MICHIGAN (Cont. ) 



of the entire Bay were made along with contiuous observations in a portion of 

 the Bay. 



Michigan Department of Conservation cooperating; Lake Huron; began 

 May 1956, continuing; $50, 000; Stanford H. Smith, Leader. 



Address inquiries to: James W. Moffett, as in No. 1 above. 



MINNESOTA 

 Department of Conservation 



1. Yield and Dynamics of a Small Inland Lake Trout Lake 



This study is intended to provide information on dynamics of the fish 

 population, yield to the fishery, and contribution of yearling stocking program 

 to creel com.pared to natural reproduction on a typical inland lake trout lake. 

 Information will be used in development of management plans for other lakes 

 of this type. 



Cook County; began January 1951, to close 1959; Robert E. Schumacher, 

 Leader. 



Address inquiries to: Robert E. Schumacher, 400 Shubert Building, St. 

 Paul, Minnesota. 



2. Rough Fish Removal Study 



This study is intended to determine the level at which rough fish popula- 

 tions must be cropped for effective reduction, and effect of practical levels of 

 removal on game fish populations. An attempt will be made to relate trap net 

 catches to size of rough fish populations and amount available for removal opera- 

 tions. Information on angling success before and after removal operations will 

 be included. 



LeSueur, Steele, and Waseca Counties; began January 1955, to close 1957; 

 W. J. Scidmore, Leader. 



Address inquiries to: W. J. Scidmore, 400 Shubert Building, St. Paul 2, 

 Minnesota. 



3. Investigation of Techniques for the Improvement of Fish Food Culture Methods 



The study will be conducted along four lines of approach all having to do 

 with fertilization. The objectives are as follows: (1) To find the kinds and 

 amount of certain food organisms that can be produced with various types of 

 fertilizers and fertilization methods. (2) To determine the length of tinne 

 necessary for each type of fertilizer to become effective. (3) To ascertain 

 the amount of fertilizer that can be added to a body of water without causing 

 conditions lethal to fish. (4) To evaluate the effect on pond conditions when 

 grass or grain is grown on pond bottoms prior to flooding. 



Waterville; began April 1957, to close 1967; John Dobie, Leader. 



Address inquiries to: John Dobie, 400 Shubert Building, St. Paul 2, 

 Minnesota. 



4. Aquatic Wildlife Surveys 



Complete but concise lake, stream, and river surveys including sounding 

 nnaps are prepared to give the game and fisheries managers information 

 together with recommendations for management of game and fish species. 



Statewide; began 1931, continuing; $120, 000; Henry Swanson, Leader; re- 

 ports available. 



Address inquiries to: Jerome H Kuehn, Supervisor, Survey and Inven- 

 tories Unit, 600 Shubert Building, St. Paul 2, Minnesota. 



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