Table 4.6 —-INVERTEBRATE SAMPLES WITH HIGHEST ACTIVITY, PRETEST
Activity,
Organism
Tissue or organ
Snail, Nerita polita
Sponge
Sea hare, Dolabrifera
Soft parts
Entire
Gut with much sand
Urchin, Echinometra
Gut and contents
Snail, Polinices
Locality
d/m/g (x 1000)*
Runit
Engebi, outer
Engebi, outer
80
48
22
Engebi, outer
18
Egg collar, mostly sand
Runit, dredge
17
Worm, sipunculid
Entire
Runit
17
Snail, Cymatium
Sponge, black
Soft parts
Entire
Engebi, outer
Bogombogo
16
16
Snail, Strombus maculatus
Soft parts
Engebi, outer
Clam, Pinna
Clam, Pinna
Shell and byssus
Soft parts
15
Engebi, outer
Engebi, outer
14
9
*Wet sample.
Table 4.7 - FREQUENCIES OF INVERTEBRATE ASHED-SAMPLE COUNTS BY
MAGNITUDES,. PRE- AND POSTTEST*
Magnitude,
d/m/g (x 1000),
wet sample
Aomon and
Japtan
Igurin
Rigili
Bogombogo
Engebi
Aaraanbiru
Runit
9
2
23
17
6
6
2
15
9
3
1
18
11
2
Pretest
Background
0.01-0.1
0.1-1
1-10
10-100
44
1
4
15
6
2
11:
8
13
1
11
3
20
11
1
Posttest
Background
0.01-0.1
01-1
1-10
10-100
100-1000
1,000 -10,000
10,000 —-100,000
13
21
15
1
2
34
25
4
5
34
37
14
5
14
4
8
9
3
1
9
9
4
2
3
20
24
3
* Frequencies are for major collecting localities, exclusive of dredged material.
Table 4.7 also serves to demonstrate that the frequency of distribution of logarithms of
counts in the posttest series is approximately of the normal form, whereas the distribution of
the observed counts would.be strongly skewed. In the pretest series the distribution of the
logarithms of the counts is normal only in the hotter areas and then only if background counts
are excluded.
33
UNCLASSIFIED