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KMID : 0893320100250040287
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Journal of Environmental Toxicology
2010 Volume.25 No. 4 p.287 ~ p.294
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Intersexuality of Crassostrea gigas and Ruditapes philippinarum in Southern Coastal Waters of Korea
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Lee Jung-Sick
Lee Yeon-Gyu
Kang Seung-Wan
Park Ji-Seon
Lee Dong-Geun
Jeon Mi-Ae
Ju Sun-Mi
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Abstract
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Objectives: The aim of this study was to verify the intersexuality of Crassostrea gigas and Ruditapes philippinarum in southern coastal waters of Korea.
Methods: Specimens of Crassostrea gigas (n=363) were collected from six areas of Tongyeong, Geoje and Yeosu. Ruditapes philippinarum (n=221) was collected from five areas of Yeosu. The sex ratio and intersexuality were determined after observing gonad preparations.
Results: The rate of intersexuality in Crassostrea gigas was 16.25%, with females (24.79%; n=30/121) exhibiting a higher rate than males (11.98%; n=29/242). The rate of intersexuality in Ruditapes philippinarum was 24.43%, with females (37.76%; n=37/98) exhibiting a higher rate than males (13.82%; n=17/123).
Conclusions: The results of this study suggest that intersexuality is induced by aquatic pollutants such as endocrine disrupting chemicals (EDCs).
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KEYWORD
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Crassostrea gigas, Intersexuality, Ruditapes philippinarum
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