51
shells, (Ostrea sp.) found on the pieces of wreckage were empty.
This was -
1
especially true of the larger and, thus possibly older forms, that had
|
reached the larger size before dying.
The etire a-genism was usually reduced to an ash for gross beta-gamma
counting.
In other cases the soft parts were removed from the shell and re=
dwed to anash before plecing the residue in the counter.
gamma counts are summarized in Table 2, part be
The gross beta=
The counts due to fission
products in this mterial were consistantly greater than similar tissues
collected elsevhere about the atoll.
Some radioautographs were prepared from material collected in the target
a tews =
Shand
area,
The prints made are included as figures 14, 15, 16, 17 and 18, to
pete
visually show the radiation emanating from the fission products that are
contained in these organisms.
Invertebrate material from other parts of the lagoon.
i
& variety of invertebrate forms were collected at or near the locations
where fish collections were madee
The data on the area of collecton, name
of organism, date collected, and activity counts of the tissues sampled are
listed in Table 2, part be
The counts per gram of sample removed from the invertebrates, in the
main, exceed the average ounts from active substances from fish collected
in the sam area (Table 2).
The activity comts found in sponges average greater than counts in
other at ganisms from similar areas.
|
The digestive glands of the invertebrates heg the greatest average con=
3
S
&
bend
a
centration of fission products.
Z
Thane
;