ho From I9I1I through 19ii6, a total of l$j803 spring-run salmon 

 from the Sacramento River was hauled to Deer Creek. Of this number, 

 82 percent, or 12,863^ were successful transfers. The other I8 per- 

 cent died either in transit or soon after being released into the 

 craeko 



5o Beginning in 19hO and extending through 19hQs, a count of the 

 spring run in Deer Creek has been maintained o High water, causing 

 delays in weir installation or necessitating its removal^ has resulted 

 in incomplete counts each year. From 19hO through I9U83 16^237 adult 

 salmon were counted. Because of low water flows and occasional flood 

 hazards in the fall, no attempt has been made to count the fa!ll-run 

 segment of the population, 



60 Salmon transferred and counted at Deer Creek since the 

 beginning of operations total 29^,100. The number each year was as 

 follows 2 I9U0, 268; 19l;l, I27I1 19h2, 1108| 19U3, U781i| 19Uh, 9296| 

 19U5, li867 5 I9U6, liia8| 19U7, 26691 and 19U8, Ul9o 



7o It has been found that the spring-run salmon in Deer Creek 

 distribute themselves well throughout the length of the streamj thus 

 allowing for the best possible utilization of available spawning areas. 

 Fall-run salmon usually use only the lower section of the stream and 

 spavm soon after their entrance from the Sacramento River o 



80 Spawning of the spring run in Deer Creek begins the first of 

 September and lasts until the latter part of October. Spawning usually 

 begins earlier in the upper reaches of the stream and progresses down- 

 stream as water temperatures decrease. In 19U1^ intensive observation 

 during the spawning season and recovery of spent adults revealed that 

 the sex ratio was 1.65 males to 1 female. The average area of 87 

 salmon nests was U2 square feet. 



9« San^jling the downstream migration of young salmon to determine 

 time of movement, peak periods, size of individuals, and magnitude of 

 the movement was begun in I9UI. Method, equipment, and site fished 

 were stabilized in 19il3« From 19U2 through 19U8, a total of 5,626 

 young migrants was captured in 19sl62 hours of fishing effort. The 

 peak period of downstream movement in Deer Creek occurs in February or 

 March, most frequently in March. The bulk of the young fish move out 

 of the creek into the Sacramento River before water temperatures 

 become lethal. A fairly close correlation exists in all years, except 

 19u8, between the number of adult fish counted or successfully trans- 

 ferred each year and the rate of catch of the progeny of these fish 

 the following spring. 



Hi 



