Microhabitat of Monogenea and Copepodids of Lernaea Cyprinacea on the Gills of Four Brazilian Freshwater Fish Micro Hábitat Branquial De Monogenea Y Copepoditos De Lernaea Cyprinacea En Las Branquias De Cuatro Peces Brasileños De Agua Dulce
نویسنده
چکیده
This study evaluated the ectoparasite distribution on the gill archs of pond-reared pacu (Piaractus mesopotamicus Holmberg, 1887), hybrid patinga (P. mesopotamicus female x P. brachypomus (Cuvier, 1817) male), hybrid tambacu (Colossoma macropomum (Cuvier, 1816) female x P. mesopotamicus male) and hybrid surubim (Pseudoplatystoma reticulatum female x P. corruscans Spix & Agassiz, 1829 male). A total of 300 fish were examined from fish farms in West-Central Brazil for parasitological assessment of the gill arches I, II, III and IV, from the outer to inner arch, respectively. Only the monogenean Mymarothecium boegeri Cohen & Kohn, 2005 and Anacanthorus penilabiatus Boeger, Husak & Martins, 1995 from the hybrid patinga showed the greatest (p<0.05) mean intensities on the gill arch I when compared to gill arch IV. Microhabitat preference was not observed in the other fish examined. Copepodids of Lernaea cyprinacea Linnaeus 1758 showed no microhabitat preference. This study highlighted the fact that under culture conditions, homogeneous distribution of parasites on the gills may occur.
منابع مشابه
First Record of Lernaea Cyprinacea (copepoda) in a Native Fish Species from a Brazilian River Primer Registro De Lernaea Cyprinacea (copepoda) En Una Especie Nativa De Pez De Un Río Brasileño
This is the report of the occurrence of Lernaea cyprinacea (Linnaeus, 1758) parasitizing the native fish species Steindachnerina insculpta (Fernández-Yépez, 1948). Sixty host specimens were captured in Taquari River, municipality of Taquarituba, São Paulo State, Brazil. Three hosts were infested with L. cyprinacea. The infestation rate was low, with one parasite per host. Proper management shou...
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