Body shape variation between farms of tilapia (Oreochromis sp.) in Colombian Andes using landmark-based geometric morphometrics

ABSTRACT Tilapia is the most economically important fish in the aquaculture of different countries from the Americas. This species exhibits morphological plasticity under different conditions. In this study, we used landmark-based geometric morphometric to describe the shape variation of two red and...

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Autores principales:	Montoya-López,Andrés, Moreno-Arias,Cintia, Tarazona-Morales,Ariel, Olivera-Angel,Martha, Betancur,James
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2019
Materias:	tilapia anatomic landmarks morphology variation aquaculture
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000100194
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spelling	oai:scielo:S0718-560X20190001001942019-03-27Body shape variation between farms of tilapia (Oreochromis sp.) in Colombian Andes using landmark-based geometric morphometricsMontoya-López,AndrésMoreno-Arias,CintiaTarazona-Morales,ArielOlivera-Angel,MarthaBetancur,James tilapia anatomic landmarks morphology variation aquaculture ABSTRACT Tilapia is the most economically important fish in the aquaculture of different countries from the Americas. This species exhibits morphological plasticity under different conditions. In this study, we used landmark-based geometric morphometric to describe the shape variation of two red and one Nile tilapia farmed populations in Colombian Andes. We recorded significant morphological differences between all studied farms (P < 0.001, in the multivariate analysis of variance). In this way, individuals from the Nile tilapia farms were more elongated and had a more ventral position of the posterior extreme of the orbit and the insertion of pectoral fin than red tilapias. Moreover, the Nile group showed a shorter space between the mouth profile and the posterior extreme of the orbit, compared to red groups. On the other hand, individuals from farm red 2 were deep bodied and had a smaller head compared to tilapias from farm red 1. Our results provide evidence that tilapias from different farms in Colombian Andes display differences in body shape, and can be applied to selective breeding programs after establishing the contribution of genetic and environmental effects on tilapia shape as well as the preferences of consumers for the body shape of the species.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.47 n.1 20192019-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000100194en10.3856/vol47-issue1-fulltext-23
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	tilapia anatomic landmarks morphology variation aquaculture
spellingShingle	tilapia anatomic landmarks morphology variation aquaculture Montoya-López,Andrés Moreno-Arias,Cintia Tarazona-Morales,Ariel Olivera-Angel,Martha Betancur,James Body shape variation between farms of tilapia (Oreochromis sp.) in Colombian Andes using landmark-based geometric morphometrics
description	ABSTRACT Tilapia is the most economically important fish in the aquaculture of different countries from the Americas. This species exhibits morphological plasticity under different conditions. In this study, we used landmark-based geometric morphometric to describe the shape variation of two red and one Nile tilapia farmed populations in Colombian Andes. We recorded significant morphological differences between all studied farms (P < 0.001, in the multivariate analysis of variance). In this way, individuals from the Nile tilapia farms were more elongated and had a more ventral position of the posterior extreme of the orbit and the insertion of pectoral fin than red tilapias. Moreover, the Nile group showed a shorter space between the mouth profile and the posterior extreme of the orbit, compared to red groups. On the other hand, individuals from farm red 2 were deep bodied and had a smaller head compared to tilapias from farm red 1. Our results provide evidence that tilapias from different farms in Colombian Andes display differences in body shape, and can be applied to selective breeding programs after establishing the contribution of genetic and environmental effects on tilapia shape as well as the preferences of consumers for the body shape of the species.
author	Montoya-López,Andrés Moreno-Arias,Cintia Tarazona-Morales,Ariel Olivera-Angel,Martha Betancur,James
author_facet	Montoya-López,Andrés Moreno-Arias,Cintia Tarazona-Morales,Ariel Olivera-Angel,Martha Betancur,James
author_sort	Montoya-López,Andrés
title	Body shape variation between farms of tilapia (Oreochromis sp.) in Colombian Andes using landmark-based geometric morphometrics
title_short	Body shape variation between farms of tilapia (Oreochromis sp.) in Colombian Andes using landmark-based geometric morphometrics
title_full	Body shape variation between farms of tilapia (Oreochromis sp.) in Colombian Andes using landmark-based geometric morphometrics
title_fullStr	Body shape variation between farms of tilapia (Oreochromis sp.) in Colombian Andes using landmark-based geometric morphometrics
title_full_unstemmed	Body shape variation between farms of tilapia (Oreochromis sp.) in Colombian Andes using landmark-based geometric morphometrics
title_sort	body shape variation between farms of tilapia (oreochromis sp.) in colombian andes using landmark-based geometric morphometrics
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000100194
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_version_	1714205217008910336

Body shape variation between farms of tilapia (Oreochromis sp.) in Colombian Andes using landmark-based geometric morphometrics

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