ii
3.3 Ecological Factors in the Distribution
of Radioisotopes in a Marine Environment..... ances
32
Materials and Methods........ ee meme re res weveeene eee
37
4,1 Collection and Selection of Samples.......e eee nawes
37
ALL
Collection... .. cre wervccsccccnvevevcvsres
37
4.12
Selection of samples for analysis.........
37
4.2 Sample Preparation... . cc cccccccvesccesvucesece esos
38
4.21
1958 samples........cccccc cece cccccccccens 38
4.22
1959 samples..... cee wrcceroererseccsscce
39
4.3 ANALYSEB.. . ccc rece cr rescence n nner ec erence sanesenes 40
4.31
Radiometric analyses of 1958 samples......
40
4.32
1959 Samples... cer cceccncravvcccssecene
40
4.321 Radiometric analyges.......scvenee 40
4.322 Stable zinc
3.
analyses.........622.- 41
Analytical Results... .. ccc cece cere cece cnc ceneecccereces 49
5.1 Relevant Information from Early Surveys............ 49
5.11
5.12
Radioactivity of reef fishes of
Belle Island, Eniwetok Atoll,
April 1954 to November 1955.......cc008- os
49
Radiobiological studies of fish
collected at Rongelap and Ailinginae
Atolls, July 1957... . cc ccc wenn cre ncceenes 50
5.2 August 1958 Rongelap Survey..... c-cccvccccvcovcsece 51
5.21
Gross beta and total gamma radioactivity.. 51
5.22
Gamma spectrometric analyses........0ceees 54