Comparison of growth and shell attributes of four generation.s of the pearl oyster Pinctada fucata (Gould) produced in the hatchery


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Authors

  • T S Velayudhan Tuticorin Research Centre of Central Marine Fisheries Research Institute, Tuticorin - 628 001, India
  • A Chellam Tuticorin Research Centre of Central Marine Fisheries Research Institute, Tuticorin - 628 001, India
  • S Dharmaraj Tuticorin Research Centre of Central Marine Fisheries Research Institute, Tuticorin - 628 001, India
  • A C C Victor Tuticorin Research Centre of Central Marine Fisheries Research Institute, Tuticorin - 628 001, India
  • H Mohamad Kasim Tuticorin Research Centre of Central Marine Fisheries Research Institute, Tuticorin - 628 001, India

Abstract

The growth parameters of four successive filial generations of laboratory bred, farm reared pearl oyster, Pinctada fucata (Gould) were studied to find out the significant differences in growth of their four generations. The relationships of different characters obtained fron generations, and comparisons among them were studied from their respective reg ression coefficients. Morphometric characters of the four filial generations showed values of high significance as there were differences in the morphometric relationship within the generations and between the filial generations. The multiple regression analysis, and covariance analysis indicated the significance of the growth in DVM for the rour generations in the order of, 2nd (p = < 0.150), 3rd (p = < 0.200), 1st (p = < 0.300) and 4th (p = < 0.400), whereas the growth in thickness exhibited significance only in the 2nd generation (p = < 0.400) and there was no significance in the other generations. 1'he heritability (h2) obtained from the Selection Response (Sr) and Selection Differential (3D) indicated that the shell attributes HU(DVM + HL + T) exhibited comparatively higher heritability in the 1st and 2nd year, DVMI(DVM+HL+T) in 2nd year and DVM + HL + T in the 1st year in 3rd generation. The results were compared with similar 3tudies on P. fucata carried out in Japanese waters

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Author Biographies

  • T S Velayudhan, Tuticorin Research Centre of Central Marine Fisheries Research Institute, Tuticorin - 628 001, India
    Tuticorin Research Centre of Central Marine Fisheries Research Institute,
    Tuticorin - 628 001, India
  • A Chellam, Tuticorin Research Centre of Central Marine Fisheries Research Institute, Tuticorin - 628 001, India
    Tuticorin Research Centre of Central Marine Fisheries Research Institute,
    Tuticorin - 628 001, India
  • S Dharmaraj, Tuticorin Research Centre of Central Marine Fisheries Research Institute, Tuticorin - 628 001, India
    Tuticorin Research Centre of Central Marine Fisheries Research Institute,
    Tuticorin - 628 001, India
  • A C C Victor, Tuticorin Research Centre of Central Marine Fisheries Research Institute, Tuticorin - 628 001, India
    Tuticorin Research Centre of Central Marine Fisheries Research Institute,
    Tuticorin - 628 001, India
  • H Mohamad Kasim, Tuticorin Research Centre of Central Marine Fisheries Research Institute, Tuticorin - 628 001, India
    Tuticorin Research Centre of Central Marine Fisheries Research Institute,
    Tuticorin - 628 001, India

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Issue

Vol. 43 No. 1 (1996)

Section

Articles

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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

Velayudhan, T. S., Chellam, A., Dharmaraj, S., Victor, A. C. C., & Kasim, H. M. (2012). Comparison of growth and shell attributes of four generation.s of the pearl oyster Pinctada fucata (Gould) produced in the hatchery. Indian Journal of Fisheries, 43(1), 69-77. https://epubs.icar.org.in/index.php/IJF/article/view/8981