Euclinostomum heterostomum (Rudolphi, 1809) Metacercarial Infection in Three Osphronemid Fish Specieshree Osphronemid Fish Species



Trematode metacercariae, Euclinostomum heterostomum from naturally infested osphronemid fish in Thailand were investigated. Encysted musculature was observed in the case of heavy infestation in all three osphronemid fish species, Trichopsis vittata, Betta splendens and Betta imbellis. Infected fish showed tubercle-like thickened areas of different size, 0.2 - 0.5 cm which appear on the skin. A histological study showed metacercaria were enclosed by a thin sheet of connective tissue. This is a new recorded host of E. heterostomum.


Euclinostomum heterostomum, metacercaria, Osphronemid fishes, Thailand

Full Text:



AP Vankara, G Mani and C Vijayalakshmi. A report on various digenetic metacercariae from the freshwater fishes of River Godavari, Rajahmundry. J. Parasi. Dis. 2011; 35, 177-85.

E Steele and T Hicks. Histological effect of Ascocotyle tenuicollis (Digenea: Heterophyidae) metacercarial infection on the heart of Fundulus heteroclitus (Teleostei: Cyprinodontidae). Journal of the South Carolina Academy of Science 2003; 1, 10-8.

HS Singh, A Chaudhary and A Halajian. Further observations on Clinostomum piscidium Southwell and Prashad, 1918 recovered from the body cavity of Colisa fasciata (Bloch and Schneider, 1801) in India. Sci. Parasitol. 2010; 11, 55-60.

T Yooyen, C Wongsawad, K Kumchoo and M Chaiyapo. A new record of Clinostomum philippinensis (Valasquez, 1959) in Trichopodus microlepis (Günther, 1861) from Bung Borapet, Nakhon Sawan, Thailand. Southeast Asian J. Trop. Med. Public Health 2006; 37, 99-103.

S Yamaguti. Systema Helminthum. Vol I. The digenetic trematodes of vertebrates. Part I and II. Interscience Pub Inc, New York, 1958.

S Yamaguti. Synopsis of digenetic trematodes of vertebrates. Vol I. Keigaku Publishing Company, Tokyo, 1971.

Z Kabata. Parasites and diseases of fish culture in the tropics. Taylor and Franks (Ltd. Basingstoke Hants), Great Britain, 1985.

I Kanev, V Radev and B Fried. Family Clinostomidae LÜhe, 1901. In: DI Gibson, A Jones and RA Bray (eds.). Keys to the Trematode Volume 1. CAB international, New York, 2002, p. 113-20.

F Perveen, GS Shaikh, FM Bilqees and N Khatoon. A new metacercarial form Euclinostomum robustum (Trematoda: Clinostomidae: Euclinostominae) from a fresh water fish of Sindh, Pakistan. Proc. Parasitol. 2011; 52, 35-41.

KC Pandey and SC Baugh. An apharyngeal form, Metaclinostomum srivastavai n. g., n. sp. In: KS Singh and BK Tandan (eds.). Studies on clinostome metacercariae IV, 1970, p. 407-16.

FM Bilqees. Freshwater fish trematodes of Pakistan III. Metacercarial forms of Euclinostomum Travassos, 1928 from Ophiocephalus spp. Acta Parasitol. Pol. 1972; 20, 55-62.

Y Aohagi, T Shibahara, N Machida, Y Yamaga, K Kagota and T Hayashi. Natural infections of Clinostomum complanatum (Trematoda: Clinostomatidae) in wild herons and egrets, Tottori Prefecture, Japan. J. Wildlife Dis. 1992; 28, 470-1.

D Chung, H Kong and C Moon. Demonstration of the second intermediate hosts of Clinostomum complanatum in Korea. Korean J. Parasitol. 1995; 33, 305-12.

Z Abd Al Aal, OH Amer, AII Badawy and AMM El-Ashram. Digenetic trematodes of the little egret, Egretta garzetta, and possibility of transmission to Oreochromis niloticus at El-abbassa fish farms, Egypt. In: Proceeding of the 8th International Symposium on Tilapia in Aquaculture. 2008, p. 1351-64.

BOMOSA. Integrating BOMOSA cage fish farming system in reservoirs, ponds and temporary water bodies in Eastern Africa. Deliverable 4.7: Final report of veterinary and public health aspects (results of surveys and recommendations). Project no. 032103, 2008.

J DÖnges. The life cycle of Euclinostomum heterostomum (Rudolphi, 1809) (Trematoda: Clinostomatidae). Int. J. Parasitol. 1974; 4, 79-90.

K Jhansilakshmibai and R Madhavi. Euclinostomum heterostomum (Rudolphi, 1809) (Trematoda): life-cycle, growth and development of the metacercaria and adult. Syst. Parasitol. 1997; 38, 51-64.

I Paperna. Parasites, infections and diseases of fishes in Africa - an update. FAO CIFA Technical Paper 31, 1996.

SM Aboel Hadid and HS Lotfy. Some studies on helminth parasites of buff backed heron (Ardeola ibis ibis) with special reference to its role in transmission of Clinostomum complanatum in Beni-Suef Governorate. In: Proceeding of the 5th Scientific Conference. 2007, p. 135-41.

AG Canaris and SL Gardner. Bibliography of Helminth Species Described from African Vertebrates 1800 - 1967. Faculty Publications from the Harold W. Manter Laboratory of Parasitology, Available at:

GA Taher. Some studies on metacercarial infection in Oreochromis niloticus in assiut governorate and their role in transmission of some trematodes to dogs. Ass. Univ. Bull. Environ. Res. 2009; 12, 63-79.

SM Agarwal. Further observations on Euclinostomum indicum Bhalerao, 1942. Indian J. Helminth. 1958; 10, 31-9.

T Orecka-Grabda. Hemato-and histopathological changes in the whitefish (Coregonus albula (L.) invaded by metacercariae of Cotylurus erraticus (Syn. Ichthyocotylurus) (Rudolphi, 1809). Acta Ichthyologica et Piscatorial 1991; 21, 3-19.

EO Onuoha. Liver pathology of the african catfish, Clarias gariepinus infected with Euclinostomum clarias metacercariae in Anambra river basin, Nigeria. Anim. Res. Int. 2010; 7, 1151-5.

HMG Ezenwaji. The biology of Clarias ebriensis Pellegrin, 1920 (Osteichthyes: Clariidae) in an African rainforest river basin. Fish. Res. 2002; 54, 235-52.

HMG Ezenwaji and NM Inyang. Observations on the biology of Clarias agboyiensis Syndenham, 1980 (Osteichthyes: Clariidae) in the Anambra floodriver system, Nigeria. Fish. Res. 1998; 36, 47-60.

J Britz, JG Van As and JE Saayman. Occurrence and distribution of Clinostomum tilapiae Ukoli, 1966 and Euclinostomum heterostomum (Rudolphi, 1809) metacercarial infections of freshwater fish in Venda and Lebowa, South Africa. J. Fish Biol. 1985; 26, 21-8.

AK Sinha, C Sinha and R Nikhil. Studies on yellow grub disease of fresh water fish, Channa punctatus. Current Science 1988; 57, 218-9.

PC Echi, JE Eyo and FC Okafor. Co-parasitism and morphometrics of three clinostomatids (digenea: clinostomatidae) in sarotherodon melanotheron from a tropical freshwater lake. Anim. Res. Int. 2009; 6, 982-6.

KJ Chandra. A note on the metacercaria of Euclinostomum multicaecum Tubangui and Masilunoan 1935 from freshwater fishes of Bangladesh. Bangladesh J. Aquacult. 1983; 2-5, 91-3.

KJ Chandra. Nature of Euclinostomum multicaecum Tubangui & Masilungan, 1935 (Clinostomidae: Digenea) infestation in Channa punctatus [sic] (Bloch). Bangladesh Vet. J. 1984; 18, 49-54.

KJ Chandra. Nature of metacercariae of Euclinostomum multicaecum (Clinostomidae: Trematoda) infestation of Channa punctata (Bloch). 1. Mode of attachment, nature of distribution on the host and incidence and intensity of infestation. In: Proceedings of the 9th Bangladesh Science Conference, Bangladesh Agriculture Research Council & Bangladesh Jute Research Institute, Dhaka. Bangladesh Association for the Advancement of Science. 1984, p. 128.

MM Huq, MS Hossain, MR Amin and MA Islam. A survey on the helminth parasites of lata (Channidae) in and around the Bangladesh Agricultural University campus, Mymensingh. Bangladesh J. Agricult. Sci. 1983; 10, 67-72.

MS Hossain, MM Huq, A Islam and MR Amin. A survey on the helminth parasites of lata (Channidae) in and around the Bangladesh Agricultural University campus, Mymensingh. In: Proceedings of the 6th-7th Annual Bangladesh Science Conference, Joydebpur. 1982, p. 131.

P Ramasamy, GP Brennan and K Stalin. Ultrastructure of the digestive and protonephridial systems of the metacercaria of Euclinostomum multicaecum. J. Helminthol. 1998; 72, 243-9.

JR Arthur and ATA Ahmed. Checklist of the parasites of fishes of Bangladesh. FAO Fisheries Technical Paper. No. 369/1. Rome, FAO, 2002, p. 77.

JR Arthur and BQ Te. Checklist of the parasites of fishes of Viet Nam. FAO Fisheries Technical Paper. No. 369/2. Rome, FAO, 2006, p. 133.

IAM Eissa, MS Gado, AM Laila, SZ Mona and AE Noor El-Deen. Field studies encysted metacercariae infested natural male tilapias and monosex tilapias in Kafrel sheikh governorate fish farms. Life Sci. J. 2011; 8, 7-12.

N Suanyuk and S Mankhakhet. Euclinostomum sp. infection in guppy Poecilia reticulata in Southern Thailand. In: Proceeding of the 9th Asian fisheries and aquaculture forum Shanghai Ocean University, China, 2011, p. 57-8.

T Laoprasert, S Naksuwon, W Maneepitaksanti and S Chinabut. Parasitic digenean Euclinostomum sp. (Trematoda: Clinostomatodae) in Guppy (Poecilia reticulata). Thai Fisheries Gazette 2006; 59, 323-31.


  • There are currently no refbacks.

Online ISSN: 2228-835X

Last updated: 20 June 2019