64 FISH AND GAME COMMISSION 



North Fork of the Feather Kiver. The spawning fish ascend the river 

 from Lake Almanor and enter AVarner Creek where a large number of 

 Rainbow eggs were collected each season for the last ten years. The run 

 of fish in all the tributaries of Lake Almanor are, except Hamilton 

 Branch, as large if not larger than they w^ere ten years ago, despite the 

 heavy fishing in Lake Almanor. The total number of eggs collected 

 from Warner Creek Station dnrijig the last two seasons was 2,965,000. 



MUD CREEK EGG-COLLECTING STATION 



This is a comparatively new station. Plans were made several times 

 in the past to install traps in this creek, but the bed of the stream near 

 the mouth where it empties into Lake Almanor made it a difficult 

 problem until the surface of Lake Almanor was raised, backing the 

 water to a higher level where a trap could be installed with safety. 

 This was successfully done two years ago. The total number of eggs 

 taken from this creek during the last two seasons was 1,075,000. 



YOSEMITE HATCHERY 



Successful work has been carried on at this hatchery since it wa.s first 

 operated in the spring of 1927. Owing to conditions of the water, con- 

 siderable skill and care must be exercised by those in charge of the 

 work to get a maximum of results, but during the three seasons that 

 this station has been operated the results have been equal to the average 

 of all fish cultural stations in this state. We have propagated all 

 species of trout that are handled at the California hatcheries, as Avell as 

 a successful hatch of grayling eggs that were received from Montana. 

 The grayling eggs were shipped to the Yosemite Hatchery a.s well as to 

 the Tahoe Hatchery as an experiment to determine whether this species 

 can be successfully introduced into the waters of the high Sierra. 

 Attempts were made several years ago to introduce the grayling and 

 after several years of planting in favorable places no results were 

 obtained except in the ponds at the Mt. Shasta Hatchery. There several 

 thousand were raised to adult size, but the fingerlings and fry planted 

 in a number of streams and lakes were not seen again. The}' were 

 planted in waters that were not inhabited by other species of fishes as 

 well as in streams and lakes in which other species were found, but the 

 work failed to produce any results. We are hoping that this attempt 

 now being made at Tahoe and Yosemite hatcheries will be more suc- 

 cessful. 



Four rearing tanks have been added to the hatchery, grounds 

 improved and show ponds constructed during the past two years. A 

 meat and ice house will be constructed in the near future. A woodshed 

 and garage should be constructed at this hatchery. 



Following is a list of the fish distributed from the Yosemite Hatchery 

 during the seasons of 1928 and 1929 : 



440,700 Rainbow trout. 

 276,000 Loch Leven trout. 

 743,500 Steelhead trout. 

 203,200 Eastern Brook trout. 

 48,000 German Brown trout. 

 203,500 Black Spotted trout. 



