Journal of fish pathology (한국어병학회지)

The Korean Society of Fish Pathology (한국어병학회)
권호 표지

Occurrence of Saprolegnia diclina Associated with Fungal Gill disease at snake fishes Culture farm

가물치 양식어장(養殖漁場)에서 진균성새병(眞菌性鰓病)과 관련된 Saprolegnia diclina의 발생상황(發生狀況)

  • Min, Hong-Kyu (Department of Sanitary Science Dongshin Vacational Junior College) ;
  • Chun, Soon-Bai (Department of Microbiology College of Natural Sciences Chonnam National University) ;
  • Bai, Suk (Department of Microbiology College of Natural Sciences Chonnam National University)
  • 민홍규 (광주동신전문대학 위생학과) ;
  • 전순배 (전남대학교 자연과학대학 위생물학과) ;
  • 배석 (전남대학교 자연과학대학 위생물학과)
  • Published : 1991.12.30
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Abstract

Saprolegnia diclina, which was the pathogen causing death in snake fishes(Channa argus) at culture farm, was investigated using scanning electron microscope. It was found that Saprolegnia diclina infection caused snake fishes to fail gas change in the gills. Cell lysis as well as edematous disease and hyperplasia as a result of Saprolegnea diclina attachment on the surface of gills were observed. The granules, the mean diameters of which ranged from 6 to $7\;{\mu}m$, attaching on the surface of gills were found to be secondary zoospores of Saprolegnia diclina. The failures of gas exchange in the gill cells and circulation as a result of the osmotic dilution of the blood were supposed to be the main cause of death.

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