LARVAL BEHAVIOUR DURING GROWTH AND DEVELOPMENT OF AIR-BREATHING HABIT IN COLISA FASCIATUS (BL. & SCHN.)


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Authors

  • M S Prasad Fish Research Laboratory, Dept. of Zoology, Bihar University, Muzaffarpur 842001, Bihar.
  • Pushpa Prasad Fish Research Laboratory, Dept. of Zoology, Bihar University, Muzaffarpur 842001, Bihar.

Abstract

Beiiavioral studies of the larva of Colisa fasciatus were made from the first
day of hatching till the establishment of the air-breathing habit, both in the laboratory
and in the natural habitat. Fertilized eggs obtained, by pituitary hypophysation
technique hatched after 24 h of spawning. Depletion of the yolk-sac
and development of the gills occurred on the second day of hatching. Feeding
started after complete depletion of yolk-sac. Some of the rapidly growing larvae
fshoot-fry) showed cannibalism. 18-20 days old larvae, with body length 11-12
mm, showed frequent surfacing, first sign of aerial breathing. The air-gulping
frequency was higher (9O-120|h) in the beginning, but decreased with the formation
or the suprabranchial chamber.

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Author Biographies

  • M S Prasad, Fish Research Laboratory, Dept. of Zoology, Bihar University, Muzaffarpur 842001, Bihar.
    Fish Research Laboratory, Dept. of Zoology, Bihar University,
    Muzaffarpur 842001, Bihar.
  • Pushpa Prasad, Fish Research Laboratory, Dept. of Zoology, Bihar University, Muzaffarpur 842001, Bihar.
    Fish Research Laboratory, Dept. of Zoology, Bihar University,
    Muzaffarpur 842001, Bihar.

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Issue

Vol. 32 No. 2 (1985)

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

Prasad, M. S., & Prasad, P. (2011). LARVAL BEHAVIOUR DURING GROWTH AND DEVELOPMENT OF AIR-BREATHING HABIT IN COLISA FASCIATUS (BL. & SCHN.). Indian Journal of Fisheries, 32(2), 185-191. https://epubs.icar.org.in/index.php/IJF/article/view/11633