On the maturity and spawning of an ornamental fish, Erethistes pussilus Muller & Troschel


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Authors

  • J Phukon Department of Zoology, Sonari College, Sibsagar - 785 690, Assam
  • S P Biswas Department of Life Sciences, Dibrugarh University, Dibrugarh - 786 004, Assam

Abstract

Certain aspects of the reproductive biology of an ornamental fish,Erethistes pussilus have been studied from the Brahmaputra drainagesystem in Upper Assam. The length at first maturity of the species iscalculated at 5.2 cm for male and 6.7 cm for female. Ova diameter study,gonadosomatic ratio and histological studies of gonadal developmentindicate that the fish matures in May-June. It has a short breeding season(July-August). The absolute fecundity ranged from 1,312 to 3,744whereas, the relative fecundity varied between 220 and 1672. The speciesis an isochronal spawner with moderate fecundity

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Author Biographies

  • J Phukon, Department of Zoology, Sonari College, Sibsagar - 785 690, Assam
    Department of Zoology, Sonari College, Sibsagar - 785 690, Assam
  • S P Biswas, Department of Life Sciences, Dibrugarh University, Dibrugarh - 786 004, Assam
    Department of Life Sciences, Dibrugarh University, Dibrugarh - 786 004, Assam

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Issue

Vol. 49 No. 1 (2002)

Section

Articles

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Phukon, J., & Biswas, S. P. (2011). On the maturity and spawning of an ornamental fish, Erethistes pussilus Muller & Troschel. Indian Journal of Fisheries, 49(1), 51-57. https://epubs.icar.org.in/index.php/IJF/article/view/8370