eries management. Included here are brook trout used for 

 bio-assays (determining the toxicity of lampricide to stream 

 fishes) by the Sea Lamprey Control Unit of the federal 

 Department of Fisheries and Forestry. 



Our commitment to the Great Lakes Fishery Commission 

 for the rehabilitation of Lake Superior (500,000 lake trout 

 yearlings annually), following sea lamprey control on these 

 waters, was met by our Dorion and Tarentorus hatcheries. 



On a permissive basis for two years, fall spawning rain- 

 bow trout eggs were imported from western United States 

 by private industry. The oldest stock in the fall of 1969 was 

 still one year short of full maturity. There was thus a short- 

 age of rainbow trout spawn in Ontario, and our fear of 

 importing egg-borne virus diseases resulted in a refusal for 

 further importations. Through co-operative efforts with the 

 private fish hatchery industry, we met the entire demand 

 by providing over 250,000 eyed rainbow trout eggs on a sale 

 basis from our Normandale trout rearing station. It is anti- 

 cipated that this demand on provincial egg stocks will 

 diminish as the brood stock held by the industry matures. 



The visiting public are welcome at our hatcheries seven 

 days a week. Conducted tours, particularly of school chil- 

 dren, are offered to the public, and afford an opportunity 

 to observe spawning, incubation and fish rearing practices. 



The assistance offered to the public, who are interested 

 in everything from developing a private trout hatchery to 

 the reasons why their tropical fish are dying, is becoming an 

 ever increasing part of our work load. Our extension service 

 is generally limited to the giving of advice verbally and by 

 dispensing literature. However, several field visits were co- 

 ordinated to solve particular problems. 



During 1969, there were twenty-nine private fish hatch- 

 eries licensed for the sale of hatchery fish for restocking 

 purposes, and fifty-nine for the sale of hatchery fish for 

 human consumption purposes. The growth of this industry 

 in Ontario appears to be limited only by the availability of 

 good ground waters for the successful culture of trout. 



DOMESTIC OR SPORT FISHING LICENCES 



T\pe ot Licence 



\uml5er ot Licences Sold 

 1%7 1968 1%9 



Non-resident Smelt 5,171 4,870* 



Resident Smelt 5,706 3,941 



Anglers Bait-fish 520 322 



Domestic Dip-net 425 826 



'Includes non-resident how and arrow fishermen. 



6,112* 



4,493 



351 



1,076 



SALE OF ANGLING LICENCES 



Type of Licence 



Non-resident Seasonal 



Non-resident 3-day 



Non-resident Organized Camp 



Resident-Introduced Ian. 1/69 



Resident Provincial Park (discontinued Dec. 31/68) 



Resident Provincial Park Organized Camp (discontinued Dec. 31/68) 



1966 



1%" 



1968 



1%9 



NUMBER OF FISH DISTRIBUTED 



FROM ONTARIO PROVINCIAL HATCHERIES 



Species 



Bass, Largemouth 



Fry 



Fingerling .. 



Yearling 



Adult 



1%7 



1968 



1%9 



25 



