“47 ber fede tp tied radiouctivity of plankton at Rongelap Atoll, Tce onper brings ht 1954-1956, tojetner available Caza on the betau-activity OL wo at Moat Rencerap Atoll ror the period 1954-1556 including ragloastivity reported in UWFL-+2 and 42. eiven o. tne asn as voll as tae wet weight basis, he nore consistent on the aun weight basts. Ssuisvs Prero nets of cifverunt mesh sive, Values ure and arc shown to In a comparison of re- no significant difference appraur doin levels or activity between fine and coarse meshe& plankVOM sua Petes: of deaiy cover a 2-5 year period are given for about Boosarpbes. BOSS can Pas foivvuy tn L£o ts eunsicered to nave contributed ly de ovi ae sue. e.abosewetivity boo. Vabtoust. cose wa toed ockuorio eO. Som, lotr. tan ay ova trat oy tac OV une nore.ern, as that of 1354, of 1956. and the The 155¢-55 fallout 24) tne 1356 ani 1:53 fallouts, the abel. a: oemduction ———_- Poaaivat La Ron jpedup Logocon ftrst took up laisse amounts of Pol uct! ivy from the fallous following Brivo detonation at Bikini ATOLL on Naeun 2, 1954. Sines tnen, tne radioactivity nas declined Wie? ody recautively slight uéditions rrom tie two succeeding series et tesmin bibo (Reawins)} ani 1058 (Hardtaex}. oi Li *heic, . ” 2207, Since the writing vbankton ‘iis Leen collected four times, a hoa a : July 1956 and - tad Maven snd Ausist 1353, 96.