WAHLE ET AL 1960-63 BROOD HATCHERY-REARED SOCKEYE SALMON 

 350 — 



m 



i 



i 



i 



I 



I 



i 



I 



^ 



^ 



SAMPLING YEARS 

 THIS STUDY 



I  i I 



i ii i 



^ 



Figure 4.— Columbia River sockeye 

 salmon commercial catch in thousands, 

 as part of the total run. 1957-68. [Data 

 from Fish Commission of Oregon and 

 Washington Department of Fisheries 

 (1968).] 



65 66 67 68 



Table 2— Sampling rate and marks observed in Columbia River commercial fishery for 

 sockeye 1960-63 broods. 



No of marks observed by brood year 

 1960 1961 1962 1963 



265 



287 



16 

 310 



Vone 1-5 (below Bonneville Dam), Zone 6 (above Bonneville Dam) 



235 



