NEW YORK (Cont. ) 

 Fish and Wildlife Service, Branch of Fishery Biology 



1. Biology of the Dwarf Sea Lamprey in Cayuga Lake, New York (Proj. 7). 



The objective of this project is to determine the life history of the dwarf sea lampreys 

 in Cayuga Lake where they have long been established for comparison with the 

 populations recently established in the upper Great Lakes. 



Hdqtrs. : Hammond Bay Fishery Lab. , Rogers City, Mich. ; began 1950, completed 



January 1953; Roland L. Wigley, Leader. 

 Address correspondence to: James W. Moffett, Chief, Great Lakes Fisheries 



Investigations, 1220 E. Washington St. , Ann Arbor, Mich. 



2. Vitamin Requirements of Trout (Proj. 33). 



The objective is to determine the vitamin requirements of trout and the synnptoms of 

 deficiencies by means of vitamin test diets and microbiological assays. 



Hdqtrs. : Cortland, N. Y. ; continuing, began 1940. 



Address correspondence to: Arthur M. Phillips, Jr. , Chief, Fish Nutrition Lab., 

 Cortland, N, Y. 



3. Development of Practical Diets for Trout (Proj. 34). 



The objective is to determine the value of various dietary mixtures in terms of 

 growth, cost of production and mortality of the fish. 



Hdqtrs. : Cortland N. Y. ; began 1935, continuing. 



Address correspondence to: Arthur M. Phillips, Jr., Chief, Fish Nutrition Lab. , 



Cortland, N. Y. 



4. Effect of Diet Upon the Chennical Composition of the Trout Body (Proj. 35). 



The objective is to deternnine the effect of the diet upon the fat, protein, and ash 

 content of the trout body so that optinnum levels for the major food groups (fat, 

 protein and carbohydrate) may be tentatively established. 



Hdqtrs. : Cortland, N. Y. ; began 1935, continuing. 



Address correspondence to: Arthur M. Phillips, Jr. , Chief, Fish Nutrition Lab. , 

 Cortland, N. Y. 



5. Use of Radio-active Isotopes in Trout Nutrition Studies (Proj. 37). 



The objective is to study the absorption, utilization, and retention of dissolved 

 minerals and their role in trout nutrition and physiology. 



Hdqtrs.: Cortland, N. Y. ; began July 1951, continuing; Floyd E. Lovelace, Leader. 

 Address correspondence to: Arthur M. Phillips, Jr., Chief, Fish Nutrition Lab., 

 Cortland, N. Y. 



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