Paravortex panopea n. sp. (Platyhelminthes: Rhabdocoela) on clams from the northern Patagonian coast, Argentina: Pathogeny and specificity

During a histopathological survey of the geoduck, Panopeaabbreviata (Hiatellidae), and the razor clam, Ensis macha (Pharidae), in northern Patagonian gulfs (Argentina), turbellarian worms were found in the intestine lumen. In this work, we described a new species of Paravortex (Platyhelminthes, Graf...

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Detalles Bibliográficos
Autores principales: Brusa, Francisco, Vázquez, N., Cremonte, Florencia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Ciencias Naturales
bivalvia
Graffillidae
mollusca
parasite
specificity
Turbellaria
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83922
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83922
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
bivalvia
Graffillidae
mollusca
parasite
specificity
Turbellaria
spellingShingle Ciencias Naturales
bivalvia
Graffillidae
mollusca
parasite
specificity
Turbellaria
Brusa, Francisco
Vázquez, N.
Cremonte, Florencia
Paravortex panopea n. sp. (Platyhelminthes: Rhabdocoela) on clams from the northern Patagonian coast, Argentina: Pathogeny and specificity
topic_facet Ciencias Naturales
bivalvia
Graffillidae
mollusca
parasite
specificity
Turbellaria
description During a histopathological survey of the geoduck, Panopeaabbreviata (Hiatellidae), and the razor clam, Ensis macha (Pharidae), in northern Patagonian gulfs (Argentina), turbellarian worms were found in the intestine lumen. In this work, we described a new species of Paravortex (Platyhelminthes, Graffillidae). We collected the hosts by scuba diving and dissected alive for studying the turbellarians. In this new species, the pharynx continues in a short esophagus and the latter in a saccular intestine. Gravid specimens have from 2 to 8 twin embryos in the parenchyma. A short penis papilla arises from the seminal vesicle and the gonopore presents a strong sphincter. This species resembled P. nicolli Szidat, 1965, which was described paraziting Mytilus edulis platensis in Buenos Aires, Argentina. The new species can be differentiated from P. nicolli mainly by the presence of a penis papilla and a sphincter between genital atrium and gonopore. This turbellarian species was significantly more prevalent in geoducks (28 %, n = 210) than in razor clams (6 %, n = 480) (KW, p < 0.0001). For both host species, no evidence of direct physical damage caused by turbellarians was observed.
format Articulo
Articulo
author Brusa, Francisco
Vázquez, N.
Cremonte, Florencia
author_facet Brusa, Francisco
Vázquez, N.
Cremonte, Florencia
author_sort Brusa, Francisco
title Paravortex panopea n. sp. (Platyhelminthes: Rhabdocoela) on clams from the northern Patagonian coast, Argentina: Pathogeny and specificity
title_short Paravortex panopea n. sp. (Platyhelminthes: Rhabdocoela) on clams from the northern Patagonian coast, Argentina: Pathogeny and specificity
title_full Paravortex panopea n. sp. (Platyhelminthes: Rhabdocoela) on clams from the northern Patagonian coast, Argentina: Pathogeny and specificity
title_fullStr Paravortex panopea n. sp. (Platyhelminthes: Rhabdocoela) on clams from the northern Patagonian coast, Argentina: Pathogeny and specificity
title_full_unstemmed Paravortex panopea n. sp. (Platyhelminthes: Rhabdocoela) on clams from the northern Patagonian coast, Argentina: Pathogeny and specificity
title_sort paravortex panopea n. sp. (platyhelminthes: rhabdocoela) on clams from the northern patagonian coast, argentina: pathogeny and specificity
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/83922
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