1933 ANNUAL REPORT, 1932 15 



their quota providing in all a flow of 4,000 gallons per minute, and the amazing 

 thing is that this is over a distance of a few hundred feet. At this site the Pro- 

 vincial Government has completed a modern, well-equipped rearing plant 

 capable of handling at least one and one-half million fingerling fish. 



Excepting for the larger volume of water at Dorion, which is nearly three 

 times that supplied by the Sault plant, the general plan of the latter station 

 is similar. This plan was outlined in the Department's annual report for 1930. 

 During the year two new ponds were constructed at the Sault Station in order 

 to provide accommodation for various year classes of trout. 



Suitable facilities for holding breeding trout are available at Dorion, Sault 

 Ste. Marie and Normandale. For breeders, the fastest growing and healthiest 

 schools are chosen. The matter of selective breeding is one which demands 

 the best efforts at our command. 



Browx Trout 



The culture of brown trout is confined to ponds at Mount Pleasant and 

 Codrington Trout Rearing Station, where a permanent breeding stock is main- 

 tained. Facilities are available at Kenora hatchery iot handling a limited supply 

 of brown trout eggs for the purpose of stocking certain lake trout waters in 

 Kenora district, on an experimental basis. 



Our stocking policy is restricted to definite locations which ofiicials of the 

 Branch consider suitable. These locations may be briefly described as follows: 



(1) Streams which did contain speckled trout, but which no longer 

 support a significant number of this species at present on account of the 

 open character of the lands adjacent to the streams, which has affected 

 the streams adversely for speckled trout. 



(2) Lake trout lakes without tributary trout streams. 



(3) Lake trout lakes with tributary trout streams suitable for spawning 

 trout. 



4. Regional planting in order to have a complex of diversified conditions 

 for study. 



Distribution of brown trout in the waters of the Muskoka river system in 

 areas where they will not interfere with native speckled trout, is showing results. 



The decrease in the quantity of fingerlings planted, namely, from 900,000 

 in 1931 to 628,060 in 1932 was somewhat counterbalanced by the distribution 

 of 1,100 adults. 



Rainbow Trout 



Rainbow trout distribution increased from 183,000 fingerlings in 1931 to 

 216,235 fingerlings in 1932. The culture of rainbow trout is confined to the lower 

 section of Normandale trout stream. 



Land-locked lakes and heavy northern trout waters are chosen as suitable 

 planting locations. A glance at the present and previous reports will give some 

 idea of the extent of the distribution within comparatively recent years. 



Lake Trout 



The distribution of lake trout in 1931 amounted to 22,108,900 fry and 

 fingerlings as against 16,258,800 in 1932, plus 150,000 eyed eggs. 



