1932 ANNUAL REPORT, 1931 47 



south shore of the Georgian Bay, bordering the counties of Bruce, Grey and 

 Simcoe. 



Certain shoals off the west shore of the Bruce Peninsula are important 

 spawning grounds for lake trout and in view of the absence of a closed season 

 in this area, the protection of inshore bays, reefs and shoals would give this 

 species an opportunity to spawn unmolested. Such an area should also act 

 as a base for a reserve supply of lake trout from which adjacent and external 

 water-areas might be replenished. From the standpoint of game-fish interests 

 it might be added that certain centres lying within this zone are in the develop- 

 mental stage and are becoming more attractive to the summer resident population 

 each year. 



No commercial fishing licenses have been granted in Colpoy's bay for several 

 years. It is an important reserve ground for lake trout and herring, and also 

 has importance as an angling area. 



Whitefish spawn off the shores from Cape Commodore to \Marton and 

 from Cape Commodore into Owen Sound bay. 



Licenses have not been issued to commercial fishermen in Owen Sound 

 bay for some time south of a line drawn from Presqu'Ile Point to Pine Point, 

 in order to protect and encourage the game-fishing interests. 



With the exception of pound netters between X'ail's Point and Cape Rich 

 during the past year commercial fishermen have been prohibited from fishing 

 inside a mile limit on the shores abutting the townships of St. Vincent and 

 CoUingwood in order to protect the fish inside this limit prior to November 1st. 

 This is important from the standpoint of spawning fish. 



2. Sites for Hatcheries and Rearing Stations 



Twenty-two sites for the possible establishment of hatcheries and rearing 

 stations for trout and bass were studied and reported upon during the year. 

 A number of the requests came from public organizations and individuals who 

 were desirous of developing certain streams and ponds to the greatest possible 

 extent for game-fish. 



The expenses incurred in connection with the examination of private waters 

 where public fishing is prohibited were met by the individual. There is evidence 

 of a more wide-spread public interest in the possibilities of ponds and streams 

 for fish cultural activities. 



3. Removal of Coarse Fish and Transfers of Fish from 

 One Body of Water to Another 



A more intelligent view is abroad regarding the advisability of removing 

 so-called coarse fish from our waters. At present the prevailing attitude appears 

 to be that the subject is, in the main, one for biological inquiry and rightly so. 

 It is unreasonable to remove any species of fish without proper knowledge of 

 the conditions and sufficient proof that they are detrimental. The Department 

 is at the present time chiefly concerned with the removal of predatory fish 

 such as pike from trout waters; for example, the Nipigon river, and ling from 

 game-fish waters; for example, the Rideau lakes and Otter lake and Wolfe lake 

 in Leeds county. Extensive data on the feeding habits of the ling have been 

 collected from the latter sources. 



The removal of quantities of coarse fish, when they are in excessive numbers 

 is warranted, but this must be done with discretion in order not to interfere with 



