48 U. S. BUREAU OF FISHERIES. 



from the disease known as "bluesac." In each case, however, after 

 culling out the defective stock no further trouble was experienced, 

 and the distributions of young fish from the three lots of eggs com- 

 prised 296,825 healthy No. 1 and 2 fingerlings, with 34,000 fingerlings 

 on hand at the close of the year. 



From two lots of rainbow-trout eggs — one of 50,000 transferred 

 from the White Sulphur Springs hatchery and another of 6,920 taken 

 from the station fish — 43,900 thrifty fingerlings were produced, of 

 which 2,000 remained on hand at the end of the year. The spawning 

 season of the rainbow trout at this station extended from December 

 22 to January 20. 



CRAIG BROOK ( ME. ) STATION. 



[J. D. Dh Rocher, Superintendent.] 



In addition to the propagation of the Atlantic salmon, for which 

 purpose this station was primarily established, it has an annual out- 

 put of brook trout from eggs purchased of commercial fish-culturists. 

 The distribution of this species for the fiscal year 1921 amounted to 

 1,085,000 fry and 23,625 fingerling fish. The year's distributions also 

 included landlocked salmon fry and fingerlings to the number of 

 43,545, these fish being the product of eggs transferred from Grand 

 Lake Stream. A detailed account of the work with the Atlantic 

 salmon is contained in the section devoted to the anadromous fishes, 

 page 45. 



Having an abundant water supply of excellent quality, this station 

 possesses opportunities for development as a trout-rearing center. 

 At comparatively small cost its capacity may be increased to the 

 point where it will alone adequately meet the requirements of that 

 section of the country. 



GREEN LAKE (ME.) STATION AND SUBSTATION. 

 [John A. Story, Superintendent.] 



Perhaps the most important part of the work of this station is the 

 propagation of the landlocked salmon. Operations addressed to this 

 species are conducted at the main station, a substation at Grand Lake 

 Stream, and an egg-collecting station on Fish River Lakes, the work 

 at the latter point being done on a cooperative basis with the Maine 

 Commission of Inland Fisheries and Game. At Fish River Lakes 

 ogg collections were made from Cross, Eagle, and Square Lakes 

 Thoroughfares, aggregating 525,000. These were all delivered at the 

 State hatchery for eyeing. Under the agreement 250,000 of them 

 were reserved for planting in parent waters, while the remainder 

 were divided equally between the bureau and the State hatcheries 

 after being eyed. The lakes were at high level prior to the spawning 

 season, with but little rain during that period. Under these con- 

 ditions there was but little and a constantly decreasing current over 

 the usual spawning areas. This is thought to have been a factor in 

 the reduced e^g collections, though whether or not it was the most 

 important one it is hardly possible to say. A total of 336 male 

 and 260 female fish were handled during the season, the first being 

 tnken on October 24 and the last on November 9. 



