“16s These data substantiate the general hypothesis, menfioned:
atlier in this report, that the radioactivity in the tissues
5 appears to be due principally to mixed fission products,
Devi-
: ‘ations fron a straight line in the curves might be due to
| selective uptake, either by the tissues themselves or because
there was selective uptake in the animals used as food by the
. fishes,
In general. the slope of the curves compares favorably
; with the avemace: decline curve used for all food items discussed
an .
at the beginsing of thisreport.
“t
fr
|
Cc
y as to amountsof radioactivity in comparable tissues were great-
fk
fee
pe.
t
th
he
fe
2
be
a
5
5
a
>
*
4
t
¥
b
Pf
b-
“Differences betuccn the omni’yorous and carnivorous fishes
t ost on March 26, 1954.
These differences decreased with pase~
“ ; age of tine-and by January 29, 1955, werenegligible in some
E‘tissues (Figure 4, ‘Pable XII), These sanedatawhen analyzed
| by definite--species of conivoroul.fish (danse? -f4sh): and: ear~
: : ' niverous fish (grouper) show the same trends (Table ITZ).
a
Variation in radioactivity, associated with area and re-
: Plated to fallout and. currentmevensnte within and around the
~ atoll, indicates an inerease An the contamination.ofthe“atoll from
f south to north (Figure 5, Table Iv). _ The lagoonfishtaken in
‘the northern part of‘the Lagoon, oft Kabelle or vellu Island,
[are comparable in levels of radioactivity‘to ree? fishes taken
Jf im thts region. ‘the two flying fish taken outetde the atoll
Beare remarkablyalikein thesue radioactivity.
- conn 3
oy
a toe
eve"
enumerate genee
|