SEAWARD MIGRATION OF CHINOOK SALMON. 



23 



Table 17. — Young Chinooks prom Under Cannery, Astoria, Oreg., Oct. 17, 1915. 

 specimens without intermediate growth. 



SPECIMENS WITH INTERMEDIATE GROWTH. 



Four young chinooks were collected October 22, 191 5, from the Little White Salmon 

 River, Wash. These were taken near the hatchery maintained by the Bureau of Fish- 

 eries, which is about a half mile above the point where the Little White Salmon enters 

 the Columbia River. These four fish are all females and average 92.5 mm. in length. 

 The average number of rings on the scales is 15.8, and the average length of the ante- 

 rior radius of the scales, 52.5. There is no indication of wider marginal rings on the 

 scales of these fish. 



