Parasites, Hosts and Diseases

The Korea Society for Parasitology and Tropical Medicine (대한기생충학·열대의학회)
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Discovery of Maritrema obstipum (Digenea: Microphallidae) from Migratory Birds in Korea

  • Chung, Ok-Sik (Division of Ecology and Environment, Chungnam Development Institute) ;
  • Sohn, Woon-Mok (Department of Parasitology, Biomedical Center for Brain Korea 21 an Institute of Health Science Gyeongsang National University School of Medicine) ;
  • Chai, Jong-Yil (Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine) ;
  • Seo, Min (Department of Parasitology and Research Center for Mummy, College of Medicine, Dankook University) ;
  • Lee, Hye-Jung (Department of Parasitology and Research Center for Mummy, College of Medicine, Dankook University)
  • Received : 2011.07.04
  • Accepted : 2011.09.21
  • Published : 2011.12.15
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Abstract

Adults of Maritrema obstipum (Digenea: Microphallidae) were found in the intestines of 4 species of migratory birds, including the sanderling (Crocethia alba), Kentish plover (Charadrius alexandrines), Mongolian plover (Charadrius mongolus), and red-necked stint (Calidris ruficollis), collected from Yubu Island, Chungcheongnam-do, Korea. The worms of were $451{\times}265{\mu}m$ in size, and were easily identifiable as Maritrema species by the presence of the cirrus sac, and the ring-like distribution of the vitellaria. More specifically, the ejaculatory duct curved posteromedially, and the 2 parts of vitelline follicles were found to be distinct at the posterior end. The eggs were brown-colored, and $19.8{\times}12.3{\mu}m$ in size. All these findings implicated M. obstipum as the pertinent species of the worms. Beside these, adult worms of Gynaecotyla squatarolae, Parvatrema duboisi, and Acanthoparyphium sp. were also discovered. This is the first report establishing migratory birds as the natural definitive hosts for M. obstipum.

Keywords

References

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