이사천에서 채집된 피라미, Zacco platypus의 생식과 기관계 구조 이상

Abnormality of Reproduction and Organ Structure of the Pale Chub, Zacco platypus from Isa Stream

  • 진영국 (전남대학교 수산해양대학 수산생명의학과) ;
  • 신순호 (진남여자중학교) ;
  • 이제봉 (전남대학교 수산해양대학 수산생명의학과) ;
  • 이재우 (전남대학교 수산해양대학 수산생명의학과) ;
  • 안철민 (국립수산과학원) ;
  • 이정식 (전남대학교 수산해양대학 수산생명의학과)
  • Jin Young-Guk (Department of Aqualife Medicine, College of Fisheries and Ocean Science, Chonnam National University) ;
  • Shin Soon-Ho (Jinnam Girls' Middle School) ;
  • Lee Jae-Bong (Department of Aqualife Medicine, College of Fisheries and Ocean Science, Chonnam National University) ;
  • Lee Jae-Woo (Department of Aqualife Medicine, College of Fisheries and Ocean Science, Chonnam National University) ;
  • An Cheul-Min (National Fisheries Research and Development Institute) ;
  • Lee Jung-Sick (Department of Aqualife Medicine, College of Fisheries and Ocean Science, Chonnam National University)
  • 발행 : 2006.03.01

초록

Reproduction and organ structure of the pale chub, Zacco platypus in Isa stream were investigated by means of histological methods. The results of the study confirmed reproductive abnormality and histopathological features in the pale chub. The gonadosomatic index (GSI) of the fish showed two peak in April and August. In summer season, GSI of the male was about two times of the female's GSI. Monthly variation of the gonadal development was very irregular. From the histological analysis of the organ structure, epidermal atrophy, necrosis and hyperplasia of pigment cell were observed in the skin. Epithelial layer lifting and clubbing of the lamella and bifurcation of the filament were observed in the gill. Also histological changes as congestion, cytoplasmic degeneration of hepatic cell, degeneration of bile duct, glomerular dilatation, degeneration of renal tubule and pycnosis of interstitial cell were identified in the liver and kidney, respectively.

키워드

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