-16- H. New Programs l. Exposure of Salmon Eggs and Larvae to Low-Level Irradiation Supervisor: Lauren R. Donaldson During the fall months 150,000 salmon eggs and their larvae will be exposed to low levels of irradiation from fixed sources. The plan is to expose the embryo during the entire developmental period to 0.5 +r per day. After rearing to migratory size the fish will be marked for release to the sea. A like number of "control" fish will also be released. The impact of the radiation experience will be evaluated on all aspects of the salmon's life, including their repro- ductive capacity and the survival of their progeny. 2. Distribution of Radioactive Materials Ocean from the Supervisor: Hanford Atomic Allyn H. in the Pacific Products Operation Seymour A cooperative effort between the Department of Oceanography and the Laboratory of Radiation Biology is proposed to evaluate the distribution of the waters of the Columbia River in the Pacific Ocean and the radioactivity they transport.

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