Fishborne trematode metacercariae in freshwater fish from Guangxi Zhuang Autonomous Region, China.
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.
Sohn
Woon-Mok
WM
Department of Parasitology and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Korea. wmsohn@gnu.ac.kr
Eom
Keeseon S
KS
Min
Duk-Young
DY
Rim
Han-Jong
HJ
Hoang
Eui-Hyug
EH
Yang
Yichao
Y
Li
Xueming
X
D000818:Animals; D002681:China / Q000453:epidemiology; D005393:Fish Diseases / Q000453:epidemiology / Q000469:parasitology*; D005618:Fresh Water / Q000469:parasitology*; D014200:Trematoda / Q000166:cytology / Q000302:isolation & purification*; D014201:Trematode Infections / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*