Nematodes of zoonotic importance in Cynoscion guatucupa (Pisces) in the state of Rio de Janeiro

Gabrielle Fontenelle,Leila Maria Silva Lopes,Nilza Nunes Felizardo,Marcelo Knoff,Sérgio Carmona De São Clemente

doi:10.1590/s1984-29612013005000019

Gabrielle Fontenelle, Leila Maria Silva Lopes + Show 3 more

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https://doi.org/10.1590/s1984-29612013005000019

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Abstract

Between January and August 2012, thirty specimens of Cynoscion guatucupa (Cuvier, 1830) caught off coast of the municipality of Itajaí, state of Santa Catarina, Brazil (26° 54' 28″ S and 48° 39' 43″ W) and commercialized in the state of Rio de Janeiro were investigated for the presence of zoonotic nematodes. In total 853 larvae of four nematode parasite species were found. There were three species of Anisakidae: three larvae of Anisakis sp., with prevalence (P) of 10%, mean intensity (MI) of 1.0, mean abundance (MA) of 0.1 and infection site (IS) in the mesentery; five of Terranova sp. with P = 13.3%, MI = 1.25, MA = 0.17, range of infection (RI) from 1 to 2 and IS = mesentery; and seven of Contracaecum sp. with P = 6.6%, MI = 3.5, MA = 0.23, RI = 1 to 4 and IS = mesentery and abdominal cavity. There was one species of Raphidascarididae: 838 larvae of Hysterothylacium deardorffoverstreetorum with P = 83.3%, MI = 33.52, MA = 27.93, RI = 1 to 219 and IS = mesentery, liver serosa and abdominal cavity. This is the first report of larvae of Anisakis sp. and Contracaecum sp in C. guatucupa in Brazil. Hysterothylacium deardorffoverstreetorum; Anisakis sp.; Terranova sp.; Contracaecum sp.; Cynoscion guatucupa.

Highlights

IntroductionCynoscion guatucupa (Cuvier, 1830), the striped weakfish, belongs to the family Sciaenidae, has a distribution range from the southwestern Atlantic coast of Rio de Janeiro, Brazil, to the
Cynoscion guatucupa (Cuvier, 1830), the striped weakfish, belongs to the family Sciaenidae, has a distribution range from the southwestern Atlantic coast of Rio de Janeiro, Brazil, to theGulf of San Matias, Argentina, and has great commercial value
The present study aimed to investigate nematode larvae of zoonotic importance infecting C. guatucupa commercialized in the municipality of Rio de Janeiro, state of Rio de Janeiro, Brazil, and to establish the helminth species and their parasitological indexes relating to prevalence, mean intensity, mean abundance, range of infection and infection sites, along with their sanitary importance

Summary

Introduction

Cynoscion guatucupa (Cuvier, 1830), the striped weakfish, belongs to the family Sciaenidae, has a distribution range from the southwestern Atlantic coast of Rio de Janeiro, Brazil, to the. Gulf of San Matias, Argentina, and has great commercial value. It is a demersal species, found at depths of up to 200 meters and it occurs in brackish waters of estuaries. Juveniles feed mainly on crustaceans and adults feed basically on fish (MENEZES; FIGUEIREDO, 1980; BERNARDES et al, 2005; FISCHER et al, 2011). In Brazil, there are several records of parasitism in marine fish by Anisakidae and Raphidascarididae, and some of these nematodes www.cbpv.com.br/rbpv

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