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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
dc.subject PSEUDOTERRANOVA CATTANI
dc.subject TAXONOMY
dc.subject.classification Zoología, Ornitología, Entomología, Etología
dc.subject.classification Ciencias Biológicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.subject.classification Biología Marina, Limnología
dc.subject.classification 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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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)