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International Journal of Fisheries and Aquatic Studies
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(ICV-Poland) Impact Value: 76.37, Impact Factor: RJIF 5.69
E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2019, Vol. 7, Issue 1, Part D

Early ontogeny of the Asian catfish Magur, Clarias batrachus (Linnaeus, 1758)


Author(s): Dola Roy, Anisa Mitra, Missidona Biswas, Shrabastee Chakraborty, Subharthi Pal and Sumit Homechaudhuri

Abstract: The Asian catfish, Clarias batrachus (Linnaeus, 1758), known as magur, is a popular food fish of Asian countries for its medicinal value. The major constrain behind culturing this species is scanty knowledge on larval rearing and fourth day mortality syndrome. For mass production of C. batrachus, identification of significant developmental events is essential. Here early and post-embryonic stages of C. batrachus were described through microphotographs. The first mitotic cleavage occurred at 62 minutes post-fertilization resulting in 4, 8, 16, 32, 64 blastomeres, followed by development of morula, blastula and gastrula stages. The first larva (Total Length 4.5 ± 0.5 mm) emerged after 26 hours at 26 ± 0.5°C. At fourth day post hatching, the larvae (Total Length 9.2 ± 1 mm) commenced fully on exogenous feeding. This study specified the ontogenic changes and commencement of exogenous feeding in C. batrachus which would lead to successful larval rearing for mass production.

Pages: 287-292  |  319 Views  27 Downloads

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How to cite this article:
Dola Roy, Anisa Mitra, Missidona Biswas, Shrabastee Chakraborty, Subharthi Pal, Sumit Homechaudhuri. Early ontogeny of the Asian catfish Magur, Clarias batrachus (Linnaeus, 1758). Int J Fish Aquat Stud 2019;7(1):287-292.
International Journal of Fisheries and Aquatic Studies