26 U. S. BUREAU OF FISHERIES. 



trough used for the purpose was opened, it was found that develop- 

 ment had been arrested at the eyed stage, and it was apparent that 

 the water circulation had not been adequate. 



The distributions from the station consisted of 5,200,000 eyed eggs, 

 delivered to the State of Oregon for the Columbia River, and 28,480 

 fingerlings and 4,100,000 fry, which were liberated in local waters. 



Important items of repair work at the station during the year in- 

 cluded the renewal of sills, flooring, and floor timbers at the west 

 end of the hatchery, the lumber used in this work being sawed on 

 the premises. In 37 days of operation the station sawmill produced 

 some 60,000 feet of lumber, at a cost of $20.23 per thousand feet, 

 including the cost of logging and delivering logs at the mill. A 

 new water-tube boiler was installed and has proved well adapted for 

 the work, the sawmill refuse making satisfactory fuel. 



YES BAY (ALASKA) STATION. 

 [C. H. Van Atta^ Superintendent.] 



The repairs at this station, which prevented active fish-cultural 

 work during 1921, were so far completed at the beginning of the 

 fiscal year 1922 that egg collections were resumed. The spawning 

 season of the sockeye salmon opened August 29, and between that 

 date and September 27 a total of 51,000,000 eggs were collected. 

 During the latter half of the spawning season fishing operations 

 were materially hampered by excessive rains, high-water stages, and 

 a strong river current, making it difficult to handle the seines. The 

 first eggs of the season showed the eye spots by September 27, and 

 by November 1 the entire lot had reached that stage. All fry 

 hatched were held on trays in the hatching troughs until the absorp- 

 tion of the umbilical sac. The first plant was made in Hatchery 

 Creek on April 10, and a considerable amount of salted salmon was 

 distributed along the margins as a food supply. Gill nets were 

 used to keep down the numbers of trout, and the young fish made 

 excellent growth. Further experiments were conducted in main- 

 taining an inclosed section of the river as a feeding area for young 

 salmon, but the results were in no case satisfactory. 



The inclosed arm of McDonald Slough was again used as a rear- 

 ing pond. Two million sockeye-salmon fingerlings No. 1 were placed 

 in this inclosure on May 11, and by July 25 these fish had increased 

 in size approximately 100 per cent. The screens were removed on 

 September 10. In Eiecember further plants of eyed sockeye-salmon 

 eggs to the number of 150,000 were made in Hound Lake and Lake 

 No. 2, though subsequent visits to these lakes in May and June 

 following failed to indicate that any results had followed these or 

 previous plants in either lake. 



In connection with the sockeye-salmon egg collections, 246,000 

 eggs of the humpbacked salmon were taken between August 22 and 

 September 2, producing 210,000 advanced fry for distribution. 



The new water-supply system installed during the previous year 

 functioned satisfactorily, with the exception of a period of un- 

 usually cold weather with low-water stages in the river. During 

 this period anchor ice was a serious source of annoyance, though 



