2.5 



2 2.0 



< 



cr 



o 



o 



_i 



g 1.5 



z 1.0 

 o 



0.5 



WEIGHT 



NUMBERS OF FISH 



,300 



1,200 



1,100 



,000 



900 



800 



700 



X 



- 600 



o 



-\ 500 2 

 < 



o 

 - 400 H 



300 



200 



- 100 



1890 



1920 1930 



YEAR 



1970 



Figure 4.-Commercial catch of sockeye salmon in the Columbia River, 1889-1967. [Data for 1889-1936 from 

 Craig and Hacker (1940), for 1937 from Ward, Robison, and Palmen (1963), and for 1938-67 from Fish Com- 

 mission of Oregon and Washington Department of Fisheries (1938).] 



26 



