416 U. S, BUREAU OF FISHERIES 



From 50,000 black-spotted-trout eggs received from the bureau's 

 station in the Yellowstone Park during the summer of 1923, 25,000 

 fingerlings No. 2 were produced and distributed to applicants In 

 an attempt to till additional demands for this species, egg collections 

 in cooperation with the State were undertaken in the Strawberry 

 Keservoir field early in Jmie, 1924. As a result of this work the sta- 

 tion acquired 600,000 eg s, but their number was so reduced by losses 

 that only 165,000 survived to the eyed stage. 



NEW ENGLAND TROUT AND SALMON STATIONS 



Under this head are included the four stations located in the States 

 of Massachusetts, Maine, Vermont, and New Hampshire, together 

 with several substations. The fijh-cultural work of these stations is 

 addressed primarily to the propagation of trout. Owing to climatic 

 and other adverse conditions the output of the group was consider- 

 ably reduced as compared with that of the preceding year. 



BERKSHIRE (MASS.) STATION 



[G. R. HoFFSES, Superintendent] 



Though the fish-cultural work of this station was concerned with 

 three species of fish, its output for the fiscal year consisted of brook 

 trout and rainbow trout only. Between October 16 and December 

 19, 144,280 brook-trout eggs were collected from brood fish in the 

 station ponds and 102,000 eyed eggs were acquired by purchase from 

 a commercial hatchery in Massachusetts. The station eggs were 

 taken from 245 brood fish, 99 of which wore only 2 years old. The 

 balance were of various ages, but the majority of them were past 

 their prime. The 2-year-old fish produced an average of about 300 

 eggs per fish, while the average from the others amounted to less 

 than 800. As might be anticipated, the eggs were not of high qual- 

 ity and the losses during incubation, and subsequently on fry and 

 fingerling fish, were greater than could reasonably be expected from 

 eggs resulting from more nearl}'" normal parents. Notwithstanding 

 these facts, however, a fair percentage of fingerlings Nos. 1 }4 ^^rid 2 

 was realized. 



The commercial eggs were of exceptionally good quality when 

 received, and they remained in good condition throughout the incu- 

 bation period. The losses sustained in the fry and fingerling stages 

 were also negligible. A number of young fish from this lot of eggs 

 is being reserved to replenish the brood stock. 



Twenty-five thousand rainbow-trout egi;s, received in May from the 

 Michigan State hatchety at Paris, Mich., were also of excellent qual- 

 ity, and from them a high percentage of fingerling fish was produced. 

 One of the most gratifyin ;; features of the year's work was the enth-e 

 absence of disease, which has so frequently become epidemic among 

 the young trout at this station. 



Fifty-four adult small-mouth black bass, received in May from the 

 Cape Vincent (N. Y.) station, were at once distributed in ponds pre- 

 viously prepared for them. Three of these fish died almost immedi- 

 ately after being installed, apparently from injuries received during 

 transportation. Within a few days there were indications of spawn- 

 ing, the fish working on two of the artificial nests provided and on a 

 number of spots of their own selection. However, no eggs had been 



