876 



Fishery Bulletin 92|4). 1994 



Table 3 



Summary of 1983 brand release and recovery data from groups of zero-age chinook salmon marked and released at 

 McNary Dam and recaptured at John Day Dam. Travel time is the number of days required to traverse the reser- 

 voir from McNary Dam tailrace to John Day Dam. The percentiles were calculated from the passage indices. 



; The passage index is calculated daily as the ratio of the number recovered to the sampling effort and summed over days. Sampling effort was the 



average proportion of the total river flow discharged through Turbine Unit 3 during the 10 hour period li'MHi Otiliil h 

 2 The average river-flow volume and water temperature over the 10-day period following release of the marked group. 



