WEST VIRGINIA (Cont. ) 



3. Study of the Toxicity of Various Chemical Compounds, Insecticides, and Herbicides 

 on Warm- and Cold-Water Fresh Water Fishes (Proj. 50). 



The objectives are to screen the chemicals toxic to fish, determine the mechanism 

 of action of the most toxic substances, and make practical application of the 

 results. 



Hdqtrs. : Microbiological Lab., Kearneysville, W. Va .; continuing, E. M. Wood, 



Leader. 

 Address correspondence to: S. F. Snieszko, Dir. , Microbiological Lab. , Leetown, 



Kearneysville, W. Va . 



WISCONSIN 

 Conservation Department 



1. Watershed Management (FA: F-l-D in part). 



The concept that improvement of the aquatic environment for fish is co-existent 

 with proper land use by the farmer is the basis for this project. Because of the 

 varied benefits to be derived from this program, cooperative projects between 

 individual landowners and public agencies have received emphasis. Also, 

 separate demonstration areas are being developed by public agencies. 



Statewide; began July 1951, indefinite; $175,000; progress reports are available. 

 Address correspondence to: D. John O'Donnell, Nevin State Fish Hatchery, Madison, 

 Wise. 



2. Evaluation of Lake Trout Stocking in Lake Superior. 



Eggs of lake trout are taken from adult spawners in Lake Superior. These are 



hatched and reared to fingerling and yearling sizes. Various lots are being fin- 

 clipped and planted in Lake Superior to evaluate returns from plantings of this 

 type. 



Bayfield Fish Hatchery and Western Lake Superior; began in 1949, indefinite; $25,000. 

 Address correspondence to: Russell I. Daly, Bayfield, Wise. 



3. Rough Fish Control. 



Removal of carp and sheepshead is effected by state -operated fishing crews and by 

 commercial fishermen operating under contract and supervision. Fish are sold 

 commercially and the proceeds help to defray removal costs. 



Southern Wisconsin; began 1935, continuing; $250,000. 



Address communications to: Nicholas J. Miller, Nevin State Fish Hatchery, 

 Madison, Wise. 



4. Muskellunge Fingerling Stocking. 



This program is an attempt to maintain adequate populations of muskellunge in the 

 face of competition from northern pike and heavy angling pressure. In selected 

 chains of lakes, liberal regulations for northern pike have been coupled with 

 muskellunge stocking to promote an increase in stocks. 



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