SUMIMRY 



1. An experiment to determine the effects of tagging xvith disc tags 



on the subsequent life of adult red salmon was conducted on a small 

 creek in western Alaska by stopping all migration to the stream ex- 

 cept for the simultaneous passage of 197 tagged and 197 untagged 

 salmon^ whose further actions were observed on succeeding days. 



2. Within three days, 80 percent of the fish were settled and spawning, 



3. Movement up the stream was virtually the same for tagged as for 

 untagged fish. 



Uo No noticeable difference in spavjning behavior was detected between 

 the tagged and untagged salmon. 



Interior-Duplicating Section, Washington, D.C. 97011 



