Occurrence of ascaridoid nematodes in Illex coindetii, a commercially relevant cephalopod species from the Ligurian Sea (Northwest Mediterranean Sea). (October 2020)

• Record Type: Journal Article
• Authors: Menconi, Vasco; Pastorino, Paolo; Burioli, Erika Astrid Virginie; Righetti, Marzia; Scanzio, Tommaso; Favaro, Livio; Bona, Maria Cristina; Pavoletti, Elena; Dondo, Alessandro; Prearo, Marino
• Is Part Of: Food control. Volume 116(2020)
• Publication Date: 2020-10
• Subjects: Anisakis pegreffii -- Anisakidae -- Food safety -- Hysterothylacium sp. -- Food-borne parasite; Food -- Quality -- Periodicals; Food -- Analysis -- Periodicals; Food handling -- Periodicals; Food industry and trade -- Quality control -- Periodicals; Aliments -- Industrie et commerce -- Qualité -- Contrôle -- Périodiques; Aliments -- Qualité -- Périodiques; Aliments -- Analyse -- Périodiques; Hygiène alimentaire -- Périodiques; Food -- Analysis; Food handling; Food -- Quality; Periodicals; Electronic journals; 664.07
• DOI: 10.1016/j.foodcont.2020.107311
• Languages: English
• ISSNs: 0956-7135

Abstract

Abstract: 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. Highlights: 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.