Article
Nematodes and acanthocephalans of hygienic-sanitary importance parasitizing Hyporthodus niveatus (Valenciennes, 1828) (Actinopterygii) collected from fish markets of the municipality of Niterói, RJ, Brazil
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MENEZES, Priscila Queiroz Faria de et al. Nematodes and acanthocephalans of hygienic-sanitary importance parasitizing Hyporthodus niveatus (Valenciennes, 1828) (Actinopterygii) collected from fish markets of the municipality of Niterói, RJ, Brazil.
0101-2061
10.1590/fst.1119022
Author
Menezes, Priscila Queiroz Faria de
Fonseca, Michelle Cristie Gonçalves da
Gomes, Delir Corrêa
São Clemente, Sergio Carmona de
Knoff, Marcelo
Abstract
Practical Application: Nematodes and acanthocephalans with potential to cause zoonoses in humans. Hyporthodus niveatus is an appreciated and valuable commercial fish species in the municipality of Niterói, state of Rio de
Janeiro, Brazil, due its excellent quality flesh. The constant presence of helminths in the abdominal musculature, viscera and
serosa of individuals of the species has been the subject of complaints among local fish traders because of economic losses
due to their repugnant aspect. Considering their hygienic-sanitary importance and significance for collective health, the
presence of helminths was investigated in 20 individual fish of H. niveatus purchased from fish markets in the municipality
of Niterói in 2021–2022. Nematodes, identified as third-instar larvae of Contracaecum sp., Terranova sp., Hysterothylacium
deardorffoverstreetorum and Raphidascaris sp., were found parasitizing the intestine and abdominal cavity. Acanthocephalans,
identified as juveniles of Corynosoma australe, were found parasitizing the intestine. The highest parasitic indices were for H.
deardorffoverstreetorum, with prevalence of 30%, mean intensity of 1.5, mean abundance of 0.45 and infection ranges of 1–2.
Considerations about the zoonotic potential and hygienic-sanitary significance of these parasites are presented in order to
increase food safety for consumers.