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Occurrence of larval ascaridoid nematodes in the Argentinean short-finned squid Illex argentinus from the Southwest Atlantic Ocean (off Falkland Islands).
Cipriani, Paolo; Giulietti, Lucilla; Palomba, Marialetizia; Mattiucci, Simonetta; Bao, Miguel; Levsen, Arne.
Afiliação
  • Cipriani P; Institute of Marine Research (IMR), Nordnes, Bergen, Norway. Electronic address: paolo.cipriani@hi.no.
  • Giulietti L; Institute of Marine Research (IMR), Nordnes, Bergen, Norway.
  • Palomba M; Department of Public Health and Infectious Diseases, Section of Parasitology, Sapienza - University of Rome, Italy; Department of Ecological and Biological Sciences, Tuscia University, Viterbo, Italy.
  • Mattiucci S; Department of Public Health and Infectious Diseases, Section of Parasitology, Sapienza - University of Rome, Italy.
  • Bao M; Institute of Marine Research (IMR), Nordnes, Bergen, Norway.
  • Levsen A; Institute of Marine Research (IMR), Nordnes, Bergen, Norway.
Int J Food Microbiol ; 297: 27-31, 2019 May 16.
Article em En | MEDLINE | ID: mdl-30870722
The Argentinean short-finned squid (Illex argentinus) is an oceanic, neritic species widely distributed off the east coast of South America, representing the most abundant commercially exploited squid species in these waters. Despite the great commercial importance of Argentinean short-finned squid as a food resource, and as frozen product exported to Europe, the presence of zoonotic anisakid nematodes, especially in the mantle of the squid, is poorly known. The occurrence and site of infection of larval ascaridoid nematodes in 70 I. argentinus caught off the Falkland Islands were investigated. Squids were examined using the UV-Press method. In total, 30 nematodes were detected in the viscera and mantle. According to morphology, 27 were third-stage larvae (L3) belonging to genus Anisakis, while three were L3 assigned to Hysterothylacium. Anisakis pegreffii (n = 27) were identified by sequence analysis of the mtDNA cox2 and the partial EF1 α-1 region of nDNA genes; Hysterothylacium aduncum (N = 3) were identified by sequence analysis of the ITS rDNA region. These findings represent the first molecular identification of A. pegreffii and H. aduncum in I. argentinus. Both prevalence (P = 15.7%) and abundance (A = 0.39) of infection with A. pegreffii were low, and even lower values of infection were recorded for H. aduncum (P = 2.1%, A = 0.04). Only 3 out of 70 (4.3%) squids hosted A. pegreffii larvae in the mantle. Larvae infecting viscera were coiled and mainly attached to outer surface of visceral organs. Mantle-infecting larvae were situated in the posterior half. Thus, these results suggest that - although low - the risk of acquiring anisakiasis from consumption of raw, marinated and/or undercooked short-finned squid products still exists.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Decapodiformes / Ascaridoidea / Parasitologia de Alimentos / Anisaquíase / Alimentos Marinhos / Doenças dos Peixes Tipo de estudo: Prognostic_studies / Risk_factors_studies Limite: Animals País/Região como assunto: America do sul / Argentina Idioma: En Revista: Int J Food Microbiol Assunto da revista: CIENCIAS DA NUTRICAO / MICROBIOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de publicação: Holanda
Texto completo
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XML
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Decapodiformes / Ascaridoidea / Parasitologia de Alimentos / Anisaquíase / Alimentos Marinhos / Doenças dos Peixes Tipo de estudo: Prognostic_studies / Risk_factors_studies Limite: Animals País/Região como assunto: America do sul / Argentina Idioma: En Revista: Int J Food Microbiol Assunto da revista: CIENCIAS DA NUTRICAO / MICROBIOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de publicação: Holanda