ie Table 5.1 —RADIOACTIVITY OF SAMPLES SUMMARIZED BY GROUPS AND BY ISLANDS*t Water Island n Av. Plankton nA. Algae a Max. Invertebrates Min. Av, n Max. “Min. AV. , @ Pretest: Japtan Igurin Rigili Bogombogo Engebi Aomon-Rojoa Runit 6 0.94 «8 1.3 8 2.6 9 0.30 10 0.22 12 0.12 18 2 0.000005 2 2 0.000055 1 2 0.00073 2 2 0.000030 2 2 0.000915 2 2 0.00019 2 Av. 0.00014 0.099 0.51 0.97 4.3 21 54 51 0.041 0.067 0.14 0.24 0.18 1.7 0.087 0.066 0.18 0.40 1.4 8.3 7.7 7.6 0.92 49 23 33 55 712 45 52 0.47 0.46 2.8 16 48 8.5 80 0 «0 0 0 Q 0 0 0.024 0.041 0.24 0.99 3.2 1.12 3.9 3.7 1.4 Posttest: Japtan Igurin Rigili Bogallua Engebi Aaraanbiru Aomon-Biijiri Runit 2 2 2 2 2 2 0.00013 0.00052 0.0020 0.094 0.921 0.0960 2 0.00044 Av. 2 2 2 88 45 850 2 6 6 0.70 10 40 6 2,100 8 14,000 3 6,800 8 6,200 58 13 2 0.018 0.22 4.1 28 1,200 2,500 56 250 13 n Max. 103 180 49 0.47 68 15 92 400 23 (7,700 21 15,000 38 6,800 50 160 «0 0.083 0 4.0 0.35 44 25 1,180 10 1,670 2.1 1,090 0.63 1,800 Fish Island 0.30 15 §50 5,200 4,000 2,400 Min. 26 Bogombogo 45 50 50 50 50 Engebi Aomon-Rojoa 50 50 Runit 0.074 0 0.105 0 0.73 «0 2.5 72.0 4.2 45 0 A Max, 0.022 14 0.021 22 0.092 17 0.074 3.7 8.6 0 0 0 0.014 0.28 16t 0.56 247 0.047 0 0.038 0 0.013 0.010 3.4 1.3 0.092 0 0.83 0.28 88 328 0.018 0 0.026 0 0.006 0.008 0.19 2.0 0.34 2.6 0 0 0 Av. Posttest: Ay. 1.6 0 0.12 n Max. Min, ay 0 0 te Av. 0 ie ' e / @ tL. e 0.007 0.35 0.76 Av. Japtan Igurin Rigili Bogallua Engebi Aaraanbiru Aomon-Biijiri Runit 22 24 30 e@ Land vertebrates Pretest: Japtan Igurin Rigili ' 570 Land plants Min Av. er) 0.86 50 4.1 50 380 54 79 6,800 66 7,500 70 6,800 68 12 0.22 0 0.50 0 22 0.10 0.46 310 0.37 590 0.22 160 0.10 8.3 6 11 20 0.33 39 820 6 4,000 12. 2 370 60 0.13 0.83 1.0 280 4.9 20 0.24 16 100 1,900 89 40 360 160 28t 2it 19y 21¢ 485 21t 0.54 1.7 53 280 46 23 0.070 0.044 0.019 0.28 0.48 0.17 0.23 0.48 8.6 23 6.2 2.5 6.9 *Measured in disintegrations per minute per gram (x 1000), wet sample. tn refers to plates counted, not to specimens. tBirds. §Rats. 83 UNCLASSIFIED L_.@