TREMATODE INFECTIONS IN SNAILS FROM SMALL CANALS SUPPLYING WATER TO CATFISH PONDS IN BINH CHANH, HO CHI MINH CITY, VIETNAM
Main Article Content
Abstract
Foodborne zoonotic trematodes are an important public health concern in many countries, particularly in Southeast Asia. Previous studies have shown that pond-cultured catfish (Pangasius larnaudii and Pangasianodon hypophthalmus) in Binh Chanh, Ho Chi Minh City, are infected with fish-borne zoonotic trematodes (FZT). This study investigated whether water-supply canals contribute to transmission by carrying infected intermediate hosts and/or cercariae into catfish ponds. Snails were collected from 16 small canals supplying water directly to catfish ponds in Binh Chanh in January 2023 (dry season) and June 2023 (wet season) and examined for trematode larvae. A total of 2,065 snails representing nine species were examined. Four species—Indoplanorbis exustus, Lymnaea viridis, Bithynia siamensis, and Melanoides tuberculata—were infected with cercariae. Four cercarial morphotypes were identified: furcocercous, pleurolophocercous, xiphidio, and echinostome cercariae. Further studies should examine all water sources and seasonal patterns to inform trematode control, support the production of cercaria-free catfish, and promote sustainable aquaculture and food safety.
Keywords
canals, catfish, cercariae, fish-borne zoonotic trematodes, snails
Article Details
References
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Ngo, T. T. T., & Tran, N. C. (2016). Effects of density of golden apple snail (Pomacea canaliculata) on growth and survival rate of Pila polita. Can Tho University Journal of Science 42, 56-64. https://doi.org/10.22144/ctu.jvn.2016.007
Nkwengulila, G., & Kigadye, E. S. P. (2005). Occurrence of digenean larvae in freshwater snails in the Ruvu basin, Tanzania. Tanz. J. Sci. 31, 23-30. https://doi.org/10.4314/tjs.v31i2.18417
Pham, C. T. (2023). Snail Composition and Its Cercariae in Hiep Phuoc Rice Field of Nha Be District, Ho Chi Minh City, Vietnam. Tra Vinh University Journal of Science 13, 53-58. https://doi.org/10.35382/tvujs.13.2.2023.1936
Pham, C. T., Dalsgaard, A., Bui, N. T., Olsen, A., & Murrell, K. D. (2007). Prevalence of fishborne zoonotic parasites in important cultured fish species in the Mekong Delta, Vietnam. Parasitol. Res. 101, 1277-1284. https://doi.org/10.1007/s00436-007-0633-5
Pham, C. T., Dalsgaard, A., Nguyen, T. N., Olsen, A., & Murrell, K. D. (2009). Prevalence of zoonotic trematode parasites in fish fry and juveniles in fish farms of the Mekong Delta, Vietnam. Aquaculture 295, 1-5. https://doi.org/10.1016/j.aquaculture.2009.06.033
Pham, C. T., & Nguyen, T. L. (2023). The composition of snail species in Ba Ty and Ba Lao canals in Binh Chanh District, Ho Chi Minh City, Vietnam. Ho Chi Minh City University of Uducation Journal of Science 20, 717-726. https://doi.org/10.54607/hcmue.js.20.4.3783(2023)
Pham, C. T., Nguyen, T. L., Tran, T. P. D., Vo, V. T., & Nguyen, M. H. (2022). Freshwater Snail Diversity and Trematode Prevalence (Cercariae Stage) in Snails in Small Canals of Cu Chi District, Ho Chi Minh City. Ho Chi Minh City University of Education Journal of Science 19, 1623-1630. https://doi.org/10.54607/hcmue.js.19.10.3577(2022)
Pham, C. T., & Murrell, K. D. (2020). Seasonal prevalence of zoonotic trematode parasites in commercial catfish species in the Ho Chi Minh City area. Aquaculture Reports 17, 100315. https://doi.org/10.1016/j.aqrep.2020.100315
Pham, C. T., & Duong, T. Q. (2023). The composition of snail species and cercariae in snails in the rice field of Cu Chi district, Ho Chi Minh City, Vietnam. Ho Chi Minh City University of Education Journal of Science 20, 808-817. https://doi.org/10.54607/hcmue.js.20.5.3808(2023)
Pham, C. T., Nguyen, T. L. X., & Duong, T. Q. (2023). Research on the composition of snail species and cercariae in snails in Tan Nhut rice field of Binh Chanh District, Ho Chi Minh City, Vietnam. Ho Chi Minh City University of Education Journal of Science 20, 957-967. https://doi.org/10.54607/hcmue.js.20.6.3844(2023)
Pham, N. D., Hoang, V. H., Bui, T. D., & Ho, T.L. (2019). Infection status and molecular identification of digenean cercariae in snails in Kim Son district, Ninh Binh Province and Ba Vi district, Ha Noi. Academia Journal of Biology 41, 31-38. https://doi.org/10.15625/0866-7160/v41n3.13893
Pham, N. D., & Nguyen, T. L. (2005). Identical characteristics of Trematode cercaria groups and differentiation of Cercaria of Fasciola gigantica Cobbold, 1885 in snails Lymnaea in Vietnam. Academia Journal of Biology 27, 31-36
Phan, T. V., Ersboll, A. K., Nguyen, V. K., Madsen, H., & Dalsgaard, A. (2010). Farm-level risk factors for fish-borne zoonotic trematode infection in integrated small-scale fish farms in northern Vietnam. PLoS Negl. Trop. Dis. 4, e742. https://doi.org/10.1371/journal.pntd.0000742
Schell, S. C. (1985). Handbook of trematodes of North America north of Mexico, Idaho
Thai, T. B. (2022). Invertebrates. Vietnam Education Publishing House
Trinh, T. K. C., Dalsgaard, A., Turnbull, J. F., Pham, A. T., & Murrell, K. D. (2008). Prevalence of zoonotic trematodes in fish from a Vietnamese fish-farming community. J. Parasitol. 94, 423-428. https://doi.org/10.1645/GE-1389.1
WHO (1995). Control of foodborne trematode infections: report of a WHO Study Group. World Health Organization
WHO (2002). Foodborne trematode infections in Asia, Ha Noi, Vietnam
Bui, T. D., Madsen, H., & Dang, T. T. (2010). Distribution of freshwater snails in family-based VAC ponds and associated waterbodies with special reference to intermediate hosts of fish-borne zoonotic trematodes in Nam Dinh Province, Vietnam. Acta Trop. 116, 15-23. https://doi.org/10.1016/j.actatropica.2010.04.016
Chai, J. Y., Murrell, K. D, & Lymbery, A. J. (2005). Fish-borne parasitic zoonoses: status and issues. Int. J. Parasitol. 35, 1233-1254. https://doi.org/10.1016/j.ijpara.2005.07.013
Chai, J.Y., & Lee, S. H. (2002). Food-borne intestinal trematode infections in the Republic of Korea. Parasitol. Int. 51, 129-154. https://doi.org/10.1016/s1383-5769(02)00008-9
Dang, N. T., Thai. T. B., & Pham, V. M. (1979). Identification of invertebrates in the North of Vietnam. Technology and Science Publishing House, Ha Noi, Vietnam
De Brito, F .C., & Joshi, R. C. (2016). The Golden Apple Snail Pomacea canaliculata: a Review on Invasion, Dispersion and Control. Outlooks on Pest Management 27, 157-163. https://doi.org/10.1564/v27_aug_03
Dinh, T. T., Kania, P., & Buchmann, K. (2010). Infection status of zoonotic trematode metacercariae in Sutchi catfish (Pangasianodon hypophthalmus) in Vietnam: Associations with season, management and host age. Aquaculture 302, 19-25. https://doi.org/10.1016/j.aquaculture.2010.02.002
Frandsen, F., & Christensen, N. O. (1984). An introductory guide to the identification of cercariae from African freshwater snails with special reference to cercariae of trematode species of medical and veterinary importance. Acta Trop. 41, 181-202
Keiser, J., & Utzinger, J. (2005). Emerging foodborne trematodiasis. Emerg. Infect. Dis. 11, 1507-1514. https://doi.org/10.3201/eid1110.050614
Madsen, H., Bui, T. D., Dang, T. T., Nguyen, V. K., Dalsgaard, A., & Phan, T. V. (2015a). The role of rice fields, fish ponds and water canals for transmission of fish-borne zoonotic trematodes in aquaculture ponds in Nam Dinh Province, Vietnam. Parasit & Vectors 8, 625. https://doi.org/10.1186/s13071-015-1237-z
Madsen, H., Pham, C. T., Ha, T. N. N., Clausen, J. H., Dalsgaard, A., & Murrel, K. D. (2015b). Two-year intervention trial to control of fish-borne zoonotic trematodes in giant gourami (Osphronemus goramy) and striped catfish (Pangasianodon hypophthalmus) in nursery ponds in the Mekong Delta, Vietnam. Acta Trop. 152, 201-207. https://doi.org/10.1016/j.actatropica.2015.09.012
Nguyen, D. T., Dalsgaard, A., Ly, T. T. L., & Murrell, K. D. (2007). Survey for zoonotic liver and intestinal trematode metacercariae in cultured and wild fish in An Giang Province, Vietnam. Korean J. Parasitol. 45, 45-54. https://doi.org/10.3347/kjp.2007.45.1.45
Nguyen, P. B. N., Nguyen, C. L, Vo, T. D., & Ngo, A. T. (2014). Infection of trematode larvae (Cercaria) in freshwater snails in two communes, An My and An Hoa, Tuy An district, Phu Yen province. Journal of Science-Fisheries Technology 1, 166-170
Nguyen, M. H., Do, T. D., Nguyen, T. L. A., Phan, T. V., Bui, N. T., Nguyen, V. H., Hoang, V. H., & Le, X. C. (2015). Current status of fish-borne zoonotic trematode infections in Gia Vien district, Ninh Binh province, Vietnam. Parasit & Vectors 8, 21. https://doi.org/10.1186/s13071-015-0643-6
Nguyen, T. D., & Pham, C. T. (2022). The composition and trematode infections in snails in small canals and rice fields in Binh Khanh and Ly Nhon communes, Can Gio district, Ho Chi Minh City. In: Scientific proceedings for Master and Doctoral students of Ho Chi Minh City University of Education in the school year of 2022-2023, Ho Chi Minh City, Vietnam, 32-42
Ngo, T. T. T., & Tran, N. C. (2016). Effects of density of golden apple snail (Pomacea canaliculata) on growth and survival rate of Pila polita. Can Tho University Journal of Science 42, 56-64. https://doi.org/10.22144/ctu.jvn.2016.007
Nkwengulila, G., & Kigadye, E. S. P. (2005). Occurrence of digenean larvae in freshwater snails in the Ruvu basin, Tanzania. Tanz. J. Sci. 31, 23-30. https://doi.org/10.4314/tjs.v31i2.18417
Pham, C. T. (2023). Snail Composition and Its Cercariae in Hiep Phuoc Rice Field of Nha Be District, Ho Chi Minh City, Vietnam. Tra Vinh University Journal of Science 13, 53-58. https://doi.org/10.35382/tvujs.13.2.2023.1936
Pham, C. T., Dalsgaard, A., Bui, N. T., Olsen, A., & Murrell, K. D. (2007). Prevalence of fishborne zoonotic parasites in important cultured fish species in the Mekong Delta, Vietnam. Parasitol. Res. 101, 1277-1284. https://doi.org/10.1007/s00436-007-0633-5
Pham, C. T., Dalsgaard, A., Nguyen, T. N., Olsen, A., & Murrell, K. D. (2009). Prevalence of zoonotic trematode parasites in fish fry and juveniles in fish farms of the Mekong Delta, Vietnam. Aquaculture 295, 1-5. https://doi.org/10.1016/j.aquaculture.2009.06.033
Pham, C. T., & Nguyen, T. L. (2023). The composition of snail species in Ba Ty and Ba Lao canals in Binh Chanh District, Ho Chi Minh City, Vietnam. Ho Chi Minh City University of Uducation Journal of Science 20, 717-726. https://doi.org/10.54607/hcmue.js.20.4.3783(2023)
Pham, C. T., Nguyen, T. L., Tran, T. P. D., Vo, V. T., & Nguyen, M. H. (2022). Freshwater Snail Diversity and Trematode Prevalence (Cercariae Stage) in Snails in Small Canals of Cu Chi District, Ho Chi Minh City. Ho Chi Minh City University of Education Journal of Science 19, 1623-1630. https://doi.org/10.54607/hcmue.js.19.10.3577(2022)
Pham, C. T., & Murrell, K. D. (2020). Seasonal prevalence of zoonotic trematode parasites in commercial catfish species in the Ho Chi Minh City area. Aquaculture Reports 17, 100315. https://doi.org/10.1016/j.aqrep.2020.100315
Pham, C. T., & Duong, T. Q. (2023). The composition of snail species and cercariae in snails in the rice field of Cu Chi district, Ho Chi Minh City, Vietnam. Ho Chi Minh City University of Education Journal of Science 20, 808-817. https://doi.org/10.54607/hcmue.js.20.5.3808(2023)
Pham, C. T., Nguyen, T. L. X., & Duong, T. Q. (2023). Research on the composition of snail species and cercariae in snails in Tan Nhut rice field of Binh Chanh District, Ho Chi Minh City, Vietnam. Ho Chi Minh City University of Education Journal of Science 20, 957-967. https://doi.org/10.54607/hcmue.js.20.6.3844(2023)
Pham, N. D., Hoang, V. H., Bui, T. D., & Ho, T.L. (2019). Infection status and molecular identification of digenean cercariae in snails in Kim Son district, Ninh Binh Province and Ba Vi district, Ha Noi. Academia Journal of Biology 41, 31-38. https://doi.org/10.15625/0866-7160/v41n3.13893
Pham, N. D., & Nguyen, T. L. (2005). Identical characteristics of Trematode cercaria groups and differentiation of Cercaria of Fasciola gigantica Cobbold, 1885 in snails Lymnaea in Vietnam. Academia Journal of Biology 27, 31-36
Phan, T. V., Ersboll, A. K., Nguyen, V. K., Madsen, H., & Dalsgaard, A. (2010). Farm-level risk factors for fish-borne zoonotic trematode infection in integrated small-scale fish farms in northern Vietnam. PLoS Negl. Trop. Dis. 4, e742. https://doi.org/10.1371/journal.pntd.0000742
Schell, S. C. (1985). Handbook of trematodes of North America north of Mexico, Idaho
Thai, T. B. (2022). Invertebrates. Vietnam Education Publishing House
Trinh, T. K. C., Dalsgaard, A., Turnbull, J. F., Pham, A. T., & Murrell, K. D. (2008). Prevalence of zoonotic trematodes in fish from a Vietnamese fish-farming community. J. Parasitol. 94, 423-428. https://doi.org/10.1645/GE-1389.1
WHO (1995). Control of foodborne trematode infections: report of a WHO Study Group. World Health Organization
WHO (2002). Foodborne trematode infections in Asia, Ha Noi, Vietnam