oe ne ae reyatin SAA NS EOE 8 RE sate we BT
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the samples of water taken in this area was reported in terms of gamma activity making
valid comparisons with Table 2 difficult.
Table 2 compares the compositions of the radioactivity retained by two species of
marine organisnis that wore selec.ed from the golid fraction mentioned in Table 2. Even
from the meager data shown here, it can be seen that there are significant variations in
the amounts and kindsof activity retained.
State and Size of Fission Particles in Sea Water. Table 3 is taken from earlier
laboratory experiments at NRDL by Greendale and Ballou (Reference 3) wherefission
products were vaporized in sea water.
TABLE 1
The four nuclides listed display some tendency tu
BETA ACTIVITIES OF ORGANISMS PROM CASTLE*
§ + Setal feeders, R - Rapacious feeders, T - Tentacular feeders, Parena - Estirasted values.
Sample
F feeding
Organism
No.
Total
Activity
x
Activity
P
o/min
Y-8
Collected
1500
9 May
1954
§
Welaht
mg
19
9,119
920
34.9
2
4,465
a4
s
10
6,243
614
R
R
Rapacious copepods adult
Rapacious copepods
10
10
5,259
2,958
10
10
R
Notivity
c, win/gm
Wet Weight
Rerbdtvorous copepods
(Calanus) adult
Herbivorous mixed
Calanoid copepods
Stylocheiron (Euphaualid)
3
wert
Organism
Activitys
o/min/gm
Dry Weight
mg
18
3.7 x 104
(13.0)
45
0.60
0.99
17.9
al
34
2.9
528
297
15.9
3.8
12
15
33
3.3
44
2.6
6,127
$13
16.8
3
3.6
3,248
2.0
325
9.8
1.3
3.3
2.8
1
248
245
3.2
0.2
0.77
1.2
369
1,258
2,272
5.3
4.0
6.3
0.2
12
ta
4.6
3.2
3.6
4
rw.
2.2
_
(3.0)
0.723
0.B0
1.0
22
140
(3-5)
ay
0.22
LA
0.63
1.6
1.0
1.0
6.1 x 19
R
Sagitta 12-18 mm
Sagitta 10 - 12 mm
T
Siphonophore piece
T
1
t
Lucifer 7 mm
Fish Larva
Polychaeie fragment
4
1
~
1,474
1,258
2,272
t
Pieces of algal detritus
—_
722
Y~-6
Collected
$s
s
Copepods, Pleuromsmma
Ostracoda, small
10
&
219
1,322
2400
8
Copepeda. Pleuromamma
10
3,635
363
(61)
37
6.0
0.93
1954
$3
Euphausiids, 3.9 mm
2
2,053
1,027
(20)
2.05
1.0
1.0
R
Copepoda, rapacious
10
328
33
@)
0.33
11
1.0
R
Sagitta 5 - 15 mm
10
450
837
45
54
(2.3)
(8)
6.45
0.54
2.0
0.80
1.9
@)
0.2
1.2
12
(2 5)
0.22
6.90
1.0
{5.9)
0.32
0.68
La
4.8
0.95
1.0
7 May
.
Gyllid) 25 mm
adult
R
Conspoda. vapacious
a
1 Phronima 7 mm and
10
2
235
118
R
lLamphipod 2 mm
Copepods, Corycaeus
25
22%
8
T
Siphonophore pieces
_
340
~
t
Floccwlent detritus
~—
4,757
_
(50)
le
“Counts reduced to time of counting, 22 May 1954.
t Feeding type enknown.
¢ Efficiency of the Beta Counter was about 14 percent.
segregate between three states of dispersal; however, it must not be inferred from these
laboratory data alone that in the case of fallout into the sea and in the presence of living
organisms these elements would be permanently pirtitioned in the manner taoulated.
Moreover, a living organisin might possess an affinity for activity in quite a ditfereit
kind and degree than would the same organism dead.
Table 3 does not indicate the physical state of barium, but from its chemics! and
14