The First Case of Capillaria hepatica Infection in a Nutria (Myocastor coypus) in Korea

Park, Jae Hak; Novilla, Meliton N.; Song, Juha; Kim, Kyung Sul; Chang, Seo Na; Han, Ju Hee; Lee, Byung Hee; Lee, Do Hun; Kim, Hyun Mac; Kim, Young Ha; Youn, Hee Jeong; Kil, Jihyon

doi:10.3347/kjp.2014.52.5.527

Cited by 9 publications

(5 citation statements)

References 10 publications

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“… Myocastor coypus , Nakdong River, Korea, Park et al . (2014). Myocastor coypus , Vogelsang & Espin (1949) cited in Babero & Lee (1961).…”

Section: Resultsmentioning

confidence: 99%

Updated checklist of helminths found in terrestrial mammals of Argentine Patagonia

Fugassa

2020

J. Helminthol.

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Abstract The aim of the present study was to evaluate the state of knowledge about the helminthology of wild mammals in Argentine Patagonia and its link with the conservation of parasite species and biodiversity. To this end, the information included in the previously reported checklist of the helminths found in terrestrial wild mammals of Argentine Patagonia was completed and updated. The methodology used for the search was the same as that previously used, with slight modifications. Eighty-two species of mammals currently inhabit the region, and an additional six species are considered to have become extinct before the 20th century. The reports used to complete and update the information correspond to research done since 2015 to date. Considering the number of records analysed in the previously reported checklist and those of the current update, a total of 1918 helminthological reports for current Patagonian mammals and 2141 on mammal species that inhabited Patagonia before the 20th century were accounted for. It is important to point out that 41% of the 82 species of wild mammals currently inhabiting Patagonia have not been studied helminthologically; 38% of these without helminthological records are either threatened or do not have categorization, and 79% of mammals without helminthological studies have some degree of endemism. Therefore, in order to evaluate conservation priorities, the information about the parasitic richness in Patagonian wild mammals should be substantially increased, especially in those endangered or endemic.

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“… Myocastor coypus , Nakdong River, Korea, Park et al . (2014). Myocastor coypus , Vogelsang & Espin (1949) cited in Babero & Lee (1961).…”

Section: Resultsmentioning

confidence: 99%

Updated checklist of helminths found in terrestrial mammals of Argentine Patagonia

Fugassa

2020

J. Helminthol.

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“…However, Capillaria hepatica infection in nutrias is relatively very rare, and its histopathological characteristics have not been reported in detail [15, 16, 19]. Therefore, we describe macro- and microscopic characteristics of C. hepatica infection of wild nutrias which were different from those observed in rats and mice.…”

mentioning

confidence: 85%

“…Although there have been no regular investigations of parasitic diseases in animals since then, we believe that the distribution of C. hepatica in our environment has decreased as has that of other parasites. However, there are still occasional reports of their occurrence in wildlife, such as a raccoon dog [14] and nutria [19]. C. hepatica infection of nutrias in other countries has been very rare compared to other parasite infections, with 3.6% and 1.9% infection rates were reported for Argentina and Japan, respectively [15, 16].…”

mentioning

confidence: 99%

Histopathological findings in wild Nutrias (<i>Myocastor coypus</i>) with <i>Capillaria hepatica</i> infection

Hong

Kang

Kim

et al. 2016

The Journal of Veterinary Medical Science

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Capillaria hepatica is a zoonotic nematode that uses rodents and other mammals as hosts, especially rats and mice, and causes hepatic granuloma and eventually fibrosis/cirrhosis. However, C. hepatica infection in nutria, a large semiaquatic rodent, has rarely been reported, and histopathologic features of the infection have not been described in detail. We conducted necropsy on 36 wild nutrias. Some animals were found to have milky spots, parasitic eggs and worms within hepatic microgranuloma involving central calcification with cell debris, macrophages, eosinophils and multinucleated giant cells (MGCs). Interestingly, the eggs were closely surrounded by MGCs and appeared to be destroyed without inducing further chronic changes. Based on microscopical examination, C. hepatica infection was diagnosed, and we describe its histopathological characteristics in wild nutrias.

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“…By 2014, they were present in 19 administrative districts, posing threats to agricultural and irrigation systems because of aggressive foraging and burrowing [9]. Nutria also have a negative impact on public health as they transmit zoonotic diseases, such as leptospirosis and toxoplasmosis [10,11].…”

Section: Introductionmentioning

confidence: 99%

Radio Tracking Reveals the Home Range and Activity Patterns of Nutria (Myocastor coypus) in the Macdo Wetland in South Korea

Banjade

Adhikari

Hong

et al. 2023

Animals

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Nutria (Myocastor coypus) are semi-aquatic rodents that were introduced in South Korea for commercial farming but significantly damaged aquatic ecosystems. Understanding nutria ecological behavior is essential for developing effective control and eradication strategies to mitigate their impacts. Thus, this study aimed to investigate the home range and activity patterns of 24 nutria (12 males and 12 females) in the Macdo wetland in South Korea from 2015–2016 through radio tracking. The average minimum convex polygon home range of the nutria was 0.29 ± 0.55 km2, with a 95% kernel density estimation (KDE) home range of 0.43 ± 0.85 km2 and a 50% KDE home range of 0.05 ± 1.1 km2. The home range of males was larger than that of females; however, the winter home range of females was as large as that of males. The home range also varied seasonally, with the smallest observed in winter. The nutria showed crepuscular and nocturnal activity patterns throughout the year, with no significant difference between sexes. The activities in spring, summer, and autumn showed no significant differences, but the activity in winter was significantly different from that in the other seasons. This study may serve as a basis for developing appropriately timed and scaled management strategies to mitigate the impacts of nutria on ecosystems. In conclusion, several environmental and biological factors contribute to the behavior of nutria in South Korea.

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The First Case of Capillaria hepatica Infection in a Nutria (Myocastor coypus) in Korea

Cited by 9 publications

References 10 publications

Updated checklist of helminths found in terrestrial mammals of Argentine Patagonia

Updated checklist of helminths found in terrestrial mammals of Argentine Patagonia

Histopathological findings in wild Nutrias (<i>Myocastor coypus</i>) with <i>Capillaria hepatica</i> infection

Radio Tracking Reveals the Home Range and Activity Patterns of Nutria (Myocastor coypus) in the Macdo Wetland in South Korea

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