Virtual Population Analysis A Practical Manual for Stock Assessment

Hans Lassen and Paul Medley;Fishery and Aquaculture Economics and Policy Division

Virtual Population Analysis A Practical Manual for Stock Assessment

A Practical Manual for Stock Assessment

Year of publication 2001

Pages 129

Author Hans Lassen and Paul Medley;Fishery and Aquaculture Economics and Policy Division

Product type Book (series)

ISBN 925104533X

Series title FAO Fisheries Technical Paper

Series number 0429-9345 - T400

Edition 1

Full item page

Synopsis (short abstract) Virtual Population Analysis (VPA) is a widely used model for the analysis of fished populations. While there are very many VPA techniques, they vary in the way they use data and fit the model rather than in the form of the model itself. This manual describes the common VPA model and the assumptions on which it is based, together with descriptions of associated diagnostic procedures and common reference points. More importantly, the manual describes the numerical techniques which can be used to f it the model based on weighted least-squares, which is the basis for the ADAPT approach. The techniques are described so that they are readily implemented in a spreadsheet. General methods and specific examples are given to enable the readers to develop an approach suitable for their own data and fisheries.

Cite this content as:

Lassen, H.; Medley, P. Virtual population analysis. A practical manual for stock assessment. FAO Fisheries Technical Paper. No. 400. Rome, FAO. 2001. 129p. (Includes a CD Rom containing additional examples and exercises.)

Language English

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