PEOPAGATIOX AND DISTRIBUTION OF FOOD FISHES, 1924 417 



deposited at tlie close of the year, thougli tlie fisli at the time jippeared 

 to be in excellent condition. It is impossible to account for this failure 

 to spawn. Climatic conditions appeared to be favorable, and three 

 dead fish proved on opening to be females with eggs w^ell along toward 

 maturity. It may be that tlie fish were not property segregated as to 

 sex when placed in the ponds. 



CRAIG BROOK (ME.) STATION AND SUBSTATIONS 



[J. D. De Rocher, Superintendent] 



Aside from the work with the Atlantic and humpback salmons, a 

 review of whichmaybe found on page 407 under the heading " Anadro- 

 mous fishes of Atlantic rivers," the operations at tliis group, including 

 the main station at Craig Brook, near the tov,^n of East Orland, Me., 

 and its substations at Grand Lake Stream and Green Lake, Me., in- 

 "volved the landlocked salmon, brook trout, rainbow trout, lake trout, 

 and smelt. The work at all points met with a fair degree of success, 

 and there was a noteworthy increase in the collection of eggs of the 

 valuable landlocked salmon as compared with the preceding year. 



During November a pound net set in Toddy P6nd, near the 

 station, was the means of capturing 74 adult landlocked salmon, 

 from which 34,000 eggs were secured. The bureau has for several 

 seasons past released limited numbers of landlocked salmon fry 

 and fingerlings in this body of water, and the results of the tentative 

 collections, undertaken for the first time during this year, give prom- 

 ise of considerable expansion in the future. In addition to the eggs 

 collected, the State of Maine transferred from its collections at Cari- 

 bou jind Oquossoc, Me., approximately 250,000 eyed eggs and about 

 the same number were transferred from the Grand Lake Stream sub- 

 station. Of these 190,000 were reshipped to other stations of the 

 bureau. State fish hatcherie-, and other points to meet the distribu- 

 tion requirements. The remainder were incubated, the resulting fry 

 entering into the general distribution from the station or remaining 

 on hand at the close of the year. 



Of this species 14,000 eggs were obtained from wild fish in Craig 

 Pond, another body of water conveniently loc<ited and which the 

 bureau is endeavoring to develop as a source of egg supply. About 

 1,208,000 eyed brook-trout eggs were acquired by purchase from 

 commercial breeders, and 50,000 of this lot were reshipped to the 

 substation at Grand Lake Stream. The others were successfully 

 incubated, and the young fish resulting from them entered into the 

 general distributions. 



To meet distribution requirements consignments of eggs of the 

 rainbow trout and lake trout were received by transfer — the former 

 from the Wytheville ( Va.) station and the latter from the Cape Vin- 

 cent ( N. y.) station. The rainbow-trout eggs proved to be an inferior 

 lot and suffered heavy mortality in the course of incubation. 



Some repairs and alterations were made to the old pond system 

 during the year, with the view of providing facilities for the produc- 

 tion of larger numbers of fingerlin^fish. 



Green Lake (Me.) substation. — -For the past two years the fish- 

 cultural work at this p.)int has been confined to the propagation of 

 landlocked salmon and smelt. Pound nets were placed in the lake 

 at the mouth of the principal spawning stream early in November 



