Identificación de stocks de Engraulis ringens en Chile utilizando morfometría de otolitos

Abstract. Anchovy (Engraulis ringens) population units were analyzed in three zones off the coast of Chile: 1: Arica-Iquique, 2: Coquimbo and 3: Talcahuano-Valdivia from samples obtained during the 2012 spawning season. We used 50 left sagittae otoliths from each zone to perform a morphometric analy...

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Autores principales:	Machuca,Cecilia, Cerna,Francisco, Muñoz,Lizandro
Lenguaje:	Spanish / Castilian
Publicado:	Universidad de Valparaíso. Facultad de Ciencias del Mar 2019
Materias:	Engraulis ringens otolith morphometric stock identification Chile
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572019000100144
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spelling	oai:scielo:S0718-195720190001001442019-07-31Identificación de stocks de Engraulis ringens en Chile utilizando morfometría de otolitosMachuca,CeciliaCerna,FranciscoMuñoz,Lizandro Engraulis ringens otolith morphometric stock identification Chile Abstract. Anchovy (Engraulis ringens) population units were analyzed in three zones off the coast of Chile: 1: Arica-Iquique, 2: Coquimbo and 3: Talcahuano-Valdivia from samples obtained during the 2012 spawning season. We used 50 left sagittae otoliths from each zone to perform a morphometric analysis, which included basic measurements, shape indexes and contour analysis (elliptical Fourier analysis). A MANOVA and Tukey multiple comparison analyses, applied on basic measures and shape indexes showed significant differences between zone 3 and zones 1 and 2. A classification by Canonical Discriminant analysis of elliptical Fourier harmonics, indicated significant differences among zones. It is concluded, therefore, that otolith shape analysis could be used to discriminate population units of Engraulis ringens. Better results were achieved using elliptic Fourier coefficients than using only shape indices.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.54 n.1 20192019-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572019000100144es10.22370/rbmo.2019.54.1.1674
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	Engraulis ringens otolith morphometric stock identification Chile
spellingShingle	Engraulis ringens otolith morphometric stock identification Chile Machuca,Cecilia Cerna,Francisco Muñoz,Lizandro Identificación de stocks de Engraulis ringens en Chile utilizando morfometría de otolitos
description	Abstract. Anchovy (Engraulis ringens) population units were analyzed in three zones off the coast of Chile: 1: Arica-Iquique, 2: Coquimbo and 3: Talcahuano-Valdivia from samples obtained during the 2012 spawning season. We used 50 left sagittae otoliths from each zone to perform a morphometric analysis, which included basic measurements, shape indexes and contour analysis (elliptical Fourier analysis). A MANOVA and Tukey multiple comparison analyses, applied on basic measures and shape indexes showed significant differences between zone 3 and zones 1 and 2. A classification by Canonical Discriminant analysis of elliptical Fourier harmonics, indicated significant differences among zones. It is concluded, therefore, that otolith shape analysis could be used to discriminate population units of Engraulis ringens. Better results were achieved using elliptic Fourier coefficients than using only shape indices.
author	Machuca,Cecilia Cerna,Francisco Muñoz,Lizandro
author_facet	Machuca,Cecilia Cerna,Francisco Muñoz,Lizandro
author_sort	Machuca,Cecilia
title	Identificación de stocks de Engraulis ringens en Chile utilizando morfometría de otolitos
title_short	Identificación de stocks de Engraulis ringens en Chile utilizando morfometría de otolitos
title_full	Identificación de stocks de Engraulis ringens en Chile utilizando morfometría de otolitos
title_fullStr	Identificación de stocks de Engraulis ringens en Chile utilizando morfometría de otolitos
title_full_unstemmed	Identificación de stocks de Engraulis ringens en Chile utilizando morfometría de otolitos
title_sort	identificación de stocks de engraulis ringens en chile utilizando morfometría de otolitos
publisher	Universidad de Valparaíso. Facultad de Ciencias del Mar
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572019000100144
work_keys_str_mv	AT machucacecilia identificaciondestocksdeengraulisringensenchileutilizandomorfometriadeotolitos AT cernafrancisco identificaciondestocksdeengraulisringensenchileutilizandomorfometriadeotolitos AT munozlizandro identificaciondestocksdeengraulisringensenchileutilizandomorfometriadeotolitos
_version_	1714202385844273152

Identificación de stocks de Engraulis ringens en Chile utilizando morfometría de otolitos

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