3000 a Column legend Mean “°K concentration A Fe _ B Ce c 207, ; 1000 + | n — 500 f= L > 300 —7 L r | S ° = 100 c = 50-L © 30h ECc ih) 6 - _ _ _—. ] _ _ - — oO 2 — = —_ a “oO _ S a = 5 = | = 3 ATBIC BELLE BIC AIBIC JANET AIBIC KATE WALT BIC GLENN BIC AI BIC HENRY LEROY Collection site Fig. 163, 55 60 207 Average 40 Fe, Co, and Bi concentration in the kidney of Tridacna clams collected at.Enewetak Atoll, October to December, 1972. The OK value is the mean of all Tridacna samples. T]-27 4\