Korean J Parasitol.  2009 Sep;47(3):249-257. 10.3347/kjp.2009.47.3.249.

Fishborne Trematode Metacercariae in Freshwater Fish from Guangxi Zhuang Autonomous Region, China

Affiliations
  • 1Department of Parasitology and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-751, Korea. wmsohn@gnu.ac.kr
  • 2Department of Parasitology and Medical Research Institute, Chungbuk National University School of Medicine, Cheongju 360-763, Korea.
  • 3Department of Parasitology, Hanyang University College of Medicine, Seoul 133-791, Korea.
  • 4Department of Parasitology, College of Medicine, Korea University, Seoul 136-705, Korea.
  • 5Korea Association of Health, Seoul 157-704, Korea.
  • 6Guangxi Centre for Disease Prevention and Control, Nanning, Guangxi, China.

Abstract

A survey was performed to investigate the infection status of fishborne trematode (FBT) metacercariae in freshwater fish from Guangxi Zhuang Autonomous Region, China. A total of 307 freshwater fish of 31 species were collected from 5 administrative regions of Guangxi Zhuang Autonomous Region. They were examined by artificial digestion method from July 2003 to August 2004. No metacercariae were detected in fish from Fusui-xian. In fish from Mashan-xian and a market in Nanning, 3 species of metacercariae, Haplorchis taichui, Haplorchis pumilio, and Centrocestus formosanus, were mainly detected. Metacercariae (8 in number) of Clonorchis sinensis were found in 1 Chanodichthys dabryi purchased from a market in Nanning. In fish from Yangshuo, Metagonimus yokogawai metacercariae were detected from all 18 fish species examined. Total 13 C. sinensis metacercariae were found in 3 out of 10 Hemibarbus maculatus from Yangshuo. All 7 Zacco platypus from Yangshuo were infected with 8-112 Echinochasmus perfoliatus metacercariae. In fish from Binyang-xian, H. pumilo metacercariae were mainly detected in all 5 fish species examined, and only 1 metacercaria of C. sinensis was found in a Hemiculter leucisculus. From the above results, it was confirmed that some species of freshwater fish play a role of second intermediate hosts for FBT in Guangxi Zhuang Autonomous Region, China. In particular, 4 species of intestinal flukes, M. yokogawai, H. taichui, H. pumilio, and C. formosanus, were prevalent in fish hosts, whereas C. sinensis metacercariae were detected only in 3 fish species.

Keyword

Haplorchis taichui; Haplorchis pumilio; Centrocestus formosanus; Metagonimus yokogawai; Clonorchis sinensis; fishborne trematode metacercariae; freshwater fish; Guangxi Zhuang Autonomous Region; China

MeSH Terms

Animals
China/epidemiology
Fish Diseases/epidemiology/*parasitology
Fresh Water/*parasitology
Trematoda/cytology/*isolation & purification
Trematode Infections/epidemiology/parasitology/*veterinary
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