-18Plankton Amounts of radioactivity per unit of wet weight of plankton in samples from each tow appear in Table 7, and on the basis of ash weight, in Table 8. This dual analysis is intended to evaluate the appropriateness of the wet basis as compared to the ash basis in considerin g the radioactivity of plankton. Where simultaneous fine and coarse mesh tows Table 7. Gross beta radioactivity of plankton samples in thousands of d/a/g of wat weight at Eniwetok Atoll in 1954-56. Date Belle #6 5/6&7/54 ? 5/19/54 |10900 6/16/54 7/6/54 7/27/54 274 6/9/54 Mike crater Net moa #20 |#6 | 12.8 aol o/uiss 10 /54 12900 $170 ae a 11/6/54 150 11/27/54 2/12/55 3/16/55 12.7 rT 13.4 3. 3/21/55 10/23/55 7.0 _10 30 Tos |? #20 [#6 1360; 900 400 5.] 58 33 46 Deep Entrance et 33 1. 121 60 61 220 163 180 72 121 3.2 6.0 103 15 18, 9.1 32 19-5 4. 250 a4 4.49 7.6 32 253 3.4 #20 jWide Passage Leroy #6 #6) ? #20 8.2 2800 670 287 1 11/26/54 #eolve 13. 2990 |Vere Not 85 54 256 33 7.6; 63 77 30 56 5,8 Se 2.3 23 190 564 39 12 3d 1 6,5 34 12.6 25 25a 22 42 : ol 2% 5500 370 49 13 62 2.5 2.5 2 1,02 (12. 2.8 8. 252 47 232 “il io 4 .US4 1.083 4/27/56 #20 669 8.7 Gel 38 53 6. 67 42 215 5. 5000 220 38 2? 2.35 a 6.2 10.8 34 2097 222 Additional "f mesh": on 5/6-8/54, Janet 9.6, Yvonne 1.8, Bruce 2.0, Elmer 2.5, and Henry 3.4; on 4/27/56, Bruce 0.73 and 0.49. Table &. Date Gross beta radioactivity of plankton samples in thousands of d/m/g of ash weight at Eniwetok Atoll in 1954-56. Belle #6 5/6&7/S4 5/19/54 6/9/54 6/16/54 7/6/54 7f27/54 71/27/54 9/1/54 10, /$4 6/64 26/54 11/26/54 11/27/54 n/ay/{se 12/3/84 thes 55 3/16/55 3/21/55 e/eiss 30/29/56 10/29/55 10/29/55 10/29/55 Mike crater ? #20| 97 (14 #6 P9000 [589 hS000 8400 vad 183q |? #20 a 53d 440d al 760 1360 840 26 ly mesh 7 4230 125 797 “1170 73 alad §260 T3510 1200 3410 1250 Deep Entrance Wide Passage |Leroy #20 ye ? [#20 | i#6 ? #20/#6 ol 6800 10100 1550 1120 g00 Net h.o7000 goog 100 Vera #6 95 he'7 67 254 495 574 217| 524 861) 167 3660 311 6 182 I 748 |11 40 cod 210)184 3500} 3 144 542/132 7791 ? 13.5) 9609 863 [12 986 1270 § 136 05 77 623} 494 77\| 64 15%) 20 0 8000 2430 O80 630} 215; p? a9 11.8 4/27/56 330 hOo70 76000 6869 217 20 119 439 163) S820 mea ho 320 45 “4 1660 78 223 332 2 149 Lad 5.0 hO.4 al Additional "? mesh": on 5/6-8/54, Janet 58, Yvonne 59, Bruce 76, Elmer 72, and Henry 26; on 4/27/56, Bruce 1.36. . oh My bw A