88,000 1,500 270 2,400 ‘ No. 31 plankton. 24,000 4,100 Station Wo. 28429 plankton Stations 5590 37,000 910 310 wo. 32 _Plankion Station 10,000 No. 37 _plankton Station 7,000 _ 100 19,000 300, 000 ee 4,000 430, 000 67,000 trece 36,000 86,000 120,000 -- -- 4, 400 a sé 6,400 0 trese 530 1,300 1,600,000 ary 1,800 -- . (00) 24,000 wet 550,000 120,000 3,400 -- TTO,000 -- 84,000 -- 550,000 22,000 - 2,400 -- 16,000 62,000 -- -- 1,800 33,000 130,000 - dry piankton mw. Station fish 189,000 wo. 38 pienkton Station 20 13,000 150 1, 700 trece == treee A dry weight muscle Plying 220,000 mw. 9 plankton Station 30,000 110,000 5,200 76,000 “erace o- 15,000 dry weight ce Values for plankton given in d/m/ 950 240,000 -- 190,000 -- 40, 000 o- 750,000 310,000 =. 300, 000 5,900 -- 4,700 - 980 -- 18,000 7,600 -- 7,300 3, 700 210,000 (oc) 5,100 wet -> ary wo. 4 plankton 15,400,000 (00) plankton No. 3 Station 330,000 wet No, 27 _Plankton 6, 600 110 . Station -- -- Stations 21,000 170,000 350 2,800 ol 22,000 290, 000 370 &,800 38,000 on oe 63% 28,000 6,000 ~- ary xh _— 1,000 ~~ (0) plenkton No. 22423 _plankton wet No. 2 Station Station and d/m/g dry weight samples and the survey plankton samples from the Collett ons (ion-exchange) on six selected Summary of the results of chemical separati a spectrum analysis, of eight levels of wi?>, determined by gamm not contain detectable amounts of wi85| Plankton from all other stations did ws (@/u/eo) Isotope we?99 w23T pa)401,140 s29-90 mS 0069 58 29m 3357 7103-106 oe 241-104 cos? ws Ieotope Table 1.