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The Uptake and Distribution of Chlorinated Residues by Goldfish (Carassius auratus) Fed a 14 C‐Dieldrin Contaminated Diet
Author(s) -
Grzenda Alfred R.,
Taylor William J.,
Paris Doris F.
Publication year - 1971
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1971)100<215:tuadoc>2.0.co;2
Subject(s) - dieldrin , carassius auratus , toxicant , adipose tissue , chemistry , tissue distribution , fish <actinopterygii> , contamination , toxicokinetics , zoology , pesticide , biology , toxicity , environmental chemistry , metabolism , biochemistry , fishery , ecology , physiology , organic chemistry
Abstract When goldfish (Carassius auratus) were fed at regular intervals with 14 C‐dieldrin contaminated food, they exhibited a rapid initial uptake of radioactivity followed by a period in which the uptake rate was considerably reduced. The concentration of radioactivity in the tissue was found to increase continuously during the course of the investigation. Tissues from fish fed on a diet containing a high concentration of dieldrin were shown to accumulate higher concentrations of radioactivity and at greater rates than those exposed to a lower concentration of toxicant. It was also found that tissues from fish exposed to the lower dieldrin concentration took up a higher percentage of the available radioactivity than did tissues from fish exposed to higher concentrations. Analysis of individual tissues revealed that, in all cases, mesenteric adipose tissue and testes contained the highest concentrations of radioactivity, while muscle and blood had the lowest. Thin‐layer chromatography of tissue extracts failed to reveal any radioactive metabolites derived from dieldrin.