238 



BULLETIN OF THE BUREAU OF FISHERIES 



could not be due to error in recognition of the sexes, as the gonads, though small, 

 are distinctly differentiated and independent determinations by the two authors 

 agree in every case. 



Table IS — Chinook-salmon fingerlings marked at Little White Salmon River hatchery dvrino July 



and August, 1920 



The first returns from this experiment were reported during the season of 1923 

 when the fish were in their foiu-th year; 17 were reported from the commercial fishery 

 and 4 were secured in the parent tributary. During the season of 1924, 22 were 

 reported — 14 from the commercial fishery, 7 from the parent tributary, and 1 from 

 the Big White Salmon River egg-taking station. The detailed data are given in 

 Table 19. The average lengths and weights are given in Table 20. 



Table 19. — Chinook salmon marked at Little White Salmon River hatchery during the summer o/ 

 1920, when approximately 10 months old, and recovered during the seasons of 1923 and 1924 



' These dates probably incorrect, Evidence from other sources has shown that observer who reported them made other errors. 



