‘os , a . SUMMARY OF OPERATIONS ON CONTRACT NO. W-28-094-eng-33 FOR THE MONTH OF SEPTEMBER 1947, I. oO. 2 e ly ee it ! pe “2 . A0z94!: R The basic program of the Applied Fisheries Laboratory at the University of Washington, namely, that of measuring the effect of exposure of aatic organisms in various stages of development contimed, at a somewhat accelerated pace, following the return of the portion of the staff that had been at Bikini as a part of the resurvey unit. CLASHRERWR xSections I and II Arrangements were again completed with the State of Washington, Department of Fisheries to recover the marked fish that are returning from eggs from this year's returns will be removed and fertilized with males with a gimilar radiation background. The young that result will be site, gueees! mona studied to determine the changes, if any, in this, the third, generation. f-Jk Sections III and IV In the fall of 1943 sockeye salmon adults were treated with 100 r Some fish were used as "Controls". Some of the offsprits of these fish were returned to Cultus Lake, B. C. at the normal time for will return from the sea. Any fish obtained will be spawned and their progeny carefully studied for changes, aiding us in the attemoted recovery of these fish, II. falpfe i S jo“ The International Pacific Sockeye Salmon Fisheries Commission are = . wed for Publ) i Open This fall it is e xpected that the survivors a% them to imigrate to the sea. lo Entered By: doses of X-rays. atin): gat:Lye Pes The iyi By adult fish that were exposed to 100 r X-rays or from "Control" fish. 7 Not Authorized for Pubyc Rolease These fish are the offspring of BF jo the sea and entering the Samish River. ae The summaries of the studies completed on the exposure cf plankton organisms to various amounts of X-rays was published in Science. “Section mumbers refer to the Project Chronology Chart, revised January9, 1947. cme DUNE HAUSE DOSARCHIVES |

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