16
ig -..y.
wre ida OL,
Gompensating tor une additions fron tae 1956 fallout
imperceptibly Steepen tne decline,
thus increasing
Lr punec between decay and decline slopes.
Tle con3sislelut acreriment in JjJecay rate between the two
Plankton simples reculting from pueired tows (last column of
Tuble 2) 4s a pnenomenen of special interest.
As examples, the
pair of samples from Allinginae on Gctober 23, 1955 had decay
Slcepes of -1.5¢ and -1.53 wnile the pair of samples from the same
sagduu on toe following day hao slopes of -1.71 and -1.73; the
ecunts ta January 1575 also snov nearly equal decay rates for the
towS
a
Paired tors.
This untformity !n decay rate for paired plankton
S2;.es5ts uniformivy 1.1 raciochemical compostion at any one
Sane ane loeniity,
but alirrerenc composition in the plankton at
d4r2 ryeut ulies Or Joaslivties.
D.pin: the virsc «e rzars (1754-55) Kabelle Isiand samples
were 2-5 Clines
27956
.§ Mivioactive 2s those from Rongeiap Island.
he
: twins sep'es riisec tne July 3956 values of the Rongelap
Islas. ve gion abeve S1o3e cf Kare@aie, but by July 1957 Rongelap
values ceerineu ve a level far below Kabelle, only to exceed (al-
trounor stenifieantl: ) Hareiie again in Mareh 1958.
of
By August ¢
iv} rFougelap was suite siinificantly higher than Kabelle.
Tne
{allows trom the HYardtacx series is reflected in the higher levels
of as{tivity in August, thuna in March 1958,
fi)