54 



PISH AND GAME COMMISSION. 



from the Middle Fork of the Kaweah River which has a higher 

 temperature and contains a greater amount of organic matter. The 

 water supply at the old site at Power House No. 1 is taken from the 

 East Fork of Kaweah River and the writer made an examination of 

 the water at this site and found it suitable for hatchery purposes before 

 any attempt was made to establish even a temporary hatchery. The 

 change from the old site to the new site is proving that the w^ater 

 at the new site is not suited for hatchery purposes. No doubt during 

 the fall it will be necessary to move back to the old site and operate 

 there under a tent until more funds are available for the construction 

 of a permanent hatchery which is badly needed in that section. 



The output of this hatchery duing the last two seasons was 435,000. 

 in 1924 we distributed 340,000 and in 1925, 95,000 were planted. The 



Fig. 10. Experimental hatchery on Rush Creek, Mono County, June 1, 

 1925. This temporary hatchery is to be replaced soon by a modern hatchery 

 devoted to the rearing of black-spotted trout. 



small number planted in 1925 was due to the fact that the water supply 

 was accidentally shut off by a shear board getting loose in the intake 

 box and closing the pipe that furnished the water to the hatchery. 

 The fish perished before the foreman in charge was aware of 

 what had happened. There is an electric alarm system connected 

 with the water supply at all the small hatcheries so that if the water 

 is shut off or the flow is diminished, the alarm bell will ring, thus 

 awakening the help, but on the night that the board closed the intake 

 to the supply pipe, the alarm, for some reason unexplained, failed to 

 work and when an hour or so after the accident, the foreman entered 

 the hatchery nearly all the fish were dead. In 1926 while we were 

 experimenting at the new site an extra man was kept so that during 

 times there was danger of the supply of water fluctuating or of algae 

 floating in the water and causing the screens to choke, some one was 

 always on duty. 



