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dc.contributor.authorBogaards, J A
dc.contributor.authorKraak, S B M
dc.contributor.authorRijnsdorp, A D
dc.date.accessioned2011-07-13T14:51:09Z
dc.date.available2011-07-13T14:51:09Z
dc.date.issued2009
dc.identifier.citationBogaards, J. A., Kraak, S. B. M., and Rijnsdorp, A. D. 2009. Bayesian survey-based assessment of North Sea plaice (Pleuronectes platessa): extracting integrated signals from multiple surveys. – ICES Journal of Marine Science, 66: 665–679.en_GB
dc.identifier.issn1054-3139
dc.identifier.urihttp://hdl.handle.net/10793/416
dc.identifier.urihttp://dx.doi.org/10.1093/icesjms/fsp038
dc.descriptionThis is a pre-copy-editing, author-produced PDF of an article accepted for publication in ICES Journal of Marine Science following peer review. The definitive publisher-authenticated version Bogaards, J. A., Kraak, S. B. M., and Rijnsdorp, A. D. 2009. Bayesian survey-based assessment of North Sea plaice (Pleuronectes platessa): extracting integrated signals from multiple surveys. – ICES Journal of Marine Science, 66: 665–679 is available online at: http://icesjms.oxfordjournals.org/content/66/4/665en_GB
dc.descriptionpeer-reviewed
dc.description.abstractDependence on a relatively small sample size is generally viewed as a big disadvantage for survey-based assessments. We propose an integrated catch-at-age model for research vessel data derived from multiple surveys, and illustrate its utility in estimating trends in North Sea plaice abundance and fishing mortality. Parameter estimates were obtained by Bayesian analysis, which allows for estimation of uncertainty in model parameters attributable to measurement error. Model results indicated constant fishing selectivity over the distribution area of the North Sea plaice stock, with decreased selectivity at older age. Whereas separate analyses of survey datasets suggested different biomass trends in the southeast than in the western and central North Sea, a combined analysis demonstrated that the observations in both subareas were compatible and that SSB has been increasing over the period 1996- 2005. The annual proportion of fish that dispersed in a northwesterly direction was estimated to increase from about 10% at age 2 to 33% at age 5 and older. We also found higher fishing mortality rates than reported in ICES assessments, which could be the consequence of inadequate specification of catchability-at-age in this study or underestimated fishing mortality by the conventional ICES assessment, which relies on official landings figures.en_GB
dc.language.isoenen_GB
dc.publisherOxford University Pressen_GB
dc.relation.ispartofseriesICES Journal of Marine Science;66 (4)
dc.subjectBayesian statisticsen_GB
dc.subjectstate-space modelsen_GB
dc.subjectpopulation dynamicsen_GB
dc.subjectsurvey-based assessmenten_GB
dc.subjectplaiceen_GB
dc.titleBayesian survey-based assessment of North Sea plaice (Pleuronectes platessa): extracting integrated signals from multiple surveysen_GB
dc.typeArticleen_GB
refterms.dateFOA2018-01-12T05:14:00Z


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