LLLINOIS (Cont. ) 



3. Collection of Commercial Fisheries Statistics and River Conditions. 



Fisheries biologists and fish conservation agents are collecting data by 

 personal contact with commercial fishermen in order to obtain accurate com- 

 mercial fisheries statistics and river conditions which have definite values for 

 administration in development and management phases of the over-all fisheries 

 resources in the State. 



Statewide; began January 1953, continuing; $6,000. 



Address inquiries to: Sam A. Parr, as in No. 1 above. 



4. Reconnaissance and Inventory of Waters. 



Field surveys and inventory are being made on all waters of the State with 

 the aim of gaining information that will be of value prinnarily from a sport fish- 

 ing aspect. 



Statewide; began March 1951, indefinite; $4,500. 



Address inquiries to: Sam A. Parr, as in No. 1 above. 



5. Stream and Lake Pollution Investigations. 



The project objectives are to investigate and recommend corrective pro- 

 cedures in order to improve fish habitat and increase fishing to anglers on waters 

 seriously affected by pollution. A fisheries biologist has been assigned to work 

 on water pollution investigation jointly with the Division of Sanitary Engineering 

 in cases in which pollution may adversely affect fish life. Analysis of work per- 

 formed indicates that stronger cases against polluters can be prepared and cor- 

 rective action results from specific studies on fish and aquatic life. 



Sanitary Engineering Division, Public Health Department cooperating; state- 

 wide; began Decenaber 1953, continuing; $7,000; Morris L. Brehmer, Leader. 



Address inquiries to: Sam A. Parr, as in No. 1 above. 



6. Fox Lake Fisheries Investigation. (FA: F-2-R) 



This project involves creel censusing, fish population studies, environmental 

 conditions, and survey of possible access areas for State ownership for the Chain 

 O'Lakes Region in order to aid in the establishment of a sound fisheries program 

 for this area. 



Chain O'Lakes Region, Lake and McHenry Counties; began March 1952, con- 

 tinuing; $18,000; Maurice A. Whitacre, Leader. 



Address inquiries to: Maurice A. Whitacre, Fisheries Biologist, Box 591, 

 Fox Lake, Ul. 



Natural History Survey 



1. Experimental Stocking of Farm Ponds. 



The value of various combinations of fishes in the production of high hook-and- 

 line yields in farm ponds is being investigated. 



Statewide; began 1938, indefinite; $3,000; George W. Bennett, Leader; 

 reports available. 



Address inquiries to: Dr. George W. Bennett, Head, Section of Aquatic 

 Biology, Natural Resources Building, Urbana, 111. 



2. Management of Largemouth Bass at Ridge Lake. 



This study is aimed at finding the factors controlling development of fishable 

 populations of largemouth bass, the relationship of bass to other fishes, and its 

 vulnerability to angling. 



Fox Ridge State Park, Coles County; began 1941, indefinite; $2,000; George W. 

 Bennett, Leader; reports available. 



Address inquiries to: George W. Bennett, as in No. 1 above. 



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