Abstract
Infection of fish gills by Henneguya causes greater contact between the secondary gill lamellae, thereby giving rise to decreased absorption surface area at the end of the filaments. This ectoparasite can cause damages on the gills infected fish. In the present study, fresh gills of Metynnis lippincottianus were analyzed using optical microscopy techniques. The myxoporean Henneguya sp. was found to be infecting 80% of the gills of this host fish. Presence of this parasite caused hyperplasia and fusion of the gill lamellae, but without inflammation in the parasitized organ.
Highlights
A infecção de Henneguya nas brânquias de peixes causam o maior contato entres as lamelas branquiais secundárias
Metynnis lippincottianus Cope, 1870, a fish that is popularly known as pratinha, is widely distributed in the rivers of the Brazilian and French Guiana basins system
The genus Henneguya Thélohan (1892) comprises more than 200 species, among which 55 have been described as occurring in Brazil, and 16 have been reported in the Amazon basin (Zatti et al, 2018). This genus has two prolonged valves and each of these contains a polar capsule with a spiral filament and a sporogenic cell, usually binucleated, which forms the spores of this genus (Matos et al, 2001)
Summary
A infecção de Henneguya nas brânquias de peixes causam o maior contato entres as lamelas branquiais secundárias. The genus Henneguya Thélohan (1892) comprises more than 200 species, among which 55 have been described as occurring in Brazil, and 16 have been reported in the Amazon basin (Zatti et al, 2018).
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Schedule a callMore From: Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria
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