Fish yield prediction through morpho-edaphic index and estimation of stocking density for Indian reservoirs


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Authors

  • V V Sugunan Central Inland Fisheries Research Institute, Barrackpore-700 120, Kolkata, India
  • S K Mandal Central Inland Fisheries Research Institute, Barrackpore-700 120, Kolkata, India
  • D S Krishna Rao Central Inland Fisheries Research Institute, Barrackpore-700 120, Kolkata, India

Abstract

A maximum sustainable yield (MSY) prediction model based on morpho-edaphic
index (MEI) applicable for the Indian reservoirs has been constructed for the
first time as MSY=0.9897* MEI 1.3888 (R2 = 0.7366). A non-linear positive relation
exists between MEI and MSY of all species. A model for estimating the
present mean yield has also been worked out. Observations on present mean
catch from seventeen reservoirs show that correlation between depth and fish
yield is non-significant. Significant negative correlation is reported in respect
of yield and size of water body. A positive correlation exists in specific conductivity
and MEI. A formula has been proposed to calculate the stocking density
of medium and large reservoirs in India based on difference between MSY and
estimated mean yield, growth rate of stocked fish, rearing time and estimated
mortality factor. The paper presents formulae for (1) predicting MSY and (2)
calculating stocking density in reservoirs where no record of present catch is
available

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Author Biographies

  • V V Sugunan, Central Inland Fisheries Research Institute, Barrackpore-700 120, Kolkata, India
    Central Inland Fisheries Research Institute, Barrackpore-700 120, Kolkata, India
  • S K Mandal, Central Inland Fisheries Research Institute, Barrackpore-700 120, Kolkata, India
    Central Inland Fisheries Research Institute, Barrackpore-700 120, Kolkata, India
  • D S Krishna Rao, Central Inland Fisheries Research Institute, Barrackpore-700 120, Kolkata, India
    Central Inland Fisheries Research Institute, Barrackpore-700 120, Kolkata, India

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Issue

Vol. 49 No. 4 (2002)

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

Sugunan, V. V., Mandal, S. K., & Rao, D. S. K. (2011). Fish yield prediction through morpho-edaphic index and estimation of stocking density for Indian reservoirs. Indian Journal of Fisheries, 49(4), 369-378. https://epubs.icar.org.in/index.php/IJF/article/view/8209