2012•Revista Mexicana de BiodiversidadOpen access

Notes on helminth parasites of tuna fishes (Scombridae) in Brazil

Márcia Cristina Nascimento Justo, Anna Kohn

Abstract

Four species of Scombridae from the coast of Rio de Janeiro, southwest Atlantic Ocean were found tobe parasitized with species of Didymozoidae (Digenea): Thunnus atlanticus (Lesson) a new host record forNephrodidymotrema ahi Yamaguti, 1970, Didymocystis neothunni (Yamaguti, 1970), and Didymozoon longicolle(Yamaguti, 1970); Thunnus obesus (Lowe) parasitized by Didymozoon longicolle and reported as a new host forNephrodidymotrema ahi; Thunnus albacares (Bonaterre) parasitized by Nephrodidymotrema ahi, and Katsuwonuspelamis (Linnaeus) by Didymozoon longicolle. Measurements, figures, and parameters of infection are presented.

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Key concepts: Scombridae, Thunnus, Digenea, Biology, Tuna, Helminths, Fishery, Zoology