A total of 168 walleye were tagged and recaptured the same 

 spring at Intake; 8.0 percent of the total number of walleye 

 captured (Table 15) . 



Walleye demonstrated a high return rate to Intake in 

 subsequent springs (Table 16). In 1979, 9% of the walleye captured 

 (excluding same year recaptures) were tagged at Intake the previous 

 year. It is estimated that 33% of the spawning walleye population 

 at Intake was tagged in 1978. This suggests that of the walleye 

 present at Intake during the spring of 1979, 27% were present at 

 this same location during the previous spring. This is a high 

 incidence of return especially considering that neither recruitment 

 nor mortality is accounted for in these figures. 



Most of the walleye tagged at Intake during spring migrated 

 downstream into Garrison Reservoir immediately after the spawning 

 period. Of the 53 walleye tagged at Intake and recaptured the same 

 year during a different season or at a different location, 87, 2, 

 and 11 percent were collected downstream, near, and upstream from 

 the tag site, respectively (Figure 22) . 



Ninety-eight walleye were recaptured in subsequent years after 

 being tagged downstream from Intake diversion (Figure 23) , 76 (78%) 

 of which were recaptured downstream an average distance of 168 

 river km while 5 (5%) moved upstream, all of which were caught in 



70 



