Exploración coproparasitológica en zorros grises Lycalopex gymnocercus Fisher, 1814 de un humedal pampeano
; Petrigh, Romina Sandra 
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Fecha
06/2021
Editorial
Sociedad Chilena de Parasitología
Revista
Parasitología Latinoamericana
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Institución organizadora
ISSN
0717-7704
eISSN
0717-7712
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Español
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Resumen
El presente trabajo tiene como objetivo explorar la presencia de helmintos en heces de zorro gris (Lycalopex gymnocercus Fisher, 1814) en un humedal, especialmente, para identificar parásitos invasores. Se colectaron heces de carnívoros halladas en la zona de la Albúfera de Mar Chiquita, provincia de Buenos Aires, Argentina, que fueron sometidas a exámenes de ADN para corroborar su origen zoológico. Se realizaron exámenes parasitológicos mediante microscopía y la identidad de los helmintos más frecuentes fue corroborada mediante técnicas moleculares. Los resultados del análisis molecular de las heces mostraron ocho muestras positivas para cánidos, 2 para felinos y 1 para carnívoro. La secuencia de ADN de esta última correspondió a Lycalopex gymnocercus. El análisis microscópico permitió identificar 19 especies parasitarias. Digeneos y cestodes diphyllobothrideos fueron hallados en todas las heces, lo cual demuestra la importancia de los recursos acuáticos para estos carnívoros en el humedal. Aunque las poblaciones de zorros grises de la región pampeana están expuestos a una antigua invasión de especies exóticas, aquí, únicamente Eucoleus spp. podría tener origen en la introducción de perros y gatos al ecosistema.
In the present work, helminths was explored in carnivores feces that inhabit in a wetland of Buenos Aires province, Argentina. The aim of this exploratory study was to identify invasive parasites through microscopic and molecular tools. Carnivore feces were collected in Mar Chiquita lagoon, Buenos Aires Province, Argentina. Parasitological and ADN studies were performed. PCR amplifications showed that 8 samples were positive to canids, 2 samples to felids and 1 sample to carnivore. This carnivore DNA was sequenced and identified as Lycalopex gymnocercus. Likewise, 19 parasitic species were identified. Diphyllobothrid (Cestoda) and digenea parasites were found in all feces. These findings showed the importance of aquatic resources for these carnivores in the wetland. Although the pampas fox populations in the Pampean region have been exposed to an ancient invasion of exotic species, in this exploratory study only Eucoleus spp. could have been introduced by dogs and cats in this ecosystem.
In the present work, helminths was explored in carnivores feces that inhabit in a wetland of Buenos Aires province, Argentina. The aim of this exploratory study was to identify invasive parasites through microscopic and molecular tools. Carnivore feces were collected in Mar Chiquita lagoon, Buenos Aires Province, Argentina. Parasitological and ADN studies were performed. PCR amplifications showed that 8 samples were positive to canids, 2 samples to felids and 1 sample to carnivore. This carnivore DNA was sequenced and identified as Lycalopex gymnocercus. Likewise, 19 parasitic species were identified. Diphyllobothrid (Cestoda) and digenea parasites were found in all feces. These findings showed the importance of aquatic resources for these carnivores in the wetland. Although the pampas fox populations in the Pampean region have been exposed to an ancient invasion of exotic species, in this exploratory study only Eucoleus spp. could have been introduced by dogs and cats in this ecosystem.
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