47
Using the summaries of activity counts, as found in the liver, faeces,
and muscle, Figure 10 was drawn.
The data for the cowmts in the liver end
faeces show an extremely high degree of correlation.
The greatest amounts
of activity in these samples was found to be present in the fish collected
about the coral heads in areas 2007 and 1709 in 20 to 30 feet of water.
The activity coumts for the bone, gills, and skin are plotted on Figure ll.
The data assembled indicates that these tissues contain active materials in
varying amounts in areas sampled.
On the average the tissues collected from
animals living along the northern portion of the atoll contained mre Mssion
products tian from other areas on the outer rim of the atoll.
Amounts of radioactive substances in various tissues.
The fish tissues studied have been Sammarized by tissue in Table 4.
These data give the average cowmmt above background per minute, per gram of
wet tissue, uncorrected for ebsorptione
The goometry of the counter arrange-
ment was about 22%, so to obtain the total o./min./er. of wet tissue, uncore
rected for absorption, multiply by 4.5.
The greatest average values were recorded from sections of fish spleen
vhere the average of 67 specimens was 23.51 c./min./gre
with 387 specimens having mn average count of 18.66.
of fish feaces had en average count of 14.53.
with 50 counts for an average of 11.64.
4.16,
skin 20657,
The liver was next
A total of 428 counts
The kidney tissue was next
The gonads recorded 8.16, the gills
bone 2.45 and the muscle 10496
Invertebrate mterial from the target areae
The divers operating from the U.S.S. Coucal and working on the sunken
ships in the target area brought to the surface objects from which organisms
were recovered.
These organisms were young forms that had developed since
the ships had been on the bottom.
It was observed that most of the oyster
of UNIVERSITY Anen es
UNITY, OF
Woe
ore
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