Comparing growth curves with asymmetric heavy-tailed errors: Application to the southern blue whiting (<i>Micromesistius australis</i>)

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dc.contributor.authorContreras-Reyes, Javier E.
dc.contributor.authorArellano-Valle, Reinaldo B.
dc.contributor.authorMariella Canales, T.
dc.date.accessioned2025-01-23T21:42:02Z
dc.date.available2025-01-23T21:42:02Z
dc.date.issued2014
dc.description.abstractVon Bertalanffy growth models (VBGMs) have been used in several studies of age, growth and natural mortality. Assuming that the residuals about this growth model are normal is, however, questionable. Here, we assume that these residuals are heteroskedastic and follow a log-skew-t distribution, a flexible distribution that is asymmetric and heavy-tailed. We apply the proposed methodology to length-at-age data for the southern blue whiting (Micromesistius australis) collected from Chilean austral continental waters between 1997 and 2010. The estimates of the VBGM parameters were L-infinity = 57.042 cm, K = 0.173 yr(-1), t(0) = -2.423 yr for males, and L-infinity= 61.318 cm, K = 0.163 yr(-1), t(0) = -2.253 yr for females. The BIC criteria suggest that females grow significantly faster than males and that length-at-age for both sexes exhibits significant heteroskedasticity and asymmetry. (C) 2014 Elsevier B.V. All rights reserved.
dc.description.funderFONDECYT (Chile)
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.fishres.2014.05.006
dc.identifier.eissn1872-6763
dc.identifier.issn0165-7836
dc.identifier.urihttps://doi.org/10.1016/j.fishres.2014.05.006
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101652
dc.identifier.wosidWOS:000340220800009
dc.language.isoen
dc.pagina.final94
dc.pagina.inicio88
dc.revistaFisheries research
dc.rightsacceso restringido
dc.subjectVon Bertalanffy
dc.subjectLog-skew-t distribution
dc.subjectSouthern blue whiting
dc.subjectHeteroskedasticity
dc.subjectHeavy-tails
dc.subject.ods15 Life on Land
dc.subject.ods14 Life Below Water
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa14 Vida submarina
dc.titleComparing growth curves with asymmetric heavy-tailed errors: Application to the southern blue whiting (<i>Micromesistius australis</i>)
dc.typeartículo
dc.volumen159
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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