완도 넙치(Paralichthys olivaceus) 양식장에서 발생한 여윔증 원인체 Enteromyxum leei에 대한 사례 보고
Case report of Enteromyxum leei, the causative agent of emaciation disease in olive flounder (Paralichthys olivaceus) farm in Wando
4
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Enteromyxum leei, a pathogen primarily associated with emaciation signs in olive flounder (Paralichthys olivaceus), has been reported only in Jeju Island. However, this study documents the first confirmed case of E. leei in a fish farm located in Wando, Korea a region other than Jeju Island. All six fish were observed significant numbers of vegetative spores. Polymerase chain reaction (PCR) analysis using E. leei specific primers revealed clear bands in all samples, with notably intense and bright bands in sample 6, which corresponded with the highest spore count. The rise in water temper- atures in Korean waters, linked to global warming, may facilitate the spread of E. leei beyond Jeju, posing an increasing threat to the national aquaculture industry. Analysis of water temperatures, Dongchon, Wando observation site revealed a progressive increase in September and October temper- atures from 2020 to 2023, with a notable rise from 22.7℃ in September 2020 to 26.1℃ in September 2023, comparable to Sinsan, Jeju observation sites at 26.8℃. Given E. leei preference for warm waters above 20℃ and rapid spread at temperatures around 25℃, this study indicates that further increases in water temperature may expand the range and impact of E. leei in Korea
Abstract
Enteromyxum leei, a pathogen primarily associated with emaciation signs in olive flounder (Paralichthys olivaceus), has been reported only in Jeju Island. However, this study documents the first confirmed case of E. leei in a fish farm located in Wando, Korea a region other than Jeju Island. All six fish were observed significant numbers of vegetative spores. Polymerase chain reaction (PCR) analysis using E. leei specific primers revealed clear bands in all samples, with notably intense and bright bands in sample 6, which corresponded with the highest spore count. The rise in water temper- atures in Korean waters, linked to global warming, may facilitate the spread of E. leei beyond Jeju, posing an increasing threat to the national aquaculture industry. Analysis of water temperatures, Dongchon, Wando observation site revealed a progressive increase in September and October temper- atures from 2020 to 2023, with a notable rise from 22.7℃ in September 2020 to 26.1℃ in September 2023, comparable to Sinsan, Jeju observation sites at 26.8℃. Given E. leei preference for warm waters above 20℃ and rapid spread at temperatures around 25℃, this study indicates that further increases in water temperature may expand the range and impact of E. leei in Korea
참고문헌 (21)
- Dutheil, C., "Understanding past and future sea surface temperature trends in the Baltic Sea", Clim Dyn., 58(11), pp.3021~3039 (2022)[DOI]
- Fontes, I., "Myxozoan evolution, ecology and development", pp.317~341 (2015)
- Freeman, M. A., "A novel histozoic myxosporean, Enteromyxum caesio n. sp., infecting the redbelly yellowtail fusilier, Caesio cuning, with the creation of the Enteromyxidae n. fam., to formally accommodate this commercially important genus", PeerJ., 8, pp.e9529~ (2020)[DOI]
- Johnson, G. C., "Warming trends increasingly dominate global ocean", Nat Clim Chang, 10(8), pp.757~761 (2020)[DOI]
- Lee, M. O., "Characteristics of sea surface temperature (SST) and sea level rise (SLR) in the Korean coastal waters", J. Korean Soc. Mar. Environ. Energy, 27(3), pp.167~177 (2024)[DOI]
- Lee, Y. J., "Comparison of specificity and sensitivity of diagnostic methods for Enteromyxum leei and Enteromyxum fugu detected from cultured tiger puffer, Takifugu rubripes in Korea", J Fish Dis, 47(1), pp.e13865~ (2024)[DOI]
- Annual report for Climate change Trends in fisheries, "NIFS", ~ (2022)
- "Emaciation disease of cultured tiger puffer Takifugu rubripes" (2001)[URL]
- Palenzuela, O., "Description of Enteromyxum scophthalmi gen. nov., sp. nov.(Myxozoa), an intestinal parasite of turbot (Scophthalmus maximus L.) using morphological and ribosomal RNA sequence data", Parasitology, 124(4), pp.369~379 (2002)[DOI]
- Sekiya, M., "Enteromyxum leei (Myxosporea:Bivalvulida) as the cause of myxosporean emaciation disease of farmed olive flounders (Paralichthys olivaceus) and a turbot (Scophthalmus maximus)on Jeju Island, Korea", Parasitol. Res, 115, pp.4229~4237 (2016)[DOI]
- Shim, J. D., "Monitoring of the mortalities in oliver flounder (Paralichthys olivaceus) farms of Korea", J. Fish Pathol, 32(1), pp.29~35 (2019)[DOI]
- Shin, S. P., "Infection of Enteromyxum leei in cultured starry flounder Platichthys stellatus", Fish Aquatic Sci., 26(3), pp.234~240 (2023)[DOI]
- Sitjà-Bobadilla, A., "Fish parasites: pathobiology and protection", pp.163~176 (2012), CABI
- Sohn, H., "Infection dynamics of Enteromyxum leei (Myxozoa, Myxosporea) in culture water and its effects on cultured olive flounder, Paralichthys olivaceus (Temminck & Schlegel)", J Fish Dis, 44(9), pp.1475~1479 (2021)[DOI]
- Tun, T., "Pathological changes induced by three myxosporeans in the intestine of cultured tiger puffer, Takifugu rubripes (Temminck and Schlegel)", J Fish Dis, 25(2), pp.63~72 (2002)[DOI]
- Tun, T., "Myxosporeans and their hyperparasitic microsporeans in the intestine of emaciated tiger puffer", Fish Pathol, 35(3), pp.145~156 (2000)[DOI]
- Yanagida, T., "Molecular and morphological redescriptions of enteric myxozoans, Enteromyxum ieei (formerly Myxidium sp. TP) and Enteromyxum fugu comb. n.(syn. Myxidium fugu)from cultured tiger puffer", Fish Pathol, 39(3), pp.137~143 (2004)[DOI]
- Yanagida, T., "Myxosporean emaciation disease of cultured red sea bream Pagrus major and spotted knifejaw Oplegnathus punctatus", Fish Pathol, 43(1), pp.45~48 (2008)[DOI]
- Yanagida, T., "Temperature effects on the development of Enteromyxum spp.(Myxozoa) in experimentally infected tiger puffer, Takifugu rubripes (Temminck & Schlegel)", J Fish Dis, 29(9), pp.561~567 (2006)[DOI]
- Yasuda, H., "Occurrence of the myxosporean emaciation disease caused by Enteromyxum leei in cultured Japanese flounder Paralichthys olivaceus", Fish Pathol, 40(4), pp.175~180 (2005)[DOI]
- Yokoyama, H., "Health and environment in aquaculture" (2012)