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Behavior of the insecticide imidacloprid in crucian carp (Carassius auratus L.) and its toxic effects on organs  

Ihm, Yang-Bin (Soil Management Division, Department of Agricultural Environment)
Kim, Chan-Sub (Pesticide Safety Division, Department of Crop Life Safety, National Institute of Agricultural Science & Technology)
Lee, Hee-Dong (Pesticide Safety Division, Department of Crop Life Safety, National Institute of Agricultural Science & Technology)
Kim, Dae-Kyu (Department of Agricultural Chemistry, College of Agriculture, Life and Environmental Sciences, Chungbuk National University)
Kyung, Kee-Sung (Department of Agricultural Chemistry, College of Agriculture, Life and Environmental Sciences, Chungbuk National University)
Publication Information
The Korean Journal of Pesticide Science / v.10, no.4, 2006 , pp. 289-295 More about this Journal
Abstract
In order to elucidate the behavior of the insecticide imidacloprid (1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine) in crucian carp (Carassius auratus L.) and its effects on the internal organs of crucian carp, the crucian carps were exposed to [$^{14}C$]imidacloprid at a predicted environmental concentration of 0.064 mg/L for 4 days. Imidacloprid in water was absorbed into crucian carps to reach the maximum concentration at 2 days after exposure. Unknown major metabolite and imidacloprid urea, minor metabolite, were detected in test water. The amounts of the [$^{14}C$]imidacloprid and its metabolites absorbed in gall were much higher than those in the other parts, strongly suggesting that biliary excretion involving enterohepatic recirculation could be an import route for the elimination of imidacloprid absorbed in crucian carps. Meanwhile, no toxic effects of imidacloprid on liver and kidney as well as the genital organs such as testis and ovary were observed by microscopic inspection.
Keywords
imidacloprid; crucian carp; behavior; enterohepatic recirculation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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