ABB  Vol.6 No.7 , July 2015
Prevalence and Intensity of Helminth Parasites of African Catfish Clarias gariepinus in Lake Manzala, Egypt
ABSTRACT
The African catfish, Clarias gariepinus, is generally considered to be one of the most important tropical catfish species for aquaculture purposes. Parasitological investigation was performed in two hundred naturally collected fish samples during the period of February to December 2014. The prevalence of gastrointestinal helminth parasites infecting C. gariepinus was investigated. A total of 249 helminth parasites belonging to four genera were recovered from 130 (65%) examined fish samples. They were digenea Orientocreadium batrachoides, cestode Polyonchobothrium clariae, and nematode Procamallanus laevionchus and Camallanus polypteri. Majority of the recorded parasites were found in the intestine. Female fish samples had higher prevalence rate 72 (90%) than males 58 (48.33%), and there was no significant difference (P > 0.05) in infestation rate between the two sexes. The relationship of host size (weight/length) and parasite infection showed that there was no significant difference in the parasitic infection among three classes, although fish of larger sizes had more infections. In addition, this study determines the effect of fish age on the prevalence and intensity of gastrointestinal parasites.

Cite this paper
Abdel-Gaber, R. , Garhy, M. and Morsy, K. (2015) Prevalence and Intensity of Helminth Parasites of African Catfish Clarias gariepinus in Lake Manzala, Egypt. Advances in Bioscience and Biotechnology, 6, 464-469. doi: 10.4236/abb.2015.67048.
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