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dc.contributor.author
Hernández Orts, Jesús Servando
dc.contributor.author
Aznar, Francisco J.
dc.contributor.author
Blasco Costa, Isabel
dc.contributor.author
Garcia, Nestor Anibal
dc.contributor.author
Víllora Montero, María
dc.contributor.author
Crespo, Enrique Alberto
dc.contributor.author
Raga, Juan A.
dc.contributor.author
Montero. Francisco E.
dc.date.available
2015-08-11T21:09:47Z
dc.date.issued
2013-08-29
dc.identifier.citation
Hernández Orts, Jesús Servando; Aznar, Francisco J.; Blasco Costa, Isabel; Garcia, Nestor Anibal; Víllora Montero, María; et al.; Description, microhabitat selection and infection patterns of sealworm larvae (Pseudoterranova decipiens species complex, nematoda: ascaridoidea) in fishes from Patagonia, Argentina; Biomed Central; Parasites and Vectors; 6; 252; 29-8-2013; 1-15
dc.identifier.issn
1756-3305
dc.identifier.uri
http://hdl.handle.net/11336/1629
dc.description.abstract
Third-stage larvae of the Pseudoterranova decipiens species complex (also known as sealworms) have been reported in at least 40 marine fish species belonging to 21 families and 10 orders along the South American coast. Sealworms are a cause for concern because they can infect humans who consume raw or undercooked fish. However, despite their economic and zoonotic importance, morphological and molecular characterization of species of Pseudoterranova in South America is still scarce. Methods: A total of 542 individual fish from 20 species from the Patagonian coast of Argentina were examined for sealworms. The body cavity, the muscles, internal organs, and the mesenteries were examined to detect nematodes. Sealworm larvae were removed from their capsules and fixed in 70% ethanol. For molecular identification, partial fragments of the mitochondrial cytochrome c oxidase subunit 1 gene (cox1) were amplified for 10 isolates from 4 fish species. Morphological and morphometric data of sealworms were also obtained. Results: A total of 635 larvae were collected from 12 fish species. The most infected fish was Prionotus nudigula, followed by Percophis brasiliensis, Acanthistius patachonicus, Paralichthys isosceles, and Pseudopercis semifasciata. Sequences obtained for the cox1 of sealworms from A. patachonicus, P. isosceles, P. brasiliensis and P. nudigula formed a reciprocally monophyletic lineage with published sequences of adult specimens of Pseudoterranova cattani from the South American sea lion Otaria flavescens, and distinct from the remaining 5 species of Pseudoterranova. A morphological description, including drawings and scanning electron microscopy photomicrographs of these larvae is provided. Sealworms collected from Argentinean fishes did not differ in their diagnostic traits from the previously described larvae of P. cattani. However a discriminant analysis suggests that specimens from P. nudigula were significantly larger than those from other fishes. Most of the sealworms were collected encapsulated from the muscles and, to a lesser degree, from the mesenteries and the liver. Conclusions: We provided the first molecular identification, morphological description and microhabitat characterization of sealworm larvae from the Argentinean Patagonian coast. We also reported the infection levels of sealworms on 20 fish species in order to elucidate the life cycle of these nematodes in this area.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Biomed Central
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Anisakidae
dc.subject
Sealworms
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Pseudoterranova Cattani
dc.subject
Taxonomy
dc.subject.classification
Zoología, Ornitología, Entomología, Etología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
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Biología Marina, Limnología
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Description, microhabitat selection and infection patterns of sealworm larvae (Pseudoterranova decipiens species complex, nematoda: ascaridoidea) in fishes from Patagonia, Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
6
dc.journal.number
252
dc.journal.pagination
1-15
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Hernández Orts, Jesús Servando. Academy of Sciences of the Czech Republic. Biology Centre. Institute of Parasitology; República Checa; Universidad de Valencia. Instituto Cavanilles de Biodiversidad y Biología Evolutiva; España;
dc.description.fil
Fil: Aznar, Francisco J.. Universidad de Valencia. Instituto Cavanilles de Biodiversidad y Biología Evolutiva; España;
dc.description.fil
Fil: Blasco Costa, Isabel. Academy of Sciences of the Czech Republic. Biology Centre. Institute of Parasitology; República Checa; University of Otago. Department of Zoology; Nueva Zelanda;
dc.description.fil
Fil: Garcia, Nestor Anibal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico. Laboratorio de Mamíferos Marinos; Argentina;
dc.description.fil
Fil: Víllora Montero, María. Universidad de Valencia. Instituto Cavanilles de Biodiversidad y Biología Evolutiva; España;
dc.description.fil
Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico. Laboratorio de Mamíferos Marinos; Argentina;
dc.description.fil
Fil: Raga, Juan A.. Universidad de Valencia. Instituto Cavanilles de Biodiversidad y Biología Evolutiva; España;
dc.description.fil
Fil: Montero. Francisco E.. Universidad de Valencia. Instituto Cavanilles de Biodiversidad y Biología Evolutiva; España;
dc.journal.title
Parasites and Vectors
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3847798/
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.parasitesandvectors.com/content/6/1/252


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