Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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The Tissues and Blood Components of Opsariichthys uncirostris amurensis in the Muddy Water Area

탁수역에 서식하는 끄리의 조직과 혈액 성분의 변화

  • Shin, Myung-Ja (Dept. of Biological Science, Andong National University) ;
  • Lee, Jong-Eun (Dept. of Biological Science, Andong National University) ;
  • Seo, Eul-Won (Dept. of Biological Science, Andong National University)
  • 신명자 (안동대학교 자연과학대학 생명과학과) ;
  • 이종은 (안동대학교 자연과학대학 생명과학과) ;
  • 서을원 (안동대학교 자연과학대학 생명과학과)
  • Published : 2007.01.29
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Abstract

Present study aims to investigate the effect of muddy water on gill and kidney tissues and blood components of Opsariichthys uncirostris amurensis in Imha reservoir. As a result of observing the gill tissues in muddy water with light and scanning electron microscopes, the edema, the exfoliation of epithelial cells and fusion of the secondary lamellae were observed. The space between gill lamellae was irregular, and a lots of muddy debris around the secondary lamellae were observed. In case of kidney tissues, the size of glomerulus was smaller and thickness of basal membrane was broader and the empty space in Bowman's capsule was wider than those of the control. The blood cells of O. uncirostris amurensis in muddy water were increased in number. Of the white blood cells, acidophilic granulocytes were highly distributed, and the shapes were irregular. Among the plasma components, the concentration of TP, ALB, A/G ratio, TG, CHOL, and AST were low, whereas that of the inorganic materials was high. Based on the above results, it is considered that muddy water possibly involves in the decrease of respiratory and excretory rates, giving rise to secondary lesion of tissues.

탁수가 어류의 아가미, 신장 및 혈액 성분에 미치는 영향을 조사하기 위하여 탁수역인 임하호와 비탁수역인 안동호에 서식하는 끄리를 비교 조사하였다. 탁수역 끄리 아가미는 부종, 상피세포의 박리 및 이차새변의 유합이 확인되었으며, 또한 새변의 간격은 불규칙적으로 배열되어 있으며 이물질의 부착이 두드러지게 관찰되었다. 신장 조직은 전반적으로 사구체가 수축되고 사구체의 기저막이 두꺼워진 형태로 확인되었으며, 보우만 주머니 안의 공간이 넓게 관찰되었다. 탁수역 끄리의 혈구 중에는 비정형으로 과립성 호산구가 주로 확인되었으며, 적혈구 수와 백혈구 수는 비탁수역 끄리에 비해 다소 많았다. 또한 혈액성분 중 TP, ALB, A/G비, TG, CHOL, AST의 함량은 상대적으로 낮게 나타났으나 무기질의 함량은 더 높은 것으로 나타났다. 또한 TP, ALB, A/G비 등은 큰 함량의 차이가 없었으나 TG, CHOL, AST은 큰 함량의 차이를 나타냈다. 결론적으로 탁수는 아가미의 곤봉화, 부종, 상피세포의 박리현상 및 신장 사구체의 수축을 초래하고 있으며, 혈구수의 증가와 혈액성분의 함량차이를 나타내고 있다. 이러한 결과로 보아 탁수는 어류의 호흡과 배설 장애등 심각한 조직, 생리적 장애를 가져 올 수 있을 것으로 사료된다.

Keywords

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