Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Effect of PCBs on the Skin and Gill Development in the Larval Stage of Olive Flounder, Paralichthys olivaceus

넙치 (Paralichthys olivaceus) 자어의 피부 및 아가미 발달에 미치는 PCBs의 영향

  • KIM Jae Won (Department of Aquatic Life Medicine, Pukyong National University) ;
  • KANG Ju Chan (Department of Aquatic Life Medicine, Pukyong National University) ;
  • MA Kyung Hwa (Department of Fish Pathology, Yosu National University) ;
  • LEE Jung Sick (Department of Fish Pathology, Yosu National University)
  • Published : 2003.04.01
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Abstract

Effect of PCBs on the skin and gill development of olive flounder, Paralichthys olivaceus were investigated by histological methodology and morphometric data. The olive flounder were exposed to limit concentration of effulent of PCBs (3.0 ${\mu}g/L$) for 60 days. Skin development can be classified into four stages: SSEL (simple squamous epithelial layer), MCA (mucous cell appearance) & CCA (club cell appearance) DLA (dermal layer appearance), and SEL (startification of epidermal layer) stages. Gill development had five stages: GFA (gill filament appearance), IGFE (identification of early gill filament epithelial cell) MCA (mucous cell appearance), PCA (pillar cell appearance), and FGL (formation of gill lamella) stages. The periods of structural completion of skin and gill were 22-30 days and 23-30 days after hatching in the exposure group respectively. The process of development of skin and gill of the exposure group was very similar to that of the control group. Therefore, PCBs (3 ${\mu}g/L$) have no influence on the development of skin and gill in the larval stage of olive flounder.

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References

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