OKLAHOMA (Cont. ) 



Statewide; began June 1953, continuing; $20,000; H. A. McCoy, Leader. 

 Address inquiries to: Game and Fish Department, as in No. 1 above. 



5. Pollution Abatement Aid. 



This project was set up to aid the pollution officers of the department in cur- 

 tailing and solving industrial pollution problems. A limnologist is retained 

 full time during the summer months and part time during the rest of the year. 

 Most of the pollution problems are studied by the bio-assay method. 



Began June 1953, continuing; $5 , 000; H. P. Clemens, Leader. 



Address inquiries to: Game and Fish Departnnent, as in No. 1 above. 



University of Oklahonna 



1. The Importance of Gars (Genus Lepisosteus) as Predators of Fishes in Lake 

 Texonna. 



Objectives of the project are to study the movements of gars, by direct 

 observation, and seining and gillnetting, and their food habits by analysis of 

 stomach contents. Particular attention is given to their role as a predator of 

 game fishes. 



Lake Texoma; began June 1953; to close September 1955; Carl D. Riggs, 

 Leader. 



Address inquiries to: Dr. Carl D. Riggs, Director, Biological Survey, 

 University of Oklahoma, Norman, Oklahoma. 



2. Studies on the Life History of the Gizzard Shad, Dorosoma cepedianum. 



To study the life history of the gizzard shad in two impoundments- -Shafer 

 Lake, Indiana, and Lake Texoma, Oklahoma; and to learn as much as possible 

 about such phases as: food and feeding, age and growth, movements, spawn- 

 ing, mortality and causes, etc. 



Shafer Lake, Indiana, and Lake Texoma, Oklahoma; began June 1945, to 

 close September 1956; Carl D. Riggs, Leader. 



Address inquiries to: Carl D. Riggs, as in No. 1 above. 



3. Ecology and Distribution of the Fishes of the Buncombe Creek Area of Lake 

 Texoma. 



The objective of the project is to study the distribution, movements, 

 seasonal fluctuations of abundance, etc. , as revealed by regular periodic col- 

 lections of fishes in the Buncombe Creek area of Lake Texoma. 



Lake Texoma; began June 1953, to close June 1956; Virgil Dowell, Leader. 



Address inquiries to: Carl D. Riggs, as in No. 1 above. 



4. Age and Growth of the Big Mouth Buffalo, Ictiobus cyprinella , and the Smallmouth 

 Buffallo, Ictiobus bubalus, in Lake Texoma^ 



Objective of the project is to collect, by seine, gill net, fyke net, electric 

 shocker, and limited rotenone application, a sufficient number of I. cyprinella and 

 L bubalus to calculate growth, estimate age attained, sex difference in weight 

 and length, etc. 



Lake Texoma; began February 1954, to close June 1955; Ronald E. Elkin, 

 Leader. 



Address inquiries to: Carl D. Riggs, as in No. 1 above. 



5. A Satisfactory Method for Determining Age and Calculating Growth of Gars 

 ( Lepiso steus). 



The project objectives are to examine several different bony structures of 

 the gars ( Lepisosteus ), and to find valid annuli or year marks by which age can 

 be accurately determined and growth caji be calculated. 



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