Strontium-90 in Coconut Crabs — CHAKRAVARTI and ElSLER 
157 
TABLE 3 
Gross Beta Activity of Fat and Nonfat Fractions and Percentage of Gross Beta Activity in 
Fat of Coconut Crab (Birgus latro) Liver 
SAMPLE 
NUMBER 
LOCATION OF 
COLLECTION 
FAT 
d/m / g* 
NONFAT d/m/g* 
PERCENTAGE OF GROSS 
BETA ACTIVITY DUE TO FAT 
Wet weight 
basis 
Dry weight 
basis 
Wet weight 
basis 
Dry weight 
basis 
34 
Rongelap Atoll 
4 
1116 
1967 
0.29 
0.77 
35 
8 
1086 
1674 
0.67 
1.36 
36 
Kabelle Island 
6 
618 
1086 
0.45 
0.68 
37 
14 
1929 
3446 
0.44 
0.84 
38 
2 
1219 
1958 
0.11 
0.22 
Mean 
7 
1194 
2026 
0.39 
0.77 
84 
Rongelap Island.... 
1 
753 
1117 
0.18 
0.42 
85 
0 
661 
897 
0.00 
0.00 
86 
-2 
513 
718 
0.00 
0.00 
87 
1 
1169 
1684 
0.13 
0.45 
88 
1 
545 
882 
0.13 
0.26 
Mean 
0.2 
728 
1060 
0.09 
0.23 
61 
Eniaetok Island 
6 
824 
1466 
0.49 
0.99 
62 
6 
984 
1681 
0.45 
0.97 
Mean 
6 
904 
1573 
0.47 
0.98 
* Counting error is less than 8 per cent. 
TABLE 4 
Gross Beta Activity of Liver of the Coconut Crab ( Birgus latro) 
SAMPLE 
LOCATION OF 
TOTAL SAMPLE d/m/g* 
NUMBER 
COLLECTION 
Wet weight basis 
Dry weight basis 
34 
Rongelap Atoll 
617 
431 
35 
563 
428 
36 
Kabelle Island 
423 
485 
37 
1196 
1110 
38 
702 
627 
Mean 
700 
616 
Standard deviation 
295 
288 
84 
Rongelap Island 
330 
188 
85 
234 
110 
86 
253 
208 
87 
450 
194 
88 
306 
257 
Mean 
315 
191 
Standard deviation 
85 
52 
61 | 
Eniaetok Island 
492 
413 
62 1 
564 
454 
Mean 
528 
434 
Standard deviation 
51 
29 
Counting error is less than 8 per cent. 
