Korean J Parasitol.  2011 Dec;49(4):457-460. 10.3347/kjp.2011.49.4.457.

Discovery of Maritrema obstipum (Digenea: Microphallidae) from Migratory Birds in Korea

Affiliations
  • 1Division of Ecology and Environment, Chungnam Development Institute, Gongju 314-140, Korea.
  • 2Department of Parasitology, Biomedical Center for Brain Korea 21 an Institute of Health Science Gyeongsang National University School of Medicine, Jinju 660-751, Korea.
  • 3Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea.
  • 4Department of Parasitology and Research Center for Mummy, College of Medicine, Dankook University, Cheonan 330-714, Korea. kardia84@naver.com

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 451x265 microm 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 19.8x12.3 microm 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.

Keyword

Maritrema obstipum; sanderling; Kentish plover; Mongolian plover; red-necked stint

MeSH Terms

Animals
Bird Diseases/*parasitology
Charadriiformes/*parasitology
Host Specificity
Intestines/parasitology
Islands
Republic of Korea
Trematoda/anatomy & histology/classification/*isolation & purification
Trematode Infections/parasitology/*veterinary
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