520 



TJ. S. BUREAU OF FIS-HERIBS 



In our own country, for example, it has been known for many y-eara 

 that the salmon that run in certain streams are unusually rich and 

 desirable from the market standpoint. This is true, for instance, 

 in the case of chinooks from the Columbia River and sockcye salmon 

 from the Frasor River. In Alaska it is also true, as the fish in the 

 Copper and Yukon Rivers, for instance, are famous for their high 

 fat content. There has been a tradition in connection with this to 

 the eilect that the fish that run in the longer rivers are considerably 

 richer than those that spawn in the shorter rivers of the coast. Un- 

 fortunately for this theory, however, v^^hich seems to be true in a 

 general way, there are some notable exceptions. For instance, the 

 Chinook salmon that run in the Rogue River on the Oregon coast, 

 the Klamath River on the California coast, and the red salmon in 

 the Quinault River on the Washington coast are unusually rich, 

 yet these rivers are small and can not be classed with majestic streams 

 like the Columbia and Yukon. 



In connection with the detailed study made by Shostrom, Clough, 

 and Clark (1924) on the composition of salmon used for canning on 

 the Pacific coast, sections from 216 individual chinook salmon taken 

 from practically all of the canning districts under the American flag 

 on the Pacific coast were considered in great detail. Table 14 gives 

 a highly condensed summary of this work, referring only to chinook 

 salmon. 



Table 14. — Variations in comj)osilion of *he canned chinook salmon caught in 



various localities 



