1932 ANNUAL REPORT, 1931 59 



are provided at the Provincial Fish Hatchery at Kenora for the handHng of 

 this species to the fry stage for distribution in suitable trout lakes in that district. 

 Whether this introduction will meet with success must still be proven. Should 

 success attend these efforts, the Dorion Trout Rearing Station will be in a 

 position to handle brown trout for distribution in suitable waters of Kenora 

 and Rainy River districts. 



Brown trout distribution increased from 70,500 in 1930 to 900,600 in 1931. 



Rainbow Trout 



The rainbow trout distribution increased from 81,505 in 1930 to 193,925 

 in 1931. No general distribution of this species in the waters of Ontario is 

 contemplated, but a controlled distribution is underway, the locations of which 

 are indicated in Appendix No. 1 of this report. 



At the present time rainbow trout culture is confined to the Normandale 

 Hatchery, where facilities are provided for rearing fingerling fish for distribution. 

 The permanent breeding stock are maintained in a pond on the course of the 

 Normandale stream. 



If the distribution of this species to the larger trout streams and lakes of 

 northern Ontario is undertaken, the Sault Ste. Marie Trout Rearing Station 

 will be in a position to handle this distribution. 



Lake Trout 



The output of the lake trout fry and fingerlings increased from 19,138,002 

 in 1930 to 22.108,900 in 1931. 



During the year a total of 18,179,925 fingerlings were distributed as opposed 

 to 3,928,975 fry. Of the total distribution of fry and fingerlings 20,512,400 

 were deposited in commercially-fished waters and 1,596.500 in game-fish waters. 



Yellow Pickerel (Pike-Perch or Dore) 



The decline in the total number of pickerel distributed in 1931 as compared 

 with the previous year was largely due to the unsuccessful spawn-taking 

 operations at the Manitou Rapids, Rainy River district. The nets were set in 

 places where good catches of fish in proper conditions for spawning had been 

 obtained before. 



Low water conditions existed to a greater extent than in previous springs 

 and this may have had some effect on the course taken by the pickerel, that is, 

 causing them to run in the deeper channel along the American shore. It was 

 observed that the fish remained in swift water where it was impossible to set 

 pound nets on account of the rocky nature of the bottom. It was also observed 

 that very few females were taken; of a total of 200 fish taken in the pound net, 

 10 were females, and the fish in general were much smaller than those which 

 usually constitute the run during the spawning period. An additional dis- 

 advantage at this station was that the eggs matured at different periods. 



Spawn-taking operations for pickerel at Beaverhouse lake. Rainy River 

 district, were successful. The yield from this area in 1930 amounted to 30,000,000 

 eggs and in 1931 to 38,100,000 eggs. Of the total production 110,660,000 were 



