WASHINGTON (Cont. ) 



State Department of Fisheries cooperating; Fisheries Center and Issaquah 

 Hatchery; began January 1952, to close February 1954; Lauren R. Donaldson, 

 Leader; reports available. 



Address inquiries to: Lauren R. Donaldson, as in No. 1 above. 



6. Effects of Hatching and Rearing Silver Salmon in Columbia River Water and/or 

 Columbia River Water That Has Passed Through the Hanford Works. 



The eggs of silver salmon were hatched with some of the fish reared in waters 

 pumped from the Columbia River at the Hanford Works, and some were reared in 

 diluted effluent from the plant. 



After incubation and rearing at the Aquatic Biology Building, Hanford Works, 

 the young fish were trucked to the Fisheries Center, where they were held and 

 reared until time for migration. 



The returns from the commercial and sport fishery and those surviving to 

 return to the holding ponds will be studied to evaluate the effects of the exposure 

 to the effluent fronn the Hanford Works. 



General Electric Company cooperating; Hanford Works and Fisheries Center; 

 began October 1951, to close January 1955; $10,000; Lauren R. Donaldson, Leader. 



Address inquiries to: Lauren R. Donaldson, as in No. 1 above. 



7. Absorption of Trace Materials by Aquatic Organisms. 



A study of the absorption of trace materials by aquatic flora and fauna has been 

 carried on at laboratories at the University of Washington, on the Columbia River, 

 and in the Marshall Islands (Pacific Ocean). 



Methods have been developed for measuring the uptake of trace materials and 

 following their transmission about an aquatic environment and in the biotic cycles. 



United States Atomic Energy Commission cooperating; hdqrs. Applied 

 Fisheries Lab; began August 1943, indefinite; $60,000; Lauren R. Donaldson, 

 Leader; reports available. 



Address inquiries to: Lauren R. Donaldson, as in No. 1 above. 



8. Physiology and Morphology of the Eggs and Sperm of Salmonoid Fishes. 



An electron microscope study of the details of the egg and spernn of salmonoid 

 fishes is essential to progress in the knowledge of the genetics of these fishes. 



This project, using the finest equipment yet developed, coupled with good 

 techniques, has contributed greatly to a better understanding of the fertilization 

 and early development of the salmonoids. 



U. S. Atomic Energy Commission cooperating; hdqrs. Applied Fisheries Lab. ; 

 began 1951, to close 1955; $10,000; Frank G. Lowman, Leader; reports available. 



Address inquiries to: Frank G. Lowman, 106 Fisheries Center, University of 

 Washington, Seattle 5, Wash. 



9. Study of the Effect of Temperature Upon the Early Development of Four Races of 

 Chinook Salmon. 



A comparative study of the effect of temperature upon the eggs and young of 

 Chinook salmon from the Sacramento River, Skagit River, Entiat River and Green 

 River is nearing completion. 



By hatching the eggs and rearing the young in waters of controlled tempera- 

 tures an understanding of the temperature requirements of each of the four races 

 is attained. 



U. S. Atomic Energy Commission cooperating; hdqrs. Applied Fisheries 

 Lab. , began September 1953, to close March 1954; $10, 000; Allyn H. Seymour, 

 Leader; reports available. 



Address inquiries to: Allyn H. Seymour, 106 Fisheries Center, University of 

 Washington, Seattle 5, Wash. 



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