 

 44.8 





112.4 

 121.9 







33.8 

 36.9 





Year 



June 



July 



August 



















1968 





29.1 





50.6 







99.0 





1955 



2.47 



2.41 



2.70 



2.44 



2.73 



2.45 



1969 





63.7 





108.0 







78.3 





1957 



1.56 



1.81 



2.00 



1.69 



1.90 



2.05 



1970 





45.4 





149.6 







102.8 





1959 



1.86 



1.99 



2.15 



1.64 



1.91 



1.98 



1971 





35.3 





93.8 







122.1 





1961 



2.59 



2.39 



2.71 



2.30 



2.63 



2.75 



1972 





112.7 





96.3 







43.4 





1963 



1.67 



1.78 



2.00 



1.67 



1.72 



1.88 





















1965 

 1967 



2.10 

 1.56 



2.37 

 1.94 



2.53 

 2.10 



2.13 

 1.40 



2.55 

 1.85 



2.54 

 2.04 







Puget Sound 







Fraser River' 























1969 



1.85 

 1.47 



2.12 

 1.89 



2.18 

 2.32 



2.00 

 1.48 



2.39 

 1.91 



2.39 

 2.16 



Brood 

 year 



Springs 

 Catch CPUE 



Falls 



Springs 



Falls 



1971 



Catch 



CPUE 



Catch 



CPUE 



Catch 



CPUE 



1973 



1.62 



2.10 



2.28 



1.69 



2.09 



2.38 



1955 



6.5 



2.76 



26.1 



4.25 



46.5 



2.84 



56.7 



1.78 



1975 



1.47 



2.12 



2.44 



1.43 



2.04 



2.44 



1956 



8.3 



3.36 



16.5 



3.35 



54.7 



3.19 



42.8 



2.08 





Areas 21 and 23 



Areas 25-27 





1957 

 1958 



5.0 

 4.0 



2.36 

 2.71 



20.1 



25.5 



3.78 

 4.66 



38.0 



77.4 



2.76 

 4.07 



57.4 

 71.0 



1.84 



Year 



June 



July 



August 



June 



July 



August 



1.51 



1955 



— 



2.64 



2.74 



— 



2.60 



2.69 



1959 



4.2 



2.72 



22.7 



3.88 



63.3 



4.48 



90.8 



2.40 



1957 



1.97 



2.30 



2.04 



1.90 



1.95 



2.25 



1960 



6.1 



2.80 



34.3 



5.10 



49.8 



3.12 



72.2 



2.66 



1959 



1.75 



1.96 



2.02 



1.66 



1.83 



2.04 



1961 



7.8 



2.90 



51.1 



5.20 



47.0 



2.03 



45.4 



2.22 



1961 



2.41 



2.60 



2.58 



2.53 



2.75 



2.78 



1962 



5.1 



2.23 



29.2 



4.26 



57.8 



3.33 



40.6 



2.15 



1963 



1.56 



1.72 



2.13 



2.11 



1.88 



2.56 



1963 



5.4 



2.56 



55.8 



5.43 



56.1 



4.39 



60.3 



2.05 



1965 



2.09 



2.71 



2.59 



1.88 



2.72 



2.54 



1964 



6.0 



2.63 



41.6 



5.47 



71.6 



4.65 



81.6 



3.46 



1967 



1.50 



1.85 



2.00 



1.56 



1.84 



2.04 



1965 



6.9 



2.77 



56.3 



5.96 



46.7 



3.17 



45.2 



2.22 



1969 



1.68 



2.17 



2.46 



1.83 



2.18 



2.39 



1966 



4.1 



2.34 



55.4 



6.90 



49.4 



4.06 



57.7 



2.78 



1971 



1.54 



1.76 



1.99 



1.68 



1.78 



1.93 



1967 



1.7 



1.62 



44.9 



5.63 



76.5 



4.54 



53.7 



1.76 



1973 



1.66 



1.83 



1.97 



1.54 



1.58 



1.86 



1968 



3.5 



2.40 



58.2 



6.78 



55.8 



4.63 



58.8 



2.66 



1975 



1.43 



1.89 



2.29 



1.86 



1.86 



1.95 



1969 



3.6 



2.70 



52.6 



6.82 



46.9 



4.83 



50.1 



2.35 



'August purse seine catch 













1970 



2.3 



2.51 



66.8 



8.76 



43.6 



3.52 



96.2 



3.77 



September 



gill net catch. 













1971 



2.3 



2.89 



66.9 



8.16 



54.0 



3.85 



105.8 



2.54 



'Annual nei 



: catch for P. 



Susan, 



P. Gardner, and Skagit Bay. 







'Includes Point Roberts. 















Point Roberts 

 Fraser River 



Fall chinook salmon 

 Columbia River above 



Bonneville Dam 

 Total Columbia River 

 Puget Sound 

 Point Roberts 

 Fraser River 



1 March-30 June 

 1 March-end of 3d Canadian 

 statistical week in July 



1 August-31 August 



1 August-31 December 

 1 July-31 October 

 1 July-31 October 

 Last Canadian statistical 



week in July through 31 



October 



Since many of the chinook salmon caught at Point Roberts 

 were of Fraser River origin during the years considered, we 

 combined catch and effort data for Point Roberts with those for 

 the Fraser River. Effort was standardized as described for pink 

 salmon, using efficiency factors listed below: 



Spring chinook salmon: 

 Puget Sound 



Point Roberts 



Fall chinook salmon: 

 Puget Sound 



Point Roberts 



Gill net 



1.00 



Set net 



0.90 



Drag seine 



1.64 



Indian trap 



8.79 



Fraser River gill net 



1.00 



Washington gill net 



0.86 



Washington purse seine 



5.44 



Washington reef net 



1.72 



Gill net and set net 



1.00 



Drag seine 



0.91 



Indian trap (1955-61) 



11.02 



(1962-75) 



3.05 



Purse seine 



1.45 



Fraser River gill net 



1.00 



Washington gill net 



0.80 



Washington set net 



1.32 



