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Annual report to the Atomic Energy Commission, 1964
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1964
[PDF-55.31 MB]
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Alternative Title:Radiobiological Laboratory annual report to the Atomic Energy Commission : a cooperative agreement between the Bureau of Commercial Fisheries and the Atomic Energy Commission
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Description:When radiobiological research was raised from the status of a Program to that of a Laboratory in March 1963, it required the organization of the personnel into a number of Programs. This change did not result in a need for any additional administrative staff nor an increase in either allocation or expenditure of funds for administration or maintenance. Research in the Radiobiological Laboratory is now divided into four Programs and a number of related projects within each program. A brief description of the objectives and scope of each Program follows: (1) Estuarine Ecology. Research in the Estuarine Ecology Program is concerned with energy flow in marine organisms and the relationships of energy flow to the rates of movement of radioisotopes in estuarine ecosystems. This involves applying radioisotopic techniques for measuring rates of primary production, factors influencing primary production, and rates of feeding by consumer organisms. In addition to studies on the basic productivity of estuaries, existing levels of radioactivity in estuarine organisms are being assayed so that these levels can be used to determine future changes, if any, of radioactivity in estuarine ecosystems. (2) Biogeochemistry. The Biogeochemistry Program is responsible for research which includes the geochemical aspects of the exchange of radionuclides between sediments and sea water; the passage of radioactive material from sediments to animals; the development of radiochemical techniques; and analysis of the elemental composition of organisms, sediments, and sea water; Biogeochemical studies are also necessary to understand the role of essential elements in the metabolism of estuarine organisms and the cycling of these elements in the estuary. (3) Pollution Studies. The Pollution Studies Program is particularly concerned with the types and amount of radioactivity which might reach man through seafoods as a result of contamination of estuaries from nuclear weapons or disposal of radioactive effluents. Research in this program will include laboratory experiments designed to observe accumulation, retention, and excretion patterns of radionuclides by marine organisms and the cycling of radioactive material through communities maintained in laboratory tanks and in outdoor ponds and natural embayments. (4) Radiation Effects. This program is investigating the effects of internal and external radiation on the morphology and physic3.c>gy of marine organisms. Research includes studies of the effects of radiation on physiology of blood, egg hatching, larval development, and growth of fishes and studies on the quantities of radiation (LD50) required to kill fifty percent of the organisms receiving irradiation. These studies provide data on the effects on marine resources of radioactive wastes from either or both acute and chronic contamination.
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Rights Information:CC0 Public Domain
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Compliance:Library
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