1934 



ANNUAL REPORT, 1933 



19 



by truck and improvement in the efficiency of planting crews, in order that 

 fish shall be carefully and properly deposited in waters definitely known to 

 be suitable. 



During the present fiscal year the biological activities of the Branch 

 were confined chiefly to studies in connection with fish cultural operations 

 at the Department's hatcheries and rearing stations. 



Eighteen hatcheries were operated: four of these were used for the 

 culture of game-fish exclusively; eight performed a dual function, namely 

 for the propagation of both commercial and game fish; and six were used 

 for the culture of commercial fish only. In addition, three major trout 

 rearing stations, three subsidiary trout rearing stations and four rearing 

 locations for small-mouthed black bass were operated during the year. 

 Supplementary to pond culture, bass harvesting operations from three water 

 areas were undertaken. Details of distribution according to species, age, 

 size and quantities are given in the appendices on pages to 



In the following paragraphs devoted to a discussion of various species 

 of fish cultured, the output for the year is compared with distribution for 

 the previous year. 



Dorion Trout Rearing Station, Dorion, Ontario 



Speckled Trout 



The total distribution of speckled trout of all sizes and ages was 

 increased 42.4 per cent, over that of the previous year. In other words, 

 this is equivalent to an increase of 2,148,925. This increase was due 

 mainly to the successful operation of our major and sul)sidiary trout rearing 

 stations. Emphasis is placed on the culture and distribution of fingerlings 

 and larger fish. 



Brown Trout 



Brown trout have been distributed during recent years in rivers and 

 streams which previously contained speckled trout, but which no longer 

 support any appreciable quantity of the species, with the exception probably 



