52 



Snake River Spawner-Recruit 



Residuals by Brood for Ricker Cur\/e 



e? 2500 



I 2000 



^ 1500 

 Q 



-1500+' 



1975 1977 1979 1981 1983 1985 1987 1989 

 YEAR 



Figure 13. Residuals of predicted returns for estimated returns versus 

 escapement of all spawners past Lower Granite Dam, 1975-90 

 brood years. 



