Abstract
Introduction
Parasites of the genus Gyrodactylus von Nordmann, 1832, are predominantly parasites of freshwater and marine bony fishes. To date, 40 species of the genus have been described from Africa, with only 6 of these reported from South Africa. This represents only a small fraction of the known diversity of almost 500 species known worldwide.
Methods
In total, 43 of Straighhfin barb, Enteromius paludinosus were collected from Barberspan Bird Sanctuary, North West Province, South Africa. Monogenean parasites were isolated from the fins and fixed on microscope slides in ammonium picrate glycerine. Morphometric evaluation of opisthaptoral hard parts confirmed the identity of these specimens as a new species.
Results
The description of Gyrodactylus paludinosus sp. nov. is presented. The new species has well-developed, slightly curved superficial inner roots and well-developed rectangular-like ventral bar membrane. Despite the small differences between the hamuli size, it can be distinguished from its congeners, G. kyogae and G. ivindoensis, the only species known from small African barbs, by the shape of ventral bars and marginal hook sickle propers.
Conclusion
The description of Gyrodactylus paludinosus n. sp. increases the total number of Gyrodactylus spp. known from African cyprinid fish to three. Undoubtedly, more attention should be given to studies on small barbs as potential hosts for new species.
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Funding
MT was partially funded through the North-West University Water Research Group (NWU-WRG). WM was funded by the Water Research Commission (WRC) of South Africa (Project number K5/2352, Wynand Malherbe PI).
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Ethics approval was obtained from the North-West University Ethics Committee (Ethics number: NWU-00095-12-A4) and host collection was done under permits HQ 05/15-007 NW and NW 8065/03/2019, issued by the Department of Rural, Environmental and Agricultural Development, North West Province, South Africa.
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Truter, M., Smit, N.J., Malherbe, W. et al. Description of Gyrodactylus paludinosus sp. nov. (Monogenea: Gyrodactylidae) from the Straightfin Barb, Enteromius paludinosus (Peters, 1852), in South Africa. Acta Parasit. 67, 446–453 (2022). https://doi.org/10.1007/s11686-021-00480-7
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DOI: https://doi.org/10.1007/s11686-021-00480-7