Length-converted catch curves: a powerful tool for fisheries research in the Tropics (part 1)

D. Pauly

Fishbyte, 1983, vol. 1, issue 2, 9-13

Abstract: A number of methods are available with the help of which total mortality (Z) can be estimated from length-frequency data. Thus it is possible to obtain reasonable estimates of Z from the mean length in a representative sample, or from the slope of Jones' cumulative plot. In this article, a variety of approaches for analysing length-frequency data are presented which represent the functional equivalent of [age structured] catch curves; these "length-converted catch curves" are built around assumptions similar to those involved in age-structured catch curves.

Keywords: Length frequency; Catch curves; Mathematical analysis (search for similar items in EconPapers)
JEL-codes: Q00 (search for similar items in EconPapers)
Date: 1983
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Citations: View citations in EconPapers (3)

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