Lake Trout Rehabilitation 



The lake trout rehabilitation programme for Lake Superior was continued 

 in 1962. This year an estimated total of 508,175 marked lake trout yearlings 

 were planted in Lake Superior from Dorion and Tarentorus trout rearing stations. 

 Approximately 258,175 fish, marked by the removal of the adipyose and right 

 ventral fins, were planted in the Rossport - St. Ignace Island area from the Dorion 

 station. The remainder of the stock, estimated at 250,000 fish, were marked by 

 the removal of the adipose and left ventral fins and planted along the shoreline 

 between the Montreal River and Coldwater Creek from the Tarentorus Hatchery. 



Private Hatcheries 



Nineteen private hatchery operators were issued permits by the Department 

 to sell various game fish species for restocking purposes. These permits, which 

 were provided free of charge, authorized the sale of game fish for restocking 

 only after the proposed planting was approved by the Department. 



Fifteen of the nineteen permittees sold fish but the majority of the sales were 

 made by four of the larger establishments. 



A summary showing the number of plantings and the number of fis's stocked 

 by private hatcheries in 1962 is as follows: 



SUMMARY OF THE DISTRIBUTION OF FISH FROM PRIVATE 

 COMMERCIAL HATCHERIES. 1962 



Species 

 Brook Trout 



Rainbow Trout 



Largemouth Bass 



Smallmouth Bass 

 Blue^Ils 



Special Projects 



I. NET SECTION 



The netting crews operating from Maple conducted test netting projects 

 in various district waters with assistance from local field personnel. Impound- 

 ing gear (trap nets and hoop nets) were used exclusively and all sport and 

 commercially valuable fish were returned to the water after relevant data were 

 recorded. Investigation of fish populations in Sand Lake, Kemptville District; 

 Point au Baril area of Georgian Bay, Parry Sound District; and Rice, Buckhom, 



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