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

Brief Communication
Korean J Parasitol. 1991 Sep;29(3):311-313. English.
Published online Mar 20, 1994.  http://dx.doi.org/10.3347/kjp.1991.29.3.311
Copyright © 1991 by The Korean Society for Parasitology
Infection status of Pseudorasbora parva collected from the Sunam stream with metacercariae of Metorchis orientalis
W M Sohn
Department of Parasitology, College of Medicine, Inje University, Pusan 614-735, Korea.
Abstract

This study revealed the infection status of P. parva with the metacercariae of M. orientalis in the Sunam stream of the Nakdong River, a well-known focus of Clonorchis sinensis. A total of 60 P. parva were divided into 4 groups by the size (80-90, 70-79, 60-69 and 50-59 mm) and were digested by pepsin-HCl solution in a 36℃ incubator. The metacercariae of M. orientalis were collected and counted under a stereomicroscope. A total of 3,885 metacercariae were found, and average number/fish in each group were 143, 54, 23 and 40. They were 175.3 × 155.4 µm in average size and had thick cyst wall(13.1 µm in average). By the results, it is proved that the life cycle of M. orientalis is actively maintained in the Sunam stream of the Nakdong River.

Figures


Figs. 1-2
Fig. 1. Metacercariae of Metorchis orientalis (large-sized) and Clonorchis sinensis(smaller).

Fig. 2. Metacercaria of M. orientalis, showing the thick cyst wall, two suckers and excretory bladder(EB).

*Bar unit is micrometer.


Tables


Table 1
Infection status of Metorchis orientalis metacercariae in P. parva from the Sunam stream


Table 2
Metacercaria of M. orientalis metacercariae form P. parva

References
1. Hasegawa T. Okayama Igakkai Zasshi 1935;46(6):1397–1434.
2. Hsu HF, et al. Chinese Med J 1938;2(2) Suppl:433–440.
3. Hwang JT, et al. Kyungpook J Med 1980;21(2):460–475.
4. Joo CY. [Infestation of larval trematodes from fresh-water fish and brackish-water fish in River Hyungsan, Kyungpook Province, Korea]. Korean J Parasitol 1984;22(1):78–84.
 
5. Joo CY, Park MK, Choi DW. [Infestation Of Larval Trematodes From Fresh-Water Fish And Brackish-Water Fish In River Taechong, Kyungpook Province, Korea]. Korean J Parasitol 1983;21(1):6–10.
 
6. Lee JT. [Studies on the metacercariae from fresh water fishes in the Kum-Ho River]. Korean J Parasitol 1968;6(3):77–99.
 
7. Rhee JK, Lee HI, Baek BK, Kim PG. [Survey On Encysted Cercariae Of Trematodes From Fresh-Water Fishes In Mangyeong Riverside Area]. Korean J Parasitol 1983;21(2):187–192.
 
8. Rhee JK, Rim MH, Baek BK, Lee HI. [Survey On Encysted Cercaria Of Trematodes From Fresh-Water Fishes In Tongjin Riverside Areas In Korea]. Korean J Parasitol 1984;22(2):190–202.
 
9. Morishita K. Annotationes zoologicae Japonenses 1929;12:143–170.
10. Tanabe H. Acta Scholae Medicinalis Universitatis Imperialis in Kioto 1921;3:734–742.
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