Virtual Population Analysis A Practical Manual for Stock Assessment

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dc.creatorHans Lassen and Paul Medley;Fishery and Aquaculture Economics and Policy Division
dc.date2023-10-11T08:11:29Z
dc.date2023-10-11T08:11:29Z
dc.date2001
dc.date2020-11-10T19:45:54.0000000Z
dc.date.accessioned2026-06-27T22:55:33Z
dc.descriptionVirtual 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.
dc.format129
dc.formatapplication/pdf
dc.identifier925104533X
dc.identifier0429-9345
dc.identifierhttps://openknowledge.fao.org/handle/20.500.14283/X9026E
dc.identifierhttp://www.fao.org/3/a-x9026e.pdf
dc.identifier.urihttp://hdl.handle.net/123456789/266890
dc.languageEnglish
dc.relationFAO Fisheries Technical Paper
dc.relation0429-9345 - T400
dc.rightsFAO
dc.titleVirtual Population Analysis A Practical Manual for Stock Assessment
dc.titleVirtual Population Analysis A Practical Manual for Stock Assessment
dc.titleA Practical Manual for Stock Assessment
dc.titleA Practical Manual for Stock Assessment
dc.typeBook (series)

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