Table 9. — Count of spring chinook salmon^ Shipperd Falls fishway, 



1954-61. ^ 



■"" Salmon passing through Shipperd Falls fishway prior to 

 August 15 are considered spring chinook. 



2 Fishway completed late in season. No counting conducted 

 during period of spring chinook salmon migration. 



In August 1961, 92 live fish were observed 

 downstream from the hatchery, and in Sep- 

 tember, 4 live fish, 3 dead fish, and 12 redds 

 were counted in this area. Also in September, 

 58 redds and 15 live and 5 dead salmon were 

 found upstream from the hatchery. 



It has been apparent from spawning ground 

 surveys in Wind River that after passing 

 Shipperd Falls many of the fish utilize the 

 excellent spawning areas available to them. 

 Many of the fish remain throughout the summer 

 months in the deep pools of the canyon area 

 downstream from the hatchery. Others either 

 enter the concrete holding pond or utilize the 

 area upstream. Normally, migration past the 

 hatchery is not possible during the low flow 



period of summer and early fall. During this 

 period practically all Wind River water is 

 directed through the hatchery. This results 

 in a nearly dry stretch of river between the 

 hatchery intake and the point where the water 

 returns to the river, a distance of about 

 three-quarters of a mile. If a freshet occurs 

 just prior to spawning time, as it did in 1961, 

 some fish move upstream and proceed past the 

 hatchery outlet. A rack is not installed in 

 Wind River to direct fish to the hatchery. 



Spring chinook salmon counted at Shipperd 

 Falls fishway, presumed to be from 

 liberations of fingerlings at Carson hatchery 

 in period 1955-61, are summarized in 

 table 10. 



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