Sensitivity analysis of catch-per-unit-effort of Atlantic bigeye tuna (Thunnus obesus) data series applied to production model

Different datasets and a Bayesian production model were used to assess the status of the Atlantic bigeye tuna (Thunnus obesus) stock. Several datasets convey little information hence estimations of parameters are imprecise unless a very restrictive prior is used. Modes of posteriors calculated for c...

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Autor principal:	Andrade,Humber A
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2015
Materias:	stock assessment biomass production model Bayesian model adaptive importance sampling
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000100013
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spelling	oai:scielo:S0718-560X20150001000132015-04-15Sensitivity analysis of catch-per-unit-effort of Atlantic bigeye tuna (Thunnus obesus) data series applied to production modelAndrade,Humber A stock assessment biomass production model Bayesian model adaptive importance sampling Different datasets and a Bayesian production model were used to assess the status of the Atlantic bigeye tuna (Thunnus obesus) stock. Several datasets convey little information hence estimations of parameters are imprecise unless a very restrictive prior is used. Modes of posteriors calculated for composite datasets are in between modes of the posteriors calculated for separated datasets. Most of the calculations indicate that biomass has decreased until the beginning of 1990's when the stock was overfished. Catches decreased after 1999 but there is doubt if the stock was recovering in 2000's. The answer depends on the dataset and on the prior distribution.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.43 n.1 20152015-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000100013en10.3856/vol43-issue1-fulltext-13
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	stock assessment biomass production model Bayesian model adaptive importance sampling
spellingShingle	stock assessment biomass production model Bayesian model adaptive importance sampling Andrade,Humber A Sensitivity analysis of catch-per-unit-effort of Atlantic bigeye tuna (Thunnus obesus) data series applied to production model
description	Different datasets and a Bayesian production model were used to assess the status of the Atlantic bigeye tuna (Thunnus obesus) stock. Several datasets convey little information hence estimations of parameters are imprecise unless a very restrictive prior is used. Modes of posteriors calculated for composite datasets are in between modes of the posteriors calculated for separated datasets. Most of the calculations indicate that biomass has decreased until the beginning of 1990's when the stock was overfished. Catches decreased after 1999 but there is doubt if the stock was recovering in 2000's. The answer depends on the dataset and on the prior distribution.
author	Andrade,Humber A
author_facet	Andrade,Humber A
author_sort	Andrade,Humber A
title	Sensitivity analysis of catch-per-unit-effort of Atlantic bigeye tuna (Thunnus obesus) data series applied to production model
title_short	Sensitivity analysis of catch-per-unit-effort of Atlantic bigeye tuna (Thunnus obesus) data series applied to production model
title_full	Sensitivity analysis of catch-per-unit-effort of Atlantic bigeye tuna (Thunnus obesus) data series applied to production model
title_fullStr	Sensitivity analysis of catch-per-unit-effort of Atlantic bigeye tuna (Thunnus obesus) data series applied to production model
title_full_unstemmed	Sensitivity analysis of catch-per-unit-effort of Atlantic bigeye tuna (Thunnus obesus) data series applied to production model
title_sort	sensitivity analysis of catch-per-unit-effort of atlantic bigeye tuna (thunnus obesus) data series applied to production model
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000100013
work_keys_str_mv	AT andradehumbera sensitivityanalysisofcatchperuniteffortofatlanticbigeyetunathunnusobesusdataseriesappliedtoproductionmodel
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Sensitivity analysis of catch-per-unit-effort of Atlantic bigeye tuna (Thunnus obesus) data series applied to production model

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