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Metazoan parasites infecting the souther mouth-brooder, Pseudocrenilabrus philander (Weber, 1897) from Nwanedi and Bubi Rivers

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Rok publikování 2015
Druh Konferenční abstrakty
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Popis The importance of Pseudocrenilabrus philander as an ornamental fish, has received attention due to its opalescence blue and pale yellow colour. This fish species is already utilised by subsistence fishermen in the Limpopo Province as additional source of protein. Parasites cause huge economic losses in the aqricultural industry with aquaculture being no exeption. Determining the biodiversity of the parasite fauna on this fish enable better understanding of the interactins between parasite species and its host, ensuring better decisions about their managenemt and where necessary, theri control. Understanding the naturally occuring parasites of this fish species is therefore important. Eighty-six specimens of P. philander (Mean total length = 5.46) were collected during summer period in November 2013 and February 2014 and during winter in July and August 2014 from Nwanedi River (South Africa) and and Bubi River (Zimbabwe). Fish were sacrified by severing the spinal cord. Recovered monogenean, dugenena and cestode parasites were fixed and mounted in glycerine ammonium picrate (GAP) solutin and nematodes were cleared in lactophenol for examiantion. Parasites identification studying important sturctures were done using an Olympus BX50 compound microscope. Morphometric evaluations revealed the presence of six pecies of monogeans, Enterogyrus coronatus, Cichlidogyrus tilapiae, Cichlidogyrus philander and Cichlidogyrus spp and Gyrodactylus sp.; three species of digenean metacercariae, Petasiger sp., Clinostomum sp. and Neodiplostomum sp.; eight species of cestode larvea of Neogryporhynchus spp., Paradilepis scolesica, Paradilepis sp., Parvitaenia macropeos, Parvitania spp. and Valipora minuta; and L3 stage larvae of five nematode species, Procamallanus sp., Camallanus spp. and Contracaecum sp. Many of these parasites are first geogrphical and host records for both localities.
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