Occurrence of ascaridoid nematodes in Illex coindetii, a commercially relevant cephalopod species from the Ligurian Sea (Northwest Mediterranean Sea)

In this study we investigated the occurrence of larval ascaridoid nematodes in Illex coindetii, a commercially relevant cephalopod, via a cross-sectional prevalence study (January 2015 to February 2018) in two fishing areas (Savona and Piombino) in the Ligurian Sea (northwest Mediterranean Sea). A t...

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Bibliographic Details
Published in:Food control 2020-10, Vol.116, p.107311, Article 107311
Main Authors: Menconi, Vasco, Pastorino, Paolo, Burioli, Erika Astrid Virginie, Righetti, Marzia, Scanzio, Tommaso, Favaro, Livio, Bona, Maria Cristina, Pavoletti, Elena, Dondo, Alessandro, Prearo, Marino
Format: Article
Language:English
Subjects:
Anisakidae
Anisakis pegreffii
Environmental Sciences
Food safety
Food-borne parasite
Hysterothylacium sp
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Summary:In this study we investigated the occurrence of larval ascaridoid nematodes in Illex coindetii, a commercially relevant cephalopod, via a cross-sectional prevalence study (January 2015 to February 2018) in two fishing areas (Savona and Piombino) in the Ligurian Sea (northwest Mediterranean Sea). A total of 745 specimens of I. coindetii were caught by local fisherman through bottom trawling. Parasitological examination revealed ascaridoid nematodes (L3) larvae (n = 9): Hysterothylacium sp. (n = 6) and Anisakis spp. (n = 3). All larvae morphologically referred to the genus Anisakis were identified by PCR-RFLP as A. pegreffii. The prevalence of Hysterothylacium sp. infestation was 0.88% for the Savona and 0.56% for the Piombino sampling site; the prevalence of A. pegreffii was 0.18% for Savona and 1.11% for Piombino and did not differ between the two sampling sites (chi-square test; p = 0.0848). Better knowledge of the distribution of ascaridoid nematodes, especially of Anisakis species is essential for defining their epidemiological role and the potential risk for consumer health. •A prevalence study was carried out on ascaridoid nematodes from Illex coindetii.•Parasitological examination revealed Hysterothylacium sp. and Anisakis pegreffii.•The prevalence of infestation was very low compared to other studies.•None of the ascaridoid nematodes had penetrated the musculature.•The consumption of smaller I. coindetii carries a lower health risk.
ISSN:0956-7135
1873-7129
DOI:10.1016/j.foodcont.2020.107311