Peer-reviewed veterinary case report
Neobenedenia melleni parasite in imported ornamental reef fish
By Cardoso, Pedro Henrique Magalhães et al.·Published in Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria·2019·Departamento de Medicina Veteriná·View original on PubMed →
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Original publication title: Neobenedenia melleni (Monogenea: Capsalidae) in ornamental reef fish imported to Brazil.
- Species:
- fish
Plain-English summary
A group of ornamental reef fish, including Arabian angelfish and regal angelfish, showed signs of irritability and cloudy eyes after being imported to Brazil and kept in quarantine. A quick examination revealed they were infected with a harmful parasite called Neobenedenia melleni. The fish were treated with a medication called praziquantel, given twice over a period of eight days. After treatment, follow-up checks showed that the parasites were gone, and the fish were cleared for sale.
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Abstract
The capsalid monogenean Neobenedenia melleni is known as a lethal pathogen for captured marine teleost ornamental fish, if left untreated. This study reports the occurrence of N. melleni parasitizing four species of ornamental reef fish imported into Brazil and maintained in quarantine: Arabian angelfish (Pomacanthus asfur ), yellowbar angelfish (Pomacanthus maculosus), regal angelfish (Pygoplites diacanthus), and bluecheek butterflyfish (Chaetodon semilarvatus). Ten days after the beginning of quarantine, some fish showed behavioral alterations, such as irritability, and corneal opacity, which were rapidly diagnosed to be caused by monogenean parasites by body surface scraping. The fish from the same batch were treated with two applications of 2 mg L-1 praziquantel each at an interval of four days. Seven days after the first treatment, the mucus surface of the fish was re-examined, which did not reveal the parasites presence being delivered for commercialization.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/30540114/