The concentrations of cadmium, lead, iron, copper and zinc were analysed in Loggerhead Turtle (Caretta caretta) hatchling samples (eggshells, remaining yolk, and liver) from beaches of southwest Turkey. Cd, Pb, Fe, and Cu concentrations were higher in embryo liver than in yolk. Zn concentration was higher in yolk. Hg concentrations in all yolk samples were below the detection limit, but levels could be measured in some embryo livers.
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Kaska et al. (2001) studied this question.
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