24 DEPARTMENT OF GAME AND FISHERIES No. 9 



The major studies undertaken during the year included an investigation of 

 the vertical distribution of the young of the yellow perch in relation to their 

 availability as food for lake trout. The food of the young perch was studied in 

 order to learn what governed the supply of this important source of trout food. 

 The food was found to consist of 85% Daphnia or water fleas, 10% small insect 

 larvae and 5% sunfish fry. 



Other studies were directed to the production of insects in the lakes and 

 streams from the point of view of their value as food for fish. 



The collection of angling statistics was continued and extended. These figures 

 are now extensive enough to make possible a preliminary estimate of the natural 

 productivity of the Algonquin Park lakes with respect to lake trout. They have 

 also proven their value in following the trend of speckled trout production in Red 

 Rock lake, and have made possible the application of measures designed to keep 

 up production in this important lake. 



During the year about 200 adult lake trout were transferred to Cache lake, 

 some by truck and some by air, with satisfactory ease and economy. Some 2,000,000 

 perch fry, 100,000 lake herring fry, and some minnows were planted in Cache 

 lake. These forage fish were introduced for the purpose of increasing the food 

 for the bass and the lake trout." 



ACKNOWLEDGMENTS 



In conclusion I desire to give expression to my appreciation of the valuable 

 assistance and co-operation rendered the Department from many sources during 

 the year, and more particularly from the various Fish and Game Protective As- 

 sociations as such and the individual members of these organizations. The sphere 

 of activity of these Protective Associations is extending and the interest and 

 influence of the members of these organizations and other sincere sportsmen is 

 sufficiently evident to warrant the assertion that it is practically impossible to 

 estimate the benefits derived by the Department therefrom in our efforts along 

 the lines of providing an efficient administration and supervision of the wild life 

 natural resources of this Province. Such a measure of co-operation encourages 

 us to intensify our endeavours to preserve unimpaired and possibly improve the 

 opportunities which exist in this Province to those who so desire to enjoy such 

 healthly recreation which our fish and game make available. 



It might also be stated that, generally speaking, members of the Staff, both 

 the inside and outside service, have conducted themselves and performed the duties 

 assigned to them in the best interests of the Department and its varied activities. 



All of which is respectfully submitted. 



I am. Sir, 



Your obedient servant, 



D. J. TAYLOR, 



Deputy Minister of Game and Fisheries 

 Toronto, April 12th, 1939. 



