MINNESOTA (Cont. ) 



5. Relationship of Net Catches to Size and Structures of Fish Population and Angling 

 Harvest. 



A study to obtain better methods for evaluation of fish managennent procedures 

 and for interpreting lake survey data is being carried out on 12 lakes scattered 

 over the State. Evaluation of the effectiveness of various types of nets for samp- 

 ling populations, and the relationships between net catches, angling harvest, fish 

 populations and environmental factors are being examined. Data on fish mor- 

 tality and interspecific competition are being gathered. 



Began December 1951, planned for 4 years; reports available. 



Address inquiries to: John B. Moyle, as in No. 1 above. 



6. Lake Inventory and Mapping. 



Detailed information on physical, chemical, and biological characteristics 

 of Minnesota lakes is being gathered for use in fish management. 



Statewide; began 1931, continuing; Charles R. Burrows, Leader. 

 Address inquiries to: John B. Moyle, as in No. 1 above. 



7. Survival of Walleyed Pike Fingerlings to Catchable Size in Lakes. 



The objective of the project is to determine mortality of fingerling walleyes 

 during the two years following stocking. 



Statewide, 24 selected lakes; began June 1953, to close June 1955; John B. 

 Moyle, Leader. 



Address inquiries to: John B. Moyle, as in No. 1 above. 



8. Survival of Marked Walleye Fingerlings to Catchable Size in a Typical Walleye 

 Lake. 



The project objective is to gain experimental evidence on survival of 67, 000 

 fin-clipped walleye from stocking as fingerlings to catchable size. 



Moose Lake, Itasca County; began September 1953, to close September 1956; 

 F. E. Johnson, Leader. 



Address inquiries to: John B. Moyle, as in No. 1 above. 



9. Survey and Evaluation of Minnesota Smallmouth Bass Streams. 



Little work has been done on smallmouth black bass in Minnesota, the sur- 

 vey is designed to evaluate present bass streams. 



Statewide; began June 1954, to close June 1957; Robert E. Schunnacher, 

 Leader. 



Address inquiries to: John B. Moyle, as in No. 1 above. 



10. Re-survey of Minnesota Trout Streams. 



The purpose of survey is to evaluate the changes that have occurred since 

 original trout streann surveys were made about 10 years ago. 



Northeastern and southeastern Minnesota; began June 1954, to close June 1957; 

 Robert E. Schumacher, Leader. 



Address inquiries to: John B. Moyle, as in No. 1 above. 



11. Effect of Rough F.sh Removal Operation on Fish Populations and the Habitat. 



The objective of the project is to study the effect of rough fish removal oper- 

 ations and methods upon game and rough fish populations and on the habitat. 



Southern Minnesota lakes; began November 1953, to close Novennber 1956; 

 W. J Scidmore, Leader. 



Address inquiries to: John B. Moyle, as in No. 1 above. 



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