FISHERY BULLETIN: VOL. 86, NO. 2 



AUG JULY JUNE 



1981 



Figure 4. — North-south movements of marked juvenile echo salmon captured 

 in purse seines, May-August 1981. The width of the lines are approximately 

 proportional to the number offish. Numbers at end of arrows indicate number 

 offish captured. Arrows without numbers and thin lines represent single fish. 

 Inshore-offshore movements are not shown. Dashed lines indicate latitudinal 

 extent of sampling. 



nile coho salmon released from hatcheries at 

 about the same time tended to stay together dur- 

 ing their downstream migration in the Columbia 

 River and during early residency in the ocean. 



Oregon Public Coastal Hatcheries 



We captured marked fish originating ft-om pub- 

 lic Oregon coastal hatcheries both north and 

 south of the latitude of ocean entrance in May. A 

 total of five fish were found to the south, while 11 



fish were found to the north in May (Figs. 4-8). 

 With the exception of one coho salmon from the 

 Umpqua River in June 1983 and two from the 

 Rogue River in July 1984 (Figs. 6, 7), the other 25 

 fish taken after May were captured north of 

 where they entered the ocean. Northerly move- 

 ments into Washington waters occurred by June 

 1983 and 1985 (Figs. 6, 8). 



The southward movements of two juvenile coho 

 salmon released from the Rogue River (south of 

 Cape Blanco) and captured off northern Califor- 



184 



