Redescription of Oncophora melanocephala (Rudolphi, 1819) Baudin-Laurencin, 1971 (Nematoda, Camallanidae)

Pinto, Roberto Magalhães; Vicente, Joaquim Júlio; Noronha, Dely; Fabio, Sueli P. de

doi:10.1590/s0074-02761988000200015

Cited by 4 publications

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“…Brazil: Atlantic big-eye, Priacanthus arenatus Cuvier (Pinto et al 1988, Tavares et al 2001; tuna (Thunnus thynnus, T. albacares, T. atlanticus, Auxis thazard) (Moravec et al 1999); Atlantic bonito, Sarda sarda (Bloch) (Alves and Luque 2006).…”

Section: Discussionmentioning

confidence: 99%

Oncophora melanocephala (Nematoda, Camallanidae) from the chub mackerel, Scomber japonicus (Teleostei, Scombridae), caught off Madeira Island (Portugal)

Costa

Freitas

Carvalho

et al. 2009

Acta Parasitologica

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While investigating the nematode parasites of commercial fish caught off the coast of Madeira Island (Atlantic Ocean, Portugal), we collected five specimens of Oncophora melanocephala (Rudolphi, 1819) (Nematoda, Camallanidae) infecting the chub mackerel Scomber japonicus Houttuyn. This is the first record of O. melanocephala from chub mackerel and a new geographic record. Four additional larval specimens with developing buccal capsules were found in the chub mackerel examined.

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Section: Discussionmentioning

confidence: 99%

Oncophora melanocephala (Nematoda, Camallanidae) from the chub mackerel, Scomber japonicus (Teleostei, Scombridae), caught off Madeira Island (Portugal)

Costa

Freitas

Carvalho

et al. 2009

Acta Parasitologica

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“…Pinto et al (1988) reported the presence of Oncophora melanocephala Baudin-Laurencin, 1971;Fábio (2000) recorded the presence of O. melanocephala, Stephanostomum seriolae Yamaguti, 1970, Pseudopecoelus priacanthi (MacCallum, 1921, Brachyphallus parvus (Manter, 1947) and Diplectanotrema balistes Price, 1937. Tavares et al (2001 investigated the ecology of the metazoan parasite community of this fish and registered the presence of Lecithochirium sp., Opecoeloides sp., Diplectanotrema sp., Scolex pleuronectis, Polymorphus sp., O. melanocephala, Raphidascaris sp., Pseudoterranova sp.…”

Section: Introductionmentioning

confidence: 99%

Histopathological changes induced by Hysterothylacium deardorffoverstreetorum larvae (Nematoda: Raphidascarididae) in Priacanthus arenatus Cuvier, 1829 (Actinopterygii)

Kuraiem

Knoff

Felizardo

et al. 2017

Rev. Bras. Parasitol. Vet.

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Priacanthus arenatus is a fish that occurs in the waters of the western Atlantic Ocean and has few records of parasitism. This study aimed to report histological changes caused by the larvae of Hysterothylacium deardorffoverstreetorum. Between July and December, 2013, 30 samples of P. arenatus were obtained from fish markets in the cities of Niterói and Rio de Janeiro, state of Rio de Janeiro, Brazil. Fragments of spleen, liver, stomach wall and mesentery tissues containing nodules and free parasites were extracted to histopathological study. Through histological analysis it was verified that these nodules consisted of connective tissue capsules, in which the parasites were located, with granulomatous inflammation mainly comprised of macrophages and lymphocytes. These nodules also consisted of a central portion of acellular amorphous material, formed by concentric layers, which was slightly basophilic and contained tunnels and, sometimes, parasite debris. The presence of tunnels in acellular amorphous material suggests that the larvae are initially located at the center of the nodules and then they migrate to the surface.Keywords: Hysterothylacium deardorffoverstreetorum, histopathology, Priacanthus arenatus, atlantic bigeye. ResumoPriacanthus arenatus é um peixe que ocorre nas águas do Atlântico ocidental com poucos relatos de parasitimo. Este estudo objetivou relatar as características histológicas causadas pelas larvas de H. deardorffoverstreetorum em P. arenatus. Entre julho e dezembro de 2013, 30 espécimes de P. arenatus foram obtidas de mercados de peixes das cidades de Niterói e Rio de Janeiro, Estado do Rio de Janeiro, Brasil. Fragmentos de baço, fígado, parede do estômago e mesentério contendo nódulos foram extraídos para estudo histopatológico. Foi observado através de análise histológica que esses nódulos eram constituídos por uma cápsula de tecido conjuntivo, onde se localizavam os parasitas viáveis, com infiltrado inflamatório granulomatoso, constituído, predominantemente, por macrófagos e linfócitos e por porção central de material amorfo acelular, formado por lâminas concêntricas, ligeiramente basofílico, contendo túneis e, por vezes, restos parasitários. A presença de túneis no material amorfo acelular dos nódulos analisados histologicamente sugerem que as larvas se localizam inicialmente no centro do granuloma e depois migram para a superfície do mesmo.Palavras-chave: Hysterothylacium deardorffoverstreetorum, histopatologia, Priacanthus arenatus, olho-de-cão.

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Checklist of Nematoda associated with the fishes of Brazil

Luque

Aguiar

Vieira

et al. 2011

Zootaxa

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Redescription of Oncophora melanocephala (Rudolphi, 1819) Baudin-Laurencin, 1971 (Nematoda, Camallanidae)

Cited by 4 publications

References 0 publications

Oncophora melanocephala (Nematoda, Camallanidae) from the chub mackerel, Scomber japonicus (Teleostei, Scombridae), caught off Madeira Island (Portugal)

Oncophora melanocephala (Nematoda, Camallanidae) from the chub mackerel, Scomber japonicus (Teleostei, Scombridae), caught off Madeira Island (Portugal)

Histopathological changes induced by Hysterothylacium deardorffoverstreetorum larvae (Nematoda: Raphidascarididae) in Priacanthus arenatus Cuvier, 1829 (Actinopterygii)

Checklist of Nematoda associated with the fishes of Brazil

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