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Causes of fish depletion: a factor analysis approach


  • Deka, T.K.
  • Goswami, M.M.
  • Kakati, M.


A study was conducted in 54 wetlands of 13 districts of Assam, India to evaluate the causes of fish depletion. Twenty-two variables were considered for the study. Seven factors were extracted through factor analysis (Principal Component Analysis) based on Eigen Value Criteria of more than one. These seven factors together accounted for 69.3% of the total variance. Based on the characteristics of the variables, all the factors were given descriptive names. These variables can be used to measure the extent of management deficiency of the causes of fish depletion in the wetlands. The factors are management deficiency, organic load interference, catchment condition, extrinsic influence, fishermenÆs ignorance, external environment and aquaculture program. Management deficiency accounted for a substantial portion of the total variance.

Suggested Citation

  • Deka, T.K. & Goswami, M.M. & Kakati, M., 2005. "Causes of fish depletion: a factor analysis approach," Naga, The WorldFish Center, vol. 28(1/2), pages 37-42.
  • Handle: RePEc:wfi:wfnaga:38321

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    References listed on IDEAS

    1. Meinzen-Dick, Ruth Suseela & Adato, Michelle & Haddad, Lawrence James & Hazell, Peter B. R., 2003. "Impacts of agricultural research on poverty," FCND briefs 164, International Food Policy Research Institute (IFPRI).
    2. Ahmed, M. & Dey, M.M. & Williams, M.J., 1999. "Assessment of the impact of aquatic resources research by ICLARM: scope and methodologies," Naga, The WorldFish Center, vol. 22(2), pages 4-10.
    3. Douthwaite, Boru & Kuby, Thomas & van de Fliert, Elske & Schulz, Steffen, 2003. "Impact pathway evaluation: an approach for achieving and attributing impact in complex systems," Agricultural Systems, Elsevier, vol. 78(2), pages 243-265, November.
    4. Springer-Heinze, Andreas & Hartwich, Frank & Henderson, J. Simon & Horton, Douglas & Minde, Isaac, 2003. "Impact pathway analysis: an approach to strengthening the impact orientation of agricultural research," Agricultural Systems, Elsevier, vol. 78(2), pages 267-285, November.
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    More about this item


    Inland fisheries; Depleted stocks; Overfishing; Flood plains; Wetlands;

    JEL classification:

    • Q00 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - General - - - General


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