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

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.Keywords: Hysterothylacium deardorffoverstreetorum, Anisakis sp., Terranova sp., Contracaecum sp., Cynoscion guatucupa. ResumoEntre janeiro e agosto de 2012, 30 espécimes de Cynoscion guatucupa (Cuvier, 1830) pescados no litoral do município de Itajaí, estado de Santa Catarina, Brasil (26° 54' 28" S and 48° 39' 43" W) e comercializados no estado do Rio de Janeiro, foram investigados quanto à presença de nematóides zoonóticos. Foram encontradas 853 larvas de quatro espécies de nematóides parasitos. Três espécies pertencem à Anisakidae, sendo três larvas de Anisakis sp., com prevalência (P) de 10%, intensidade média (IM) de 1, abundância média (AM) de 0,1 e sítio de infecção (SI) o mesentério; cinco de Terranova sp., com P = 13,3%, IM = 1,25, AM = 0,17, amplitude de variação da intensidade de infecção (AI) de 1 a 2 e SI = mesentério; e sete de Contracaecum sp., com P = 6,6%, IM = 3,5, AM = 0,23, AI = 1 a 4 e SI = mesentério e cavidade abdominal. Uma espécie pertence à Raphidascarididae, sendo 838 larvas de Hysterothylacium deardorffoverstreetorum com P = 83,3%, IM = 33,52, AM = 27,93, AI = 1 a 219 e SI = mesentério, serosa do fígado e cavidade abdominal. Este é o primeiro registro de larvas de Anisakis sp. e Contracaecum sp. em C. guatucupa no Brasil.

Anisakid larva parasitizing Plagioscion squamosissimus in Marajó Bay and Tapajós River, state of Pará, Brazil

“…However, morphometrically, they showed smaller body size than the ones collected by Felizardo et al (2009) and Fontenelle et al (2013) (22.33 length x 0.44 width). These differences in the lengths and widths of nematode larvae between the observations of Felizardo et al (2009), Fontenelle et al (2013 and the present study are possibly related to different hosts or the influences of different ecoregions, given that the specimens examined were purchased in different biogeographic areas, i.e. temperate South America (state of Rio de Janeiro) and tropical Atlantic (state of Pará) (SPALDING et al, 2007).…”

“…collected in the present study were morphologically similar to specimens of A. simplex (Rudolphi, 1809) and Anisakis sp. that were recorded in Paralichthys isosceles Jordan, 1890, andCynoscion guatucupa (Cuvier, 1830), collected on the coast of the state of Rio de Janeiro by Felizardo et al (2009) and Fontenelle et al (2013), respectively. However, morphometrically, they showed smaller body size than the ones collected by Felizardo et al (2009) and Fontenelle et al (2013) (22.33 length x 0.44 width).…”

“…Species belonging to the genus Anisakis (Dujardin, 1845) have mostly been found in many species of Brazilian marine fish FONTENELLE et al, 2013). There is also one record in a fish species that inhabits freshwater and brackish water, P. squamosissimus, in the municipality of Colares, state of Pará (RODRIGUES et al, 2015).…”

Anisakidae and Raphidascarididae larvae parasitizing Selene setapinnis (Mitchill, 1815) in the State of Rio de Janeiro, Brazil

“…The genus Hysterothylacium has been mentioned as important for health surveillance studies (CAVALCANTI et al, 2012;FELIZARDO et al, 2009aFELIZARDO et al, , 2009bFONTENELLE et al, 2013;YAGI et al, 1996). Continuation of studies on this parasitism is of sanitary importance from a public health point of view, in order to implement and reinforce hygiene standards and fish quality control.…”

<b>Detection of Anisakidae larvae parasitizing <i>Plagioscion squamosissimus</i> and <i>Pellona castelnaeana</i> in the State of Pará, Brazil

“…In adulthood, the site of infection is, for most species, the gastrointestinal tract (Takemoto et al, 2004). Included in the Phylum Nematoda, the family Anisakidae contains 24 genera and its representatives have great zoonotic potential (Martins, Onaka, & Fenerick, 2005;Fontenelle, Knoff, Felizardo, Lopes, & São Clemente, 2013). In the larval stage, nematodes of this family are common parasites of fishes, cephalopods and prawns while the adults are parasites of fish, reptiles, birds and mammals (Moravec, 1998;Klimpel & Palm, 2011).…”