WAHLE, VREELAND, and LANDER: BIOECONOMIC CONTRIBUTION 



Table 5a. — Number of marked 1965-brood Columbia River coho salmon by release section recovered in the fisheries by year, 



region of capture, and type of fishery, 1967-68. 



Washington nriti<;h c- y 



California Oregon (without Puget Sound " , ^, ., ' , Columbia River 



■D, 4. o J \ Columbia Alaska 



Puget Sound; 



River section and 



*No sampling . 



Table 5b. — Number of marked 1966-brood Columbia River coho salmon by release section recovered in the fisheries by year, 



region of capture, and type of fishery, 1968-69. 



River section and 

 (in parentheses) mark 



British S. E. 



Washington 

 California Oregon (without Puget Sound 



Puget Sound) Columbia Alaska 



Columbia River 



Year 



Com- Com- Com- Com- Com- 



Sport mer- Sport mer- Sport mer- Sport mer- mer- 



clal cial cial cial cial 



Com- 



TOTALS 



Sport Commercial 



cial Main Trlb. Gill Dip 

 net net 



Lower River (Ad-RM) 



Middle River (Ad) 



Upper River (Ad-LM) 



Uppermost River (D-Ad) 



1968 

 1969 





 22 



1968 



1969 191 



1968 

 1969 



1968 

 1969 





 14 







158 







107 911 





 432 





 432 







905 1,578 4,479 2,120 1,865 





 102 





 1+0 







86 662 





 31 





 118 







525 







52 







356 







67 















15 







32 







312 





 9 







1 



TOTALS 



1968 000000 



1969 233 1,205 1,802 6,170 3,179 2,720 2 17 354 



*No sampling. 



20 37 27 16 IOC 



1 35 1,200 74 16,992 



commercial fishery with the percentage of each 

 mark caught in each ocean fishery give an indi- 

 cation of the occurrence of natural marks. After 

 making these comparisons, we noted a prepon- 



derance of Ad-only marks especially in the 

 Oregon sport fishery for the 1965 brood and the 

 California sport and commercial fisheries for 

 the 1966 brood. In these fisheries, we observed 



149 



