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A simple spreadsheet model to incorporate seasonal growth into length-based stock assessment methods

Author

Listed:
  • de Graaf, G.J.
  • Dekker, P.

Abstract

The paper describes a method by which seasonal growth can be incorporated into length-converted catch curves and cohort analyses using a spreadsheet. The method is based on calculating the length of fish using seasonal growth parameters on a daily basis. A LOOKUP function is then used to find the age corresponding to the length.

Suggested Citation

  • de Graaf, G.J. & Dekker, P., 2006. "A simple spreadsheet model to incorporate seasonal growth into length-based stock assessment methods," Naga, The WorldFish Center, vol. 29(3/4), pages 46-54.
    • Handle: RePEc:wfi:wfnaga:38368
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    File URL: http://hdl.handle.net/20.500.12348/1768
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    References listed on IDEAS

    as
    1. Pauly, D., 1990. "Length-converted catch curves and the seasonal growth of fishes," Fishbyte, The WorldFish Center, vol. 8(3), pages 33-38.
    2. Sparre, P., 1991. "Estimation of yield per recruit when growth and fishing mortality oscillate seasonally," Fishbyte, The WorldFish Center, vol. 9(1), pages 40-44.
    3. Sparre, P., 1990. "Can we use traditional length-based fish stock assessment when growth is seasonal?," Fishbyte, The WorldFish Center, vol. 8(3), pages 29-32.
    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    Stock assessment; Growth curves;

    JEL classification:

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

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