Korean J Parasitol.  2012 Sep;50(3):215-220. 10.3347/kjp.2012.50.3.215.

Infection Status of Estuarine Fish and Oysters with Intestinal Fluke Metacercariae in Muan-gun, Jeollanam-do, Korea

Affiliations
  • 1Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 363-951, Korea.
  • 2Health Center of Muan-gun, Muan 534-804, Korea.
  • 3Department of Parasitology and Inha Research Institute for Medical Sciences, Inha University College of Medicine, Incheon 400-712, Korea.
  • 4Department of Parasitology and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-751, Korea. wmsohn@gnu.ac.kr

Abstract

The source of human infection with intestinal flukes was surveyed in estuarine fishes, including the dotted gizzard shad, common sea bass, common blackish goby, redlip mullet, black sea bream, and oyster collected from Muan-gun, Jeollanam-do, Korea during August and September 2007. Collected fishes and oysters were artificially digested in pepsin-HCl solution and examined under a stereomicroscope. In 36 shads (Konosirus punctatus) and 20 basses (Lateolabrax japonicus) examined, Heterophyopsis continua metacercariae were found in 58.3% and 100%, and their average numbers were 12.0 and 6.3 per infected fish, respectively. In 34 gobies (Acanthogobius flavimanus) examined, metacercariae of H. continua were detected in 79.4%, Stictodora lari in 97.1%, and Acanthotrema felis in 92.1%, and their average numbers were 45.8, 189.3, and 235.3 per infected fish, respectively. In 37 redlip mullets (Chelon haematocheilus), Heterophyes nocens metacercariae were found in 56.8%, Pygidiopsis summa in 94.6%, and Stictodora fuscata in 45.9%, and the average metacercarial densities were 17.4, 31.3, and 35.1 per infected fish, respectively. In 30 black sea breams (Acanthopagrus schlegeli) and 45 oysters (Crassostrea gigas) examined, no metacercariae were detected. From the above results, it has been confirmed that the dotted gizzard shad, common sea bass, common blackish goby, and redlip mullet from Muan-gun, Jeollanam-do, Korea are infected with the metacercariae of heterophyid flukes.

Keyword

Heterophyopsis continua; Stictodora lari; Acanthotrema felis; Heterophyes nocens; Pygidiopsis summa; Stictodora fuscata; metacercaria; fish; oyster; Muan-gun

MeSH Terms

Animals
Fish Diseases/parasitology
Fishes/*parasitology
Helminthiasis/parasitology
Helminthiasis, Animal/epidemiology/parasitology
Humans
Intestinal Diseases/parasitology/veterinary
Intestines/parasitology
Korea
Metacercariae/isolation & purification
Microscopy/methods
Ostreidae/*parasitology
Prevalence
Trematoda/*isolation & purification
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