40 FISH AND GAME COMMISSION. 



side of tlie creek to prevent the creek bed from washing out and widen- 

 ing the channel. This was necessary to prevent the high water from 

 allowing the fish to pass around the trap in ascending the creek. During 

 the seasons of normal rainfall, this is one of the best egg- collecting 

 stations in the Klamath River basin. 



KLAMATHON STATION. 



The total take of chinook salmon eggs at this station during the last 

 two seasons was 28,076,000. During November, 1920, a severe rain- 

 storm damaged the racks at this station to such an extent that a large 

 portion of the salmon in the pool between the racks escaped and passed 

 up the river. This materially affected the take of eggs. The take 

 during the fall of 1920, was 8,898,000 eggs, which were hatched at Fall 

 Creek and Mount Shasta hatcheries. 



During the summer of 1921, the piers were repaired and other im- 

 provements made on the racks and during the fall and early winter of 

 1921, 19,178,000 chinook salmon eggs were collected and shipped to 

 Fall Creek Hatchery, Mount Shasta Hatchery and Fort Seward Hatch- 

 ery in Humboldt County. These eggs hatched out in excellent condi- 

 tion and the resulting fry were distributed in the Sacramento, Klamath 

 and Eel rivers. 



The Klamathon Station is now one of the most important .salmon 

 egg-collecting stations in California, as the Klamath River salmon run 

 can be increased by successfully planting several millions of salmon fry 

 in the river each season. It is of vital importance that the salmon 

 run be maintained in the Klamath River, to furnish eggs for the 

 Sacramento, Eel and San Joaquin rivers and this can only be done 

 by keeping high dams out of the river below the Klamathon Station. 



FALL CREEK HATCHERY. 



This station has been a success since it was built. All the salmon 

 and trout fry reared at this station have been planted in excellent 

 condition, except one small lot of salmon fry that became affected with 

 a bacterial disease early this season. Fortunately this lot soon yielded 

 to treatment when the pond was disinfected with the chemicals used for 

 such purposes. 



During 1920 and 1921, the following improvements were made at 

 this station: three ponds completed: pond No. 1, 70 feet by 20 feet; 

 pond No. 2, 115 feet long, 30 feet wide and 4J feet deep ; pond No. 

 3, 116 feet by 65 feet, average depth of 4 feet. These ponds are used 

 for rearing salmon fry. A large settling tank was constructed to remove 

 the sediment from the water supplying the hatchery. 



The pond system has been a success. The temperature of the water 

 and other conditions make the Fall Creek Hatchery an ideal place for 

 the rearing of salmon fry. Several more ponds are needed at this 

 station for this work as soon as the funds are available. 



CAMP CREEK STATION. 



This station has kept up its record as one of the best of our egg- 

 collecting stations. There were 4,100,000 rainbow trout eggs collected 

 during the last two seasons. The following repairs and improvements 

 Avere made since our last biennial report : a large holding tank for 



