Infection dynamics of Posthodiplostomum sp. (Digenea: Diplostomidae) in first and second intermediate hosts from an Andean Patagonian lake (Argentina)

In Argentinean Patagonia, a species of the genus Posthodiplostomum has been reported infecting populations of the snail Anisancylus obliquus and the galaxiid fish Galaxias maculatus (small puyen), meanwhile adults would develop in piscivorous birds. The aim of the present work was to describe the se...

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Detalles Bibliográficos
Autores principales:	Ritossa, Luciano, Flores, Verónica, Viozzi, Gustavo
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2014
Materias:	Biología Digenea Galaxias maculatus Anisancylus obliquus Infection dynamics Argentinean Patagonia Dinámica de infección Patagonia argentina
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/150888
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-150888
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Biología Digenea Galaxias maculatus Anisancylus obliquus Infection dynamics Argentinean Patagonia Dinámica de infección Patagonia argentina
spellingShingle	Biología Digenea Galaxias maculatus Anisancylus obliquus Infection dynamics Argentinean Patagonia Dinámica de infección Patagonia argentina Ritossa, Luciano Flores, Verónica Viozzi, Gustavo Infection dynamics of Posthodiplostomum sp. (Digenea: Diplostomidae) in first and second intermediate hosts from an Andean Patagonian lake (Argentina)
topic_facet	Biología Digenea Galaxias maculatus Anisancylus obliquus Infection dynamics Argentinean Patagonia Dinámica de infección Patagonia argentina
description	In Argentinean Patagonia, a species of the genus Posthodiplostomum has been reported infecting populations of the snail Anisancylus obliquus and the galaxiid fish Galaxias maculatus (small puyen), meanwhile adults would develop in piscivorous birds. The aim of the present work was to describe the seasonal dynamics of this parasite in the intermediate hosts inhabiting a small, shallow Patagonian Andean lake. Samples of snails and fish from Patagua Lake (40° 46' S - 71° 36' W) were collected monthly from October 2010 to March 2011. The larval infection of Posthodiplostomum sp. increases in spring. Snails were infected from November to January, with the highest prevalence in December (8.2%), decreasing in January (3.1%). In fish, prevalence ranged between 70% (November) and 100% (December to March). The highest infection values were recorded in larger fish, while the small fish with sizes less than 40 mm exhibited low infection levels. So, we can infer that the life cycle of Posthodiplostomum sp. in Patagonia shows a seasonal pattern, with larval development during spring, when cercariae emerge from larger snails, resulting in a higher prevalence of fish in the littoral.
format	Articulo Articulo
author	Ritossa, Luciano Flores, Verónica Viozzi, Gustavo
author_facet	Ritossa, Luciano Flores, Verónica Viozzi, Gustavo
author_sort	Ritossa, Luciano
title	Infection dynamics of Posthodiplostomum sp. (Digenea: Diplostomidae) in first and second intermediate hosts from an Andean Patagonian lake (Argentina)
title_short	Infection dynamics of Posthodiplostomum sp. (Digenea: Diplostomidae) in first and second intermediate hosts from an Andean Patagonian lake (Argentina)
title_full	Infection dynamics of Posthodiplostomum sp. (Digenea: Diplostomidae) in first and second intermediate hosts from an Andean Patagonian lake (Argentina)
title_fullStr	Infection dynamics of Posthodiplostomum sp. (Digenea: Diplostomidae) in first and second intermediate hosts from an Andean Patagonian lake (Argentina)
title_full_unstemmed	Infection dynamics of Posthodiplostomum sp. (Digenea: Diplostomidae) in first and second intermediate hosts from an Andean Patagonian lake (Argentina)
title_sort	infection dynamics of posthodiplostomum sp. (digenea: diplostomidae) in first and second intermediate hosts from an andean patagonian lake (argentina)
publishDate	2014
url	http://sedici.unlp.edu.ar/handle/10915/150888
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Infection dynamics of Posthodiplostomum sp. (Digenea: Diplostomidae) in first and second intermediate hosts from an Andean Patagonian lake (Argentina)

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