PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1926 349 



and Game Commission and 525,000 were consigned to the Clackamas station. 

 The fry hatched from the remaining stock were reared to the flngerling size 

 and then liberated on local spawning grounds. 



Roy tic Hirer (Oreg.) substation. — The stock of about 570,000 young brook 

 trout, silver trout, and steelhead salmon on hand at the opening of the year 

 was distributed later, a large percentage being deposited in the Rogue River. 

 All natural conditions being favorable, the work of erecting the head rack 

 on Rogue River was accomplished in June cf the preceding year. On August 

 15 the collection of chinook-salmon eggs was begun, and between that time and 

 the end of September 1,594,000 eggs were secured. In anticipation of the run 

 of silver and steelhead salmon in Big Butte Creek and Elk Creek, racks and 

 traps were built immediately after the close of the Chinook spawning season, 

 and from November 2 to January 8, 2,159,000 silver-salmon eggs were obtained, 

 the collection being about 50 per cent larger than last year's. Due to pro- 

 lunged drought, and consequent low-water stages in Rogue River during the 

 spring, the collection of steelhead-salmon eggs was disappointing, only 436,- 

 900 being secured, a little more than half the number obtained in 1925. The 

 Oregon game commission lent one of its large trucks for making the dis- 

 tribution of the resulting fry, thus greatly facilitating the work. 



Applegate Creek (Oreg.) substation. — The steelhead salmon on hand at the 

 beginning of the fiscal year were liberated during July as No. 2% fingerlings. 

 Silver-salmon operations at this point were seriously affected by an unusually 

 low water level in Applegate Creek, which remained at its ordinary summer 

 stage during most of the spawning season. As the result of a slight rise in 

 the late fall, 735,000 eggs were secured from November 16 to December 29. 

 Shortly after the first of February a decided rise in water level in the creek 

 induced the entrance of a comparatively large run of steelhead salmon, but 

 continuous rains caused the stream to become so swollen that many of the 

 fish escaped over the dam. Between February 18 and April 28, 2.864.000 eggs 

 were collected. On attaining the eyed stage 1,500,000 were distributed to appli- 

 cants and other stations of the bureau. 



Salmon (Idaho) sub-station. — The stock of fish on hand at the beginning of 

 the year was distributed to applicants in July. With the view of intercepting 

 all chinook salmon entering the Lemhi River, racks were built early in May 

 of the preceding year, and during July fish in considerable numbers were in 

 evidence. Spawning operations began on August 17, and eggs were taken 

 regularly from that date to September 4, the yield being 12,000,000, one of the 

 largest collections ever made in the region. The run of salmon in the Pah- 

 simeroi River proved negligible, and the racks and traps which had been erected 

 on that stream early in the fiscal year were removed in September. An 

 attempt made in cooperation with the Idaho Fish and Game Commission to 

 collect steelbead-salmon eggs in the Pahsimeroi River proved disappointing, 

 only 114,000 being secured. Two consignments of rainbow-trout eggs aggre- 

 gating 350.000 were received during May and June, one from the State of 

 Ida bo and one from the main station at Clackamas, Oreg. 



Wind Rircr (Wash.) substation. — Fish-cultural activities at this substation 

 (formerly operated by the State of Washington) were experimental in char- 

 acter, being undertaken with the view of determining the feasibility of con- 

 ducting permanent work in this field. Chinook-salmon spawning operations 

 were in progress from September 19 to October 7. resulting in the collection 

 of 2.298,000 eggs. This total being considerably smaller than the holding 

 capacity of the hatchery, 3,749,000 additional green eggs were transferred from 

 the Little White Salmon hatchery for incubation. Upon development to the 

 eyed stage, shipments aggregating 1,883,000 eggs were forwarded to the Clack- 

 amas station and to the Oregon game commission. The fry hatched from the 

 remaining eggs were liberated in Wind River, and on February 1 the sub- 

 station was closed. Heretofore logging operations have made the entrance of 

 salmon into this stream very difficult; now that such work is virtually at an 

 end there is a prospect that future fish-cultural operations may be followed by 

 satisfactory results. 





