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KMID : 0893320010160020051
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Journal of Environmental Toxicology
2001 Volume.16 No. 2 p.51 ~ p.56
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Effects of Arsenic on the Gonadal Development in Crucian Carp
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Nam Seung-Sook
Lee Chul-Woo
Ryu Ji-Sung
Park Eung-Roh
Nam Kyu-Chan
Rhu Hong-Il
Jeon Seong-Hwan
Na Jin-Gyun
Choi Doug-Il
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Abstract
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To evaluate the arsenic effect of fish endocrine disruption, crucian carp (Carassius auratus) were treated with 0.5 mg/L and 3.0 mg/L of AsO for 14 days and gonadal development was examined by histological analysis. In ovaries from female crucial carps exposed to 3.0 mg/L, immature follicles and atretic follicles were appeared while various normal developmental stages of oocytes were shown in control group. Body weight and Gonadosomatic Index (GSI) of treated carp were also decreased compared to control group. However, no other significant histological changes in liver or kidney were shown in this exposure scheme. This means that reproductive organs are more sensitive than other organs and arsenic may exert endocrine disrupting effect through inhibiting the development of reproductive organ in fish.
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KEYWORD
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arsenic, endocrine disruptor, fish, gonadal development
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