he"ES SCNT
Analysis by Tissues or Organs.
The data for the analysis
of tissues or organs are summarized in Tables 12 and 13,
in
which the d/m/g wet weight of tissues is compared by islands
and by feeding habits.
Part of the material has been discussed
on the preceding pages.
Generally,
in both pre-shot and post shot fish,
the great-
est amount of activity was found in the gut with liver, skin,
bone, and muscle having lesser amounts in descending order of
magnitude.
Exceptions to this sequence were most numerous in
skin and bone counts,
about the same.
in which the disintegration rates were
Omnivores usually had slightly more activity
in the pone than in the skin, whereas the reverse was generally
true in the carnivores.
Other exceptions occurred in most of
the fish at Japtan and in the pre-shot samples from Igurin,
where
the activity in the livers was usually lower than in other tis-
sues, while muscle radioactivity was comparatively high in pro- .
portion to other tissues and when compared with other stations.
Counts
in skin and bone averaged about twice muscle in
pre-shot omnivores and carnivores.
In post shot omnivores the
skin and bone counts were about 5 times muscle and in cernivores
about 2 to 3 times muscle.
sues
Differences between these three tis-
seemed to be greatest at Rigili, Engebi, and Asraanbiru
in post shot fish.
Aside from the exceptions at Japtan and Igurin mentioned
above, the liver was usually much more radioactive than skin,
pone,
and muscle.
The average for all fish livers combined
~ 53 oy a. FO
poor
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