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First record of ectoparasitic African Trichodinids (Ciliophora: Peritrichida) in a cichlid fish Oreochromis mossambicus (Peters 1852) from the Churni river system, West Bengal, India

2006; Brill; Volume: 56; Issue: 3 Linguagem: Inglês

10.1163/157075606778441912

1570-7563

Amlan Kumar Mitra, Probir K. Bandyopadhyay,

Myxozoan Parasites in Aquatic Species

Abstract Oreochromis mossambicus (Peters 1852) and Oreochromis niloticus niloticus Linnaeus, 1758 are two popular freshwater fishes introduced from Africa to India. There are many records of different species of trichodinid ectoparasites infesting wild and cultured cichlids in Africa, but no such study has been conducted on this parasitic group in India. The fishes Oreochromis mossambicus and Oreochromis niloticus niloticus were investigated for the occurrence of trichodinid ciliophorans. Oreochromis mossambicus was found positive for two species, viz., Trichodina centrostrigeata Basson, Van As & Paperna, 1983 and Paratrichodina africana Kazubski & El-Tantawy, 1986. Oreochromis niloticus niloticus was found not to be infested with any species of trichodinid ciliophorans, although, interestingly, Paratrichodina africana was first discovered in this host fish. Comparative descriptions and prevalence of these two above-mentioned species are presented.