MONOGENOIDEA AND DIGENEA PARASITES OF THUNNUS ATLANTICUS (PERCIFORMES, SCOMBRIDAE) FROM RIO DE JANEIRO COAST, BRAZIL

Authors

  • Marcia Cristina Nascimento Justo Laboratório de Helmintos Parasitos de Peixes, Instituto Oswaldo Cruz, Fiocruz Av. Brasil, 4365 Manguinhos, Rio de Janeiro, Brazil. https://orcid.org/0000-0001-6267-8202
  • Anna Kohn Laboratório de Helmintos Parasitos de Peixes, Instituto Oswaldo Cruz, Fiocruz Av. Brasil, 4365 Manguinhos, Rio de Janeiro, Brazil.Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq https://orcid.org/0000-0002-6000-7357

DOI:

https://doi.org/10.24039/rnh201482926

Keywords:

Digenea, Fish parasites, Monogenoidea, Scombridae.

Abstract

Thunnus atlanticus is of great commercial importance in Brazil, but infections caused by helminth parasites can reduce its commercial value. In this paper, 15 species of Digenea and three of Monogenoidea were recovered from 61 specimens of T. atlanticus collected from the coastal zone of the State of Rio de Janeiro. Species of the family Didymozoidae were the dominant species, with highest prevalence and abundance values. The parasites showed the typical aggregated distribution pattern, except for Nasicola brasiliensis, which had an aleatory distribution pattern. Prevalence and abundance of Didymosulcus philobranchiarca, Didymocystis lamotheargumedoi and Didymosulcus wedli and prevalence of Koellikerioides internogastricus were positively correlated with the total length of the host. The abundance of Coeliotrema thynni was negatively correlated with total length of the host. New hosts records resulted for four Digenea: Didymosulcus orbitalis, Didymosulcus wedli, Rhipidocotyle pentagonum and Lecithochirium microstomum, and one Monogenoidea: Nasicola brasiliensis.

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Published

2014-02-11

How to Cite

Nascimento Justo, M. C., & Kohn, A. (2014). MONOGENOIDEA AND DIGENEA PARASITES OF THUNNUS ATLANTICUS (PERCIFORMES, SCOMBRIDAE) FROM RIO DE JANEIRO COAST, BRAZIL. Neotropical Helminthology, 8(2), 339–348. https://doi.org/10.24039/rnh201482926

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Artículos Originales