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ISSUE 3

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Análisis de la variación espacio-temporal en capturabilidad del mero, Epinephelus morio(Valenciennes, 1828) en el Banco de Campeche antes de su sobrepesca (1973-1977)

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Aplicación de calceína para la estimación del crecimiento de la almeja amarilla Mesodesma mactroides Reeve, 1854

RESEARCH NOTE

Aislamiento de Plesiomonas shigelloides y Aeromonas veronii biotipo sobria en heces de lobo marino común sudamericano, Otaria flavescens(Shaw, 1800)

Authors

CORRESPONDING

Heriberto Fernández

hfernand@uach.cl

1

1

Instituto de Microbiología Clínica, Universidad Austral de Chile, Casilla 567, Valdivia, Chile

Mario J. González

1

1

Instituto de Microbiología Clínica, Universidad Austral de Chile, Casilla 567, Valdivia, Chile

María P. Villanueva

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1

Instituto de Microbiología Clínica, Universidad Austral de Chile, Casilla 567, Valdivia, Chile

Fadua Latif

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1

Instituto de Microbiología Clínica, Universidad Austral de Chile, Casilla 567, Valdivia, Chile

Fabiola Fernández

1

1

Instituto de Microbiología Clínica, Universidad Austral de Chile, Casilla 567, Valdivia, Chile

Abstract

Plesiomonas shigelloides and Aeromonas spp. are Gram negative bacteria vastly distributed in the environment, being isolated from aquatic ecosystems and terrestrial and marine animals. The South American sea lion (Otaria flavescens) is the most frequent marine mammal of the Chilean coasts, living in beaches, rocks or coastline of rivers. In this work we determined the isolation frequency of P. shigelloides and A. veronii biotype sobria in fecal samples of South American sea lions belonging to a colony established at the urban South coastline of Valdivia River, southern Chile. From the 30 samples under study, P. shigelloides was isolated in 27 (90.0%) and A. veronii biotype sobria in 17 (56.6%). To our knowledge, this is the first report of the isolation of P. shigelloides and Aeromonas spp. from South American sea lions in Chile. However, further studies are needed to clarify if these bacteria play any role in producing disease, or are merely commensals, in these marine mammals.

Key words

 AeromonadaceaeEnterobacteriaceae, intestinal microbiota, marine mammals, reservoir

 

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