OFFICIAL USE ORLY of Kabelle (There were no callections ef land crabs made oo Rongelap Talend during the last eurvey). tha general comteainntion on Rongslap is about one<fifth that of Kabelle. The difference in atrastium-0 content my not be ac grat as this, bat einesthese are land crabs it vould. be expected those on Rongelay alent to he lower than on Zabelle Toland. D. Betimeted Puture ofSteutie9O, 1k. Although pescice values have pot been established, there is & discriminatory factor between or/Ca ratio in tin food supply and that found in the bones. Anis) experiments and linited human data suggest, Values af at ieast a factor of two or three. 15. If the Rongelopese are returned to their hone island, their dict vould be supplimented by tepartad (relatively unconteninated) foods, espectally rice. Also, the cisterns would be cleaned cut snd refilled vith fresh water. | 16. Deapite the wide variancesin the dete, analysisof the results from all of the surveys on the Pacific Islands show a general denline of ax” vith time in the food chain (exseyt tho land crabs). AT. Ghe above data ant estimates clearly indicatethetif_ land crabs are eliaimted fron their dist, the satimated future body ‘purden of the Rongelagese vould be substantially less than 100 pus/ of sr” per gram of calctua: Ltaiting the intake of panfamis would further reduce the estimated se”intake. Ry ueane of the contiming medical examinations dsscribed below it vould be possible te note any tendency of untoward accummlation of stromtiun-9 with time, amd appropriate ~9J- 9002050