MINNESOTA 

 Department of Conservation, Division of Fish and Game 



1. Yield and Dynamics of a Lake Trout Lake. 



Information on yield, fish mortality and population structure of a typical trout lake 

 is being gathered with a view toward better management. 



Lake near Grand Marais; began January 1951, indefinite; Donald Franklin, 



Robert E. Schmacher, Aquatic Biologists. 

 Address correspondence to: JohnB. Moyle, Supvr., Fisheries Research Unit, 



355 Shubert Bldg. , St. Paul, Minn. 



2. Development of Better Methods of Pond Management for Rearing Minnows and 

 Warm-water Game Fishes. 



Better methods of pond management will be determined through detailed studies of 

 pond dynamics, including water and soil chemistry, and fish yield. 



Statewide; began January 1948, continuing; John Dobie, Aquatic Biologist; a bulletin 



on minnow rearing is available. 

 Address correspondence to: John B. Moyle, Supvr. , Fisheries Research Unit, 



355 Shubert Bldg. , St. Paul, Minn. 



3. Development of a Better Trout Diet. 



The objective of this project is to determine by experimental feeding the best trout 

 diet for Minnesota hatcheries. 



Statewide; began January 1949, continuing; Robert Schumacher, Aquatic Biologist. 

 Address correspondence to: JohnB. Moyle, Supvr., Fisheries Research Unit, 

 355 Shubert Bldg. , St. Paul, Minn. 



4. Mortality of Adult Walleyes in a Typical Walleye Lake. 



The aim of this study is to determine mortality from and recruitment to the adult 

 walleye population in a typical walleye lake. 



Lake near Grand Rapids; began May 1950, planned for 4 years, some progress 



reports available. 

 Address correspondence to: John B. Moyle, Supvr., Fisheries Research Unit, 



355 Shubert Bldg., St. Paul, Minn. 



5. Survival of Walleye from Fingerlings to Yearlings. 



The objective is to determine the survival rate of planted walleye fingerlings under 

 varying degrees of competition. 



Lake near Brainerd; began September 1951, continuing; John E. Maloney, Aqiiatic 



Biologist; limited number ol progress reports available. 

 Address correspondence to: John B. Moyle, Supvr. , Fisheries Research Unit, 



355 Shubert Bldg. , St. Paul, Minn. 



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