REPORT OF THE FISH AND GAME COMMISSION. 



35 



As in past years, the salmon eggs procured from the United States 

 Bureau of Fisheries have been hatched at this station and the fry 

 carefully reared and fed until they were two or three months old, at 

 which time they were distributed in the Sacramento River and tributary 

 streams near Sisson, and in the Klamath River. In addition, a large 

 number of fry have been held in ponds until they were eight months 

 old. They were then distributed in the Klamath and Sacramento rivers 

 early in the fall. Experience has shown that the best results in salmon 

 culture are to be obtained by rearing several million fry on the upper 



Fig. 15. A view of Mt. Shasta, at the southwestern base of which is situated the_ Sisson 

 Station, the largest hatchery in the state. The snows on this mountain help 

 furnish a pure cold water supply for the hatchery. 



reaches of the Sacramento River where the water is pure and cold 

 and where the fry can be liberated in the headwaters of the Sacramento 

 out of reach of the predatory fishes which infest the river lower down. 



So large a number of trout fry were reared at the Sisson station that 

 two cars had to be employed in the distribution of these fish. A baggage 

 car was rented from the Southern Pacific Company and equipped with 

 a gasoline engine and aerating system (see Figs. 20 and 21). 



It has been found that the retaining of a stock of brood fish in the 

 ponds gives a dependable supply of eggs each year. The take of eggs 

 in the rivers, on the other hand, is variable. The pond system is there- 

 fore being improved. There were on hand in the ponds at the Sisson 

 Hatchery on July 1, 1916, over 300,000 brood fish. 



