PREDICTION EFFICIENCY OF THE HYDROGRAPHICAL PARAMETERS AS RELATED TO DISTRIBUTION PATTERNS OF THE PLEUROMAMMA SPECIES IN THE INDIAN OCEAN


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Authors

  • K V Jayalakshmy National Institute of Oceanography, Regional Centre, Cochin - 682 018, India
  • M Saraswathy National Institute of Oceanography, Regional Centre, Cochin - 682 018, India

Abstract

Among species of the genus Pleuromamma, Pleuromamma indica was the only species existing in thenorthern Indian Ocean- In the rest of the Indian Ocean the most abundant species was P. gracUis, andP. abdominalis was almost homogeneously distributed. Multiple regression model of P. indica abundanceon the parameters : temperature, salinity, dissolved oxygen and phosphate - phosphorous could explainmore than 85% of the variation in the predicted abundance, while those of 8 species obtained from theequatorial region and southern coast off South Africa could explain only 30% of the variations in thepredicted total abundance and it was attained only when average values of the parameters wereconsidered in both cases. Hence average values of the parameters were the optimal values of theparameters to be considered for maximum information about the distribution of Pleuromamma species.High diversity and low dominance (high evenness) were observed in the distribution of Pleuromammaspecies in the equatorial region

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Author Biographies

  • K V Jayalakshmy, National Institute of Oceanography, Regional Centre, Cochin - 682 018, India
    National Institute of Oceanography, Regional Centre, Cochin - 682 018, India
  • M Saraswathy, National Institute of Oceanography, Regional Centre, Cochin - 682 018, India
    National Institute of Oceanography, Regional Centre, Cochin - 682 018, India

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Issue

Vol. 37 No. 4 (1990)

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

Jayalakshmy, K. V., & Saraswathy, M. (2011). PREDICTION EFFICIENCY OF THE HYDROGRAPHICAL PARAMETERS AS RELATED TO DISTRIBUTION PATTERNS OF THE PLEUROMAMMA SPECIES IN THE INDIAN OCEAN. Indian Journal of Fisheries, 37(4), 313-319. https://epubs.icar.org.in/index.php/IJF/article/view/10548