El vison americano como nuevo hospedador de helmintos en norpatagonia
; Piudo, Luciana ; Monteverde, Martin ; González, Alejandro ; Forlenza, María Celeste ; Guichon, Maria Laura 
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Fecha
02/2026
Editorial
Sociedad Argentina para el Estudio de los Mamíferos
Revista
Mastozoología Neotropical
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0327-9383
eISSN
1666-0536
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Resumen
El visón americano Neogale vison (Schreber, 1777) es un mustélido nativo de América del Norte, introducido en la Patagonia Argentina en la década de 1930 con nes peleteros. Actualmente ocupa diversos cuerpos de agua en ambientes naturales y urbanos, posee impactos negativos sobre los sistemas naturales y productivos, y representa un riesgo sanitario. Dado que los estudios parasitológicos del visón americano en la Argentina son escasos, el objetivo de este trabajo fue describir los helmintos asociados a esta especie en el sur de la provincia de Neuquén y actualizar el registro de todas las especies de helmintos gastrointestinales halladas en su área de distribución nativa e introducida. Se colectaron muestras de 86 individuos obtenidos en el marco de acciones de control poblacional y de ejemplares encontrados muertos entre 2011-2022 en las cercanías de las localidades Junín de los Andes, San Martín de los Andes y Aluminé. Se hallaron helmintos en el 7 % de los visones analizados; solo se registraron parásitos en muestras del tracto digestivo, dado que las muestras de corazón, pulmón, hígado y riñón no presentaron helmintos. Se identi caron los nematodes Pterygodermatites (Paucipectines) sp. (Rictulariidae), Physaloptera sp. (Physalopteridae), individuos pertenecientes la familia Ascarididae y acantocéfalos del género Polymorphus (Polymorphidae). Los helmintos gastrointestinales hallados en este trabajo fueron citados previamente para el visón americano, pero constituyen el primer registro para esta especie en Argentina. Physaloptera sp. y Polymorphus sp. se registran por primera vez en esta especie hospedadora en su rango de distribución introducido. Los parásitos hallados tienen un modo de vida indirecto y fueron registrados para otros hospedadores en la región. Continuar con los estudios parasitológicos permitirá comprender cual es el rol que cumple esta especie de mustélido en el mantenimiento y la transmisión de especies de helmintos presentes en la Patagonia.
The American mink Neogale vison (Schreber, 1777) is a mustelid species native to North America that was introduced into the Argentinian Patagonia in the 1930s for fur farming. It currently occupies di erent types of water bodies in both natural and urban areas. It has negative impacts on natural and productive systems and poses health risks. Since parasitological studies of the American mink in Argentina are scarce, the aim of this study was to describe the helminths of this species in the southern region of the Neuquén province and to update the records of all the gastrointestinal helminths reported for the American mink, both its native and introduced distributions. Samples of 86 individuals were obtained in the context of population control actions and also from road-killed individuals between 2011 and 2022 near the towns of Junín de los Andes, San Martín de los Andes, and Aluminé. Helminths were found only in 7 % of the American minks analyzed, parasites were only recorded in samples of the gastrointestinal tract while no helminths were found in the heart, lung, liver, and kidney. The nematodes Pterygodermatites (Paucipectines) sp. (Rictulariidae), Physaloptera sp. (Physalopteridae) nematodes, and individuals of the family Ascarididae, and acantocephalans of the genus Polymorphus (Polymorphidae) were identi ed. The gastrointestinal helminths found in this study have been previously cited for American mink, but they constitute the rst record for this species in Argentina. Physaloptera sp. and Polymorphus sp. are reported for the rst time for this host species in the introduced range.
The American mink Neogale vison (Schreber, 1777) is a mustelid species native to North America that was introduced into the Argentinian Patagonia in the 1930s for fur farming. It currently occupies di erent types of water bodies in both natural and urban areas. It has negative impacts on natural and productive systems and poses health risks. Since parasitological studies of the American mink in Argentina are scarce, the aim of this study was to describe the helminths of this species in the southern region of the Neuquén province and to update the records of all the gastrointestinal helminths reported for the American mink, both its native and introduced distributions. Samples of 86 individuals were obtained in the context of population control actions and also from road-killed individuals between 2011 and 2022 near the towns of Junín de los Andes, San Martín de los Andes, and Aluminé. Helminths were found only in 7 % of the American minks analyzed, parasites were only recorded in samples of the gastrointestinal tract while no helminths were found in the heart, lung, liver, and kidney. The nematodes Pterygodermatites (Paucipectines) sp. (Rictulariidae), Physaloptera sp. (Physalopteridae) nematodes, and individuals of the family Ascarididae, and acantocephalans of the genus Polymorphus (Polymorphidae) were identi ed. The gastrointestinal helminths found in this study have been previously cited for American mink, but they constitute the rst record for this species in Argentina. Physaloptera sp. and Polymorphus sp. are reported for the rst time for this host species in the introduced range.
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