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dc.contributorConsejo Nacional de Ciencia y Tecnología, Universidad Autónoma de Sinaloa.en-US
dc.creatorUrías-Sotomayor, Ricardo
dc.creatorRivera-Parra, Gabriel Iván
dc.creatorMartínez-Cordero, Francisco Javier
dc.creatorCastañeda-Lomas, Nicolás
dc.creatorPérez-González, Raúl
dc.creatorRodríguez-Domínguez, Guillermo
dc.date2018-05-29
dc.date.accessioned2020-11-05T13:36:17Z
dc.date.available2020-11-05T13:36:17Z
dc.identifierhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol46-issue2-fulltext-8
dc.identifier10.3856/vol46-issue2-fulltext-8
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/159029
dc.descriptionThe population dynamics of jumbo squid Dosidicus gigas from northwest Mexico was evaluated for the period 1974-2012 using Schaefer’s model, where model parameters were estimated with the catch maximum sustainable yield method (Catch-MSY) using two prior intrinsic population increase rate (r) range values (1.0 to 2.0 and 1.5 to 2.0). Estimated parameters with both prior r ranges were 1.23 and 1.68 yr-1 for r and 243,836 and 190,468 ton for carrying capacity (k), respectively. Corresponding management quantities were 75,147 and 80,098 ton for the maximum sustainable yield (MSY) and 121,918 and 95,234 ton for the biomass at MSY (BMSY). Estimated jumbo squid biomass dropped below the BMSY after 2003, and near to 0.2 k in 2012. The Schaefer’s model showed that declines in estimated biomass were preceded by catches that exceeded the MSY. Strong El Niño-Southern Oscillation events can change the availability of jumbo squid in northwest Mexico through migratory processes and phenotype changes in maturation size, but stock biomass variability is most likely to be caused by fishing.en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherPontificia Universidad Católica de Valparaísoen-US
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol46-issue2-fulltext-8/921
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol46-issue2-fulltext-8/1134
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol46-issue2-fulltext-8/1136
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol46-issue2-fulltext-8/1137
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol46-issue2-fulltext-8/1138
dc.sourceLatin American Journal of Aquatic Research; Vol 46, No 2 (2018); 330-336en-US
dc.sourcePlataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 46, No 2 (2018); 330-336es-ES
dc.source0718-560X
dc.source0718-560X
dc.subjectDosidicus gigas; jumbo squid; stock assessment; Catch-MSY; Schaefer’s Model; Gulf of Californiaen-US
dc.titleStock assessment of jumbo squid Dosidicus gigas in northwest Mexicoen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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