Studies on helminth parasites of fresh water fishes in Nathsagar reservoir, Paithan, Aurangabad district

Abstract

Freshwater fishes from Nathsagar reservoir, Paithan, Dist. Aurangabad (M.S.) were collected from June 2004 to May 2006. The 1296 fishes were observed from helminthic infections, out of them 761 fishes (58.71%) were infected with helminth parasites. Thirty six species of helminthes were recovered throughout the investigation i.e. 10 species of the trematodes include the genera Genarchopsis, Ozaki, 1925; Orientochreadium, Tubangui, 1931; Oudhia, Dayal et al. Gupta, 1954; Phyllodistomum, Braun, 1899 and Macrotrema, Gupta, 1931. 20 species of the cestodes included six genera i.e. Lytocestus, Cohn, 1908; Senga, Dollfus, 1934; Shinde, 1968; Proteocehalus, Weinlend, 1858; Gangesia, Woodland, 1924 and Silurotaenia, Nybelin, 1942. And six species of the nematodes included two genera. Rhabdochona, Railliet, 1961 and Camalanus, Yeh, 1960. The high prevalence (75.69%) occur in summer season where l ow prevalence (37.5%) in monsoon season. The Mastacembellus armatus is highl y infected (64.58%) with helminth parasi tes.

Keywords

• Helminth parasites
• prevalence
• Nathsagar reservoir
• freshwater fishes