SYSTEMATIC REVIEW article
Front. Mar. Sci.
Sec. Marine Fisheries, Aquaculture and Living Resources
Volume 12 - 2025 | doi: 10.3389/fmars.2025.1630166
Systematic Review of Myxozoan Occurrence in Brazilian Fish
Provisionally accepted
Rafaela Franco de Araujo1,2*
Marcos Sidney Brito Oliveira1Abthyllane Amaral de Carvalho1João Gabriel Rosário da Luz1Marcela Nunes Videira1*Aldi Feiden2- 1Universidade Estadual do Amapá, Macapá, Brazil
- 2Universidade Estadual do Oeste do Paraná, Toledo, Brazil
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A systematic review was carried out to document the occurrence of myxozoan parasites in farmed and wild teleost fish in Brazil, considering publications made between 1969 and April 2024. This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, and searches were conducted in the Web of Science, Scopus and Pubmed databases. After applying the criteria, 226 articles were selected, recording 286 taxa of myxozoan parasites, of which the genera Henneguya and Myxobolus are the most described in fish in Brazil. Overall, these studies covered ≈ 3% of the more than 4,900 fish species known in Brazilian waters. All reviewed myxozoan genera showed high specificity for infection sites, except Myxobolus, which was a generalist. In the host-parasite interaction network, fish species of importance to Brazilian fishing activity (Pimelodidae, Serrasalmidae, Cichlidae, Bryconidae and Prochilodontidae) obtained the highest number of associations, being the most researched. Regarding the geographic distribution of studies with myxozoans, the majority (79%) occurred with wild fish, originating from all Brazilian river basins, with the exception of the Uruguay River basin. On the other hand, studies that recorded myxozoans in rearing hosts (21% of studies) occurred mainly in the Paraná River basin.
Keywords: Aquaculture, Myxozoa, Parasites, pathogenicity, river basins
Received: 06 Jun 2025; Accepted: 22 Jul 2025.
Copyright: © 2025 Araujo, Oliveira, Carvalho, Luz, Videira and Feiden. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Rafaela Franco de Araujo, Universidade Estadual do Amapá, Macapá, Brazil
Marcela Nunes Videira, Universidade Estadual do Amapá, Macapá, Brazil
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