PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 19 3 1149 



pleted on November 30, 1929. The building of this road was financed and 

 supervised by the Bureau of Public Roads. Its completion has made possible 

 the use of a truck, thus expediting the station's activities to a considerable 

 extent. 



YES BAY (ALASKA) STATION 

 [A. T. LOOFF, Supcrintenrlont] 



Fish-cultural vpork at this station during the fiscal year 1930 was concerned 

 chiefly with the sockeye salmon, though limited numbers of humpback salmon 

 were also handled. While the egg collections of the first-named species were 

 somewhat below the average, an abundant supply of excellent food material, 

 made available through the cooperation of the New England Fisli Co. of Ketchi- 

 kan, Alaska, permitted the feeding of the fingerlings for a much longer period 

 than has been possible heretofore in this field. The protection afforded the fish 

 from their natural enemies by their increased growth and development before lib- 

 eration should be productive of satisfactory results. Two million four hundred 

 and forty thousand young sockeye salmon carried over from last year's stock, 

 were held in ponds and fed until July 27 and then released as fingerlings No. 

 2 in Lake McDonald. The season's spawn-taking operations yielded 16,095,000 

 eggs of the sockeye salmon and 2,650,000 of the humpback salmon. Of the fry 

 hatched from the former, 330,000 were planted in the hatchery slough as ad- 

 vanced fry, 6,002,000 were released in Lake McDonald in the No. 1 fingerling 

 stage, and 8,000,000 fingerlings No. 2 were being fed in the station ponds when 

 the year closed. On reaching the eyed stage 1,021,000 of the humpback eggs 

 were distributed. The remainder were incubated, producing 1,389,000 fish 

 which were planted in the hatchery slough in the advanced fry stage. 



Owing to the extremely wet climate in this region, walks, building founda- 

 tions, tramways, and in fact all equipment of wood construction are subject 

 to rapid decay. Frequent repairs and replacements are essential to maintain 

 them in first-class condition. Many items of repair of a miscellaneous nature 

 were attended to in the course of the year, one of the most important being the 

 rebuilding of 2,200 feet of pipe-line trestle. The capacity of the station's feed- 

 ing pond system was increased considerably by the extension of feeding walks 

 to the upper portion of the hatchery slough, 



BIRDSVIEW (WASH.) STATION AND SUBSTATIONS 

 [Joseph Kemmeeich, Superintendent] 



Operations in Baker Lake field were conducted throughout the entire year at 

 the five permanently established stations. In addition the Walcotts Slough 

 trap at Brinnon, Wash., was operated from November 25 to December 24 ; and 

 from February 11 to June 27, sockeye salmon rearing operations were in progress 

 at the Lake Crescent State hatchery. Eggs of the five species of Pacific salmon 

 and steelhead wete handled. The run of chum salmon in Duckabush River 

 and in Walcotts Slough was the largest in recent years, and a capacity col- 

 lection of these eggs was made at the Hoods Canal substations. The humpback- 

 salmon egg collection at Birdsview exceeded that of any year since 1907. Egg 

 collections of the other four species handled were below normal, however, and 

 unfavorable weather conditions were partly attributable therefor. The total egg 

 collection at all points amounted to 37,417,500, exceeding by 7,097,700 the 

 take of the previous year, but falling short of the collection in 1928 by 6,320,000. 

 In addition to the eggs collected 7,392,152 were received by transfer from other 

 fields and handled in connection with those taken locally. Eyed eggs to the 

 number of 2,620,500 of the different species were shipped to points in various 

 States, to Hawaii, and to South America. The Birdsview and Quilcene sta- 

 tions cooperated with the Skagit and Jefferson County game commissions, 

 respectively, in hatching and rearing trout. 



Fluke-infested liver was fed In all fields with apparently satisfactory results, 

 and at a considerable saving in cost as compared with former years. Experi- 

 ments were conducted with various foods with the view of ascertaining which 

 would give the best satisfaction in combination with salted salmon. Continued 

 investigation of streams in the Puget Sound watershed was made during the 

 year and considerable information gained concerning the spawning grounds of 

 the Chinook and humpback salmons. Notwithstanding the fact that all streams 



