Trematode infections in the small intestine of <i>Egretta alba modesta</i> in Kangwon-do

, Ryang, Y S; , Ahn, Y K; , Yoon, M B

doi:1991.29.3.227

Korean J Parasito > Volume 29(3):1991 > Article

Original Article


Korean J Parasitol. 1991 Sep;29(3):227-233. Korean. Published online Mar 20, 1994. http://dx.doi.org/10.3347/kjp.1991.29.3.227
Copyright © 1991 by The Korean Society for Parasitology


Trematode infections in the small intestine of Egretta alba modesta in Kangwon-do
Y S Ryang,Y K Ahn,^* and M B Yoon^**
Department of Medical Technology, College of Health Sciences, Wonju College of Medicine, Yonsei University, Wonju 220-050, Korea.
^*Department of Pathology, Wonju College of Medicine, Yonsei University, Wonju 220-050, Korea.
^**Department of Biology, College of Liberal Arts and Sciences, Kyung Hee University, Seoul 130-701, Korea.


Abstract
We surveyed 12 migrating large egrets, Egretta alba modesta, for their infection status with intestinal trematodes, from June to September, 1990. All of them were infected with one or more flukes. Total 5 species were identified. Their infection rates and total numbers of worms were Metagonimus sp. 67% and 1,412, Centrocestus armatus 67% and 2,306, Echinochasmus japonicus 50% and 99, Strigea falconis 83% and 635, and a diplostomid fluke 33% and 36. The number of worms in a bird was in the range from 6 to 896. This is the first record that the egret is a reservoir host of Metagonimus sp., C. armatus, E. japonicus, and S. falconis. S. falconis is a new parasite fauna in Korea. Migrating birds must play an important role in the transmission and spreading of these intestinal trematodes in Korea.

Figures

Fig. 1-5
Fig. 1. Ventral view of Metagonimus sp., stained with Semichon's acetocarmine(scale: 200µm).

Fig. 2. Ventral view of Echinochasmus japonicus, stained with Semichon's acetocarmine(scale: 200µm).

Fig. 3. Ventral view of Centrocestus armatus, stained with Semichon's acetocarmine(scale: 200µm).

Fig. 4. Ventral view of a diplostomid worm, stained with Semichon's acetocarmine(scale: 200µm).

Fig. 5. Lateral view of Strigea falconis, with Semichon's acetocarmine(scale: 200µm).

Tables


	Table 1 Infection status of intestinal flukes in egrets, Egretta alba modesta(J.E. Gray) in Hoengseong, Kangwon-do, Korea

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