-36Pigure 30 shows for the Belle see
cucumber collections the amount of redioactivity remaining when the samples were
recounted in Mey-June, 1957, related to
time of collection of the semples. Loglog regressions vere calculated excluding the collections at 8 days, as
was dons for declines on the basia that
Piss
Pi
uptake of activity had not yet reached
the deel ines
tissues of
equilibrium. Por time, t, of collection
of semple in days efter May 14, 1954,
t .e Pegressions for goned, guscie, and
integument, respectively, vere:
(1957 :Pig.2)
d/a/g tn 1957 » 5290 t-9.395
a/a/g
im 1957 2720 ¢-9.405
G/a/g in 1957 : 8260 ¢-0.612
with correlation coefficient s
cance, P « 18, PelS, and Pe< 1S,
3
log plot, f
his Table 1
ifi-
respectively.
Thus, the trends for gonad, muscle,
and integument vere dovnverd, while for
gut there was no dis*inct (P>> 10%) up-
31 shows the
ward or downward trend. The slope cf
the line reflects the difference between decline and decay, being steepest
when decline differe moet from decay,
26, 1956
end horizontal vnen the two are equal.
That this difference ves true in @
genere] vev for sea cucumbers at Belle my
be seen by comparing the rates of decline
and docay in Table 18. Decline exceeded
decay most in the case of integument, and
less for the other tissues.
Por sea cucveber integument where the decline slope was
-2.0 and the deca. slope about -1.4, the slope of the log of
the recount in 1997, related to the log of day of collection
after assumed detonation, was -0.6, practically accounting for
the difference between decline and decay slopes.
While videly varying spectre of half lives are possible,
resulting im unpredictable relationships between decline and
decay, 1t is important to note that a fairly constant relationship does exist as shown by these recounts which ere in hareony
with the relationship of decline to decay, especially evident
in the cese of integument.
~
Pre-Nectar collections retained until 1957 about 108 of the
activity meesured vhen first counted, vhile samples taken June-
August, 1954, retained only 2% to S@.
activity tended to cecur sore then
The nighest levels of
36 days after Nectar.
of nearly
followed by s
declt
in slope fros
liver to -1.9
(Table 1).
A
levels vere e
those of inve