MICHIGAN (Cont. ) 



74. Deep Lake Fish Management 



Periodic fish collections are made to study survival and growth of species 

 planted since the lake was poisoned in 1941. The present population is com- 

 posed of bluegills, redear sunfish, largemouth bass, and rainbow trout. 



Oakland County; began 1952, continuing; $380; Walter R. Crowe, Leader; 

 reports available. 



Address inquiries to: As in No. 3 above. 



75. Management of Special Trout Pond 



Various stocking programs are tested by complete creel census and coiints 

 of residual populations after draining. 



Ponds at Hillsdale Hatchery; began 1946, continuing; $2,657; K. G. Fukano, 

 Leader; reports available. 



Address inquiries to: As in No. 3 above. 



76. Experimental Management of Brook Trout Lakes in Upper Peninsula 



The objective is to determine proper management of lakes stocked with 

 brook trout. Results will be determined through creel census. Various stock- 

 ing programs, size limits, and regulations will be tested. 



Trout lakes in Upper Peninsula; began 1953, to close 1961; $21,255; M. G. 

 Galbraith, Jr. , Leader; reports available. 



Address inquiries to: As in No. 3 above. 



77. Development of Rotary Screens 



The purpose of the project is to design a simpler and lighter self-cleaning 

 rotary screen to replace those now in use. 



Hunt Creek Fisheries Research Area; began 1956, closed 1956; $380; M. J. 

 Whalls, Leader; reports available. 



Address inquiries to: As in No. 3 above. 



78. Hatchery Diets 



The objective is to determine the value of various diets through controlled 

 experiments. Results are tested in production hatcheries. 



Trout hatcheries; began 1952, continuing; $380; Leonard N. Allison, Leader; 

 reports available. 



Address inquiries to: As in No. 3 above. 



79. Transportation of Trout 



The objective is to test plastic bags containing water and oxygen as a 

 method of transporting more trout in less space. 



Grayling pathology laboratory; began 1956, closed 1956; $380; Leonard N. 

 Allison, Leader. 



Address inquiries to: As in No. 3 above. 



80. Library of Colored Illustrations of Fish Diseases and Hatchery Procedures 



Through the use of kodachrome photographs illustrations of fish diseases 

 (macro and micro) and hatchery procedures are provided for reference and 

 instruction. 



Grayling pathology laboratory; began 1953, continuing; $380; Leonard N. 

 Allison, Leader; photographs available. 



Address inquiries to: As in No. 3 above. 



81. Fishes of Michigan 



A comprehensive reference book on fishes of the State on their structure, 

 habits, distribution, abundance, etc. with illustrations and keys for general 



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