Structure and estimation framework for Atlantic Bluefin tuna operating models.

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dc.contributor.authorCarruthers, Tom
dc.contributor.authorKimoto, Ai
dc.contributor.authorPowers, Joseph E
dc.contributor.authorKell, Laurence
dc.contributor.authorButterworth, Doug S
dc.contributor.authorLauretta, Matthew V
dc.contributor.authorKitakado, Toshihide
dc.date.accessioned2017-03-13T11:54:51Z
dc.date.available2017-03-13T11:54:51Z
dc.date.issued2016
dc.description.abstractA preliminary spatial, multi-stock statistical catch-at-length assessment model is developed as a basis for defining operating models for Atlantic bluefin tuna. The modifiable multi-stock model (M3) aims to improve upon previous multi-stock models such as MAST (Taylor et al. 2011) in three core areas. The first iteration of the model: (1) makes use of indices of abundance specific to time-area strata (e.g. for a given ocean area and month of the year), (2) does not use conventional tagging data to inform exploitation rates, (3) is fitted to samples of length composition data and therefore avoids established problems related to ageing individuals based on a growth curve and length data only. In this paper we provide a full account of preliminary M3 model equations and discuss the results of simulation evaluations of model estimation performance. Limitations of the current approach and future areas for model development are also discussed.en_ZA
dc.identifier.apacitationCarruthers, T., Kimoto, A., Powers, J. E., Kell, L., Butterworth, D. S., Lauretta, M. V., & Kitakado, T. (2016). Structure and estimation framework for Atlantic Bluefin tuna operating models. <i>ICCAT Collective Volume of Scientific Papers</i>, http://hdl.handle.net/11427/24036en_ZA
dc.identifier.chicagocitationCarruthers, Tom, Ai Kimoto, Joseph E Powers, Laurence Kell, Doug S Butterworth, Matthew V Lauretta, and Toshihide Kitakado "Structure and estimation framework for Atlantic Bluefin tuna operating models." <i>ICCAT Collective Volume of Scientific Papers</i> (2016) http://hdl.handle.net/11427/24036en_ZA
dc.identifier.citationCarruthers, T., Kimoto, A., Powers, J., Kell, L., Butterworth, D.S., Lauretta, M.V. and Kitakado, T. 2016. Structure and estimation framework for Atlantic Bluefin tuna operating models. SCRS/2015/179: Collect. Vol. Sci. Pap. ICCAT, 72(7): 1782-1795.en_ZA
dc.identifier.issn1021-5212 (print edition), 1997-1990 (online edition)en_ZA
dc.identifier.ris TY - Journal Article AU - Carruthers, Tom AU - Kimoto, Ai AU - Powers, Joseph E AU - Kell, Laurence AU - Butterworth, Doug S AU - Lauretta, Matthew V AU - Kitakado, Toshihide AB - A preliminary spatial, multi-stock statistical catch-at-length assessment model is developed as a basis for defining operating models for Atlantic bluefin tuna. The modifiable multi-stock model (M3) aims to improve upon previous multi-stock models such as MAST (Taylor et al. 2011) in three core areas. The first iteration of the model: (1) makes use of indices of abundance specific to time-area strata (e.g. for a given ocean area and month of the year), (2) does not use conventional tagging data to inform exploitation rates, (3) is fitted to samples of length composition data and therefore avoids established problems related to ageing individuals based on a growth curve and length data only. In this paper we provide a full account of preliminary M3 model equations and discuss the results of simulation evaluations of model estimation performance. Limitations of the current approach and future areas for model development are also discussed. DA - 2016 DB - OpenUCT DP - University of Cape Town J1 - ICCAT Collective Volume of Scientific Papers LK - https://open.uct.ac.za PB - University of Cape Town PY - 2016 SM - 1021-5212 (print edition), 1997-1990 (online edition) T1 - Structure and estimation framework for Atlantic Bluefin tuna operating models TI - Structure and estimation framework for Atlantic Bluefin tuna operating models UR - http://hdl.handle.net/11427/24036 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/24036
dc.identifier.vancouvercitationCarruthers T, Kimoto A, Powers JE, Kell L, Butterworth DS, Lauretta MV, et al. Structure and estimation framework for Atlantic Bluefin tuna operating models. ICCAT Collective Volume of Scientific Papers. 2016; http://hdl.handle.net/11427/24036.en_ZA
dc.languageengen_ZA
dc.publisherInternational Commission for the Conservation of Atlantic Tunasen_ZA
dc.publisher.departmentMarine Resource Assessment and Management Groupen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.relation.ispartofseriesCollective Volume of Scientific Papersen_ZA
dc.sourceICCAT Collective Volume of Scientific Papersen_ZA
dc.source.urihttps://www.iccat.int/en/pubs_spec.htm
dc.titleStructure and estimation framework for Atlantic Bluefin tuna operating models.en_ZA
dc.typeJournal Articleen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
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