Metazoan endoparasites of Hoplias malabaricus (Bloch, 1794) (Actinopterygii: Erythrinidae) from upper and middle São Francisco river basin, Minas Gerais State, Brazil

• Published in: Parasitology research (1987) 2023-02, Vol.122 (2), p.645-659
• Main Authors: Duarte, Rayane, dos Santos-Clapp, Michelle Daniele, de Carvalho Brasil-Sato, Marilia
• Format: Article
• Language: English
• Subjects: Animals; Ascaridoidea; Biomedical and Life Sciences; Biomedicine; Brazil; Characiformes - parasitology; Contracaecum; Endoparasites; Fish Diseases - parasitology; Fishing; Geographical distribution; Hoplias malabaricus; Humans; Immunology; Juveniles; Lagoons; Larva; Larvae; Medical Microbiology; Microbiology; New records; Oocysts; Parasites; Proteocephalidae; River basins; Rivers; Trematoda
• ISSN: 0932-0113; 1432-1955
• DOI: 10.1007/s00436-022-07768-1

The endoparasitic fauna of Hoplias malabaricus (which is a species of paramount importance in the fishing and human food sectors) from Três Marias reservoir, São Francisco river, and from eleven marginal lagoons in the upper and middle São Francisco river basin, Brazil, was herein recorded for the first time. In total, 13 endoparasite species belonging to ten different families were found in 147 analyzed H. malabaricus specimens. The identified taxa comprised individuals belonging to phyla Apicomplexa–Calyptosporidae– Caplyptospora sp. (oocysts); Platyhelminthes–Trematoda–Diplostomidae (metacercariae)– Austrodiplostomum sp. and Sphincterodiplostomum musculosum , Clinostomidae (metacercariae)– Clinostomum sp., Gorgoderidae (adults)– Phyllodistomum spatula , and Eucestoda–Proteocephalidae gen. sp. (plerocercoids larvae); and Nematoda–Anisakidae (larvae)– Contracaecum sp. Types 1 and 2 and Hysterothylacium sp., Gnathostomatidae (larvae)– Spiroxys sp., Camallanidae (juveniles/adults)– Procamallanus ( Spirocamallanus ) inopinatus , Guyanemidae (juveniles/adults)– Guyanema baudi , and Cystidicolidae (juveniles/adults)– Cystidicoloides fischeri . Proteocephalidae gen. sp. and Contracaecum sp. Type 1 were the species presenting expressive parasitic indexes in the reservoir, in the river, and in nine of the eleven lagoons. Cystidicoloides fischeri was recorded for the first time in H. malabaricus . Guyanema baudi and S. musculosum had their geographic distribution expanded to São Francisco river basin.