CHINOOK SALMON MARKING, COLUMBIA RIVER 



235 



Table 13. — Chinook salmon marked at Bonneville hatchery during the fall of 19£0, when approxi- 

 mately 13 months old, and recovered during the season of 1924 



' One fish taken near Astoria during February is not included in this table. 

 ' All during May. 



The detailed length and weight data are given in Tables 12, 14, and 15. The 

 average sizes appear in Table 16. These averages can not be relied upon as accu- 

 rately representing the size of the fish at the three ages, because, as has been men- 

 tioned, the individual records are not dependable. The figures for the 5-year-olds 

 (as a result of the large number of data comprising them) probably are quite accurate. 

 The small number of records for the 4-year-olds makes the averages for that age 

 group least dependable. 



T.iBLB 14. — Chinook salmon marked at Bonneville hatchery daring the fall of 1920, when approxi- 

 mately 13 months old, and recovered during the season of 1924 



Length, in incbes (mid-valae of class) 



23.6. 

 26.5. 

 27.6. 

 28.6. 

 29.6. 

 30.5. 

 31.5. 

 32.5. 

 33.5. 

 34.6. 

 35.5. 

 36.6. 

 37.5. 



Length, in inches (mid-value of class) 



Males 



38.5 7 



39.6 ,. 8 



40.6 9 



41.5 rL ^i--i^. h i 



42.6 ::.....: 4 



43.6 - 3 



47.5 - - .-.- 1 



Total I 91 



Average, inches -j 36.7 



-Average, centimeters 93. 2 



Females 



35.2 

 89.4 



Table 15. — Chinook salmon marked at Bonneville hatchery during the fall of 1920, when approxi- 

 mately 13 months old, and recovered during the season of 1924 



