Energy and elemental composition (C, N, H) in growing megalopa of an edible crab Charybdis variegata (Fabricus)


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Authors

  • S Kumaresan Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai - 608 502, India.
  • P Soundarapandian Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai - 608 502, India.
  • S P Karuppiah Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai - 608 502, India.
  • T Kannupandi Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai - 608 502, India.

Abstract

The larval development of Charybdis variegata consists of five zoeal and one
megalopa stages. The megalopa stage appears as a miniature adult or a preadult.
Hence a radical change is expected functionally in the form of changes in
biomass-dry weight, energy, elemental composition (C, N, H), respiration and
excretion. In the laboratory, the dry weight of individual megalopa increased from
226.18 to 439.22 ug, carbon increased from 73.80 to 166.70 ug/ind, hydrogen and
nitrogen content range was from 10.12 to 22.6 ug and 17.9 to 39.18ug respectively.
C : N ratio in the 0 day was 4.0:1.0 and in 6th day it was 4.1:1.0. C : H ration in the
0 day was 7.2 : 1.0 and in 6th day it was 7.3 : 1.0.

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Author Biographies

  • S Kumaresan, Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai - 608 502, India.
    Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai -
    608 502, India.
  • P Soundarapandian, Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai - 608 502, India.
    Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai -
    608 502, India.
  • S P Karuppiah, Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai - 608 502, India.
    Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai -
    608 502, India.
  • T Kannupandi, Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai - 608 502, India.
    Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai -
    608 502, India.

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Issue

Vol. 48 No. 2 (2001)

Section

Note

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

Kumaresan, S., Soundarapandian, P., Karuppiah, S. P., & Kannupandi, T. (2011). Energy and elemental composition (C, N, H) in growing megalopa of an edible crab Charybdis variegata (Fabricus). Indian Journal of Fisheries, 48(2), 237-241. https://epubs.icar.org.in/index.php/IJF/article/view/8469