WEST VIRGINIA (Cont. ) 



Kearneysville; began 1953, to close 1957; Ken E. Wolf, Leader; reports 

 available. 



Address inquiries to: Microbiological Laboratory, U. S. Fish and Wild- 

 life Service, Kearneysville, West Virginia. 



2. Fibh Furvmculosis 



Sulfonamides have been widely used for the treatment of this disease dur- 

 ing the past decade. As a result, the sulfa resistant variant of the pathogen has 

 appeared. In order to select the best possible treatment it is necessary to de- 

 termine rapidly to which drugs the pathogen is most susceptible. A method 

 has been perfected for such a purpose. 



Kearneysville; began 1955, closed 1956; S. F. Snieszko, Leader; reports 

 available. 



Address inquiries to: S. F. Snieszko, Microbiological Laboratory, U. 

 S. Fish and Wildlife Service, Kearneysville, West Virginia. 



3. Disease Resistance in the Eastern Brook Trout 



It has been confirmed that there are significant differences in resisteUice 

 to furnuculosis and ulcer disease among strains of brook trout which are 

 maintained at different hatcheries. Such strains were compared under uni- 

 form conditions at Leetown to determine variation in resistance to these 

 diseases. 



Kearneysville; began 1954, closed 1956; S. F. Snieszko, Leader; reports 

 available. 



Address inquiries to: S. F. Snieszko, as in No. 2 above. 



4. Blue-sac Disease 



This project is concerned primarily with the determination of the causes 

 of this disease. 



Kearneysville; began 1955, to close 1957; Ken E. Wolf, Leader; reports 

 available. 



Address inquiries to: S. F. Snieszko, as in No. 2 above. 



5. Cultivation of Fish Tissues in Test Tubes 



Development of tissue culture techniques is under way to aid in the study 

 on the nature of control of infectious diseases. 



Kearneysville; began 1955, indefinite; Ken E. Wolf, Leader. 

 Address inquiries to: S. F. Snieszko, as in No. 2 above. 



6. Diagnostic and Consulting Service 



Diagnostic and consulting service in the field of fish diseases is carried 

 out primarily for the federal fish hatcheries located east of the Mississippi 

 River. When time and facilities permit this service is extended also to state 

 and private hatcheries. Recently a survey on the distribution of kidney 

 disease in trout hatcheries was carried out in the central and northeastern 

 states. 



Kearneysville; continuing; Robert G. Piper, Leader. 



Address inquiries to: S. F. Snieszko, as in No. 2 above. 



7. Trout Stream Ecology 



The objective is to determine the principal factors affecting the produc- 

 tion of trout and other fish in streams of the Shenandoah and Great Smoky 

 Mountains National Parks. 



Studies on water quality and on periphyton are continuing. Inventories of 

 fish populations are made annually on selected watersheds with electro-fishing 



141 



