Abstract
Abstract The rates at which 14C-dieldrin is eliminated from various goldfish tissues under experimental conditions are determined and the behavior of dieldrin is compared with that of DDT in a previous similar investigation. Three groups of goldfish (Carassius auratus) were fed a diet contaminated with 14C-dieldrin. When the fish had reached the desired level of exposure, group A was starved, group B was fed an uncontaminated diet, and group C was given a diet contaminated with 12C-dieldrin. Experimental conditions remained the same for all groups during the course of the investigation. The elimination of 14C-dieldrin from various tissues was measured with a low-background gas-flow GM counter. It was found that (1) fish in group A had a high rate of elimination initially, and the subsequent percent decrease in activity was almost the same in all tissues; (2) fish in group B eliminated the contaminant at approximately the same rate from all tissues, but more slowly than those in group A; (3) fish in group ...
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