3000 ] Column legend A Fe 60 1000 + B 7 “Co - c 20%; 500 [. Y Mean “°K concentration _ ~ _ 300 [- — | 7 a | o a oO = 100;-- ‘=56 | 5 Oo £ c 7 : " parE _ c Yo 2 6 — u 2 r] o Vv 2 o 3 bem 30 }- 10 meme 4 —_— — f — 5+ [ —_—— —— —— -] — —- P —— m7 P 4 | 3 AJBIC BELLE BIC JANET ALBIC KATE ABIC WALT = ALBIC GLENN Bic HENRY ALBIC LEROY Collection site Fig, 163, Average ane be, 065, and 20% 3; concentration in the kidney of Tridacna clams collected at Enewetak Atoll, October to December, 1372, value is the mean of all Tridacna samples. I-27 The #9xK