STUDIES ON CERTAIN ASPECTS OF THE MORPHO-HISTOLOGY OF INDIAN SHAD HILSA, TENUALOSA ILISHA (HAMILTON) IN RELATION TO FOOD AND FEEDING HABITS


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Authors

  • D K De Central Inland Capture Fisheries Research Institute, Barrackpore, 743 101, India
  • N C Datta Central Inland Capture Fisheries Research Institute, Barrackpore, 743 101, India

Abstract

Morphology and histology of the alimentary canal of hilsa, Tenwlosa ilisha (Hamilton) in relation to
feeding habit have been studied. The study reveals that the absence of teeth and masticatory organs in
the mouth, presence of very fine, numerous elongated closely set gill rakers, pharyngeal pouch, short
narrow cylindrical oesophagus, highly developed muscular gizzard like pyloric stomach and moderately
long intestine (RLG varies between 0.86 and 1.87) in hilsa show that the species is predominantly microphagous
in feeding habit. The results of stomach content analysis of fry, juvenile and adult also give
support to the above contention. It is also evident that young hilsa mainly subsist on zooplankton and
adult are microphagous planktivore.

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Author Biographies

  • D K De, Central Inland Capture Fisheries Research Institute, Barrackpore, 743 101, India
    Central Inland Capture Fisheries Research Institute, Barrackpore, 743 101, India
  • N C Datta, Central Inland Capture Fisheries Research Institute, Barrackpore, 743 101, India
    Central Inland Capture Fisheries Research Institute, Barrackpore, 743 101, India

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Issue

Vol. 37 No. 2 (1990)

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

De, D. K., & Datta, N. C. (2011). STUDIES ON CERTAIN ASPECTS OF THE MORPHO-HISTOLOGY OF INDIAN SHAD HILSA, TENUALOSA ILISHA (HAMILTON) IN RELATION TO FOOD AND FEEDING HABITS. Indian Journal of Fisheries, 37(2), 189-198. https://epubs.icar.org.in/index.php/IJF/article/view/10470