Morphological and molecular differentiation of wild and farmed gilthead sea bream Sparus aurata: implications for management

A combination of molecular and morphological characteristics was used to investigate populations of wild and farmed gilthead sea bream Sparus aurata from the largest Croatian shellfish production area, Mali Ston Bay. Identification of farmed escapees was performed in the wild in order to evaluate an...

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Autores principales:	T Šegvić-Bubić, I Talijančić, L Grubišić, D Izquierdo-Gomez, I Katavić
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2014
Materias:	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/9a2d031259874317920ff1809927a102
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spelling	oai:doaj.org-article:9a2d031259874317920ff1809927a1022021-11-16T10:29:55ZMorphological and molecular differentiation of wild and farmed gilthead sea bream Sparus aurata: implications for management1869-215X1869-753410.3354/aei00111https://doaj.org/article/9a2d031259874317920ff1809927a1022014-11-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v6/n1/p43-54/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534A combination of molecular and morphological characteristics was used to investigate populations of wild and farmed gilthead sea bream Sparus aurata from the largest Croatian shellfish production area, Mali Ston Bay. Identification of farmed escapees was performed in the wild in order to evaluate and compare the detection sensitivity of molecular and morphological tools. Using a traditional set of measurements and a truss network system, morphometric trait analysis of gilthead sea bream showed clear body shape differences between individuals from the wild and farmed populations. Microsatellite markers only revealed weak neutral genetic differentiation between farmed and wild samples from Mali Ston Bay (Wright’s FST = 0.019, p > 0.05; Jost’s DEST = 0.022), despite the fact that the farmed gilthead sea bream were of Atlantic origin. Using assignment tests, morphological (16%) and molecular (25%) analysis identified farmed escapees in the samples of wild gilthead sea bream in the vicinity of aquaculture sites. Morphological data showed good potential for distinguishing recent escapees in wild populations, since these characteristics are affected by the environment. This study demonstrates the presence of escapees in the local wild population in this region, and suggests the potential for genetic interaction.T Šegvić-BubićI TalijančićL GrubišićD Izquierdo-GomezI KatavićInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 6, Iss 1, Pp 43-54 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
spellingShingle	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 T Šegvić-Bubić I Talijančić L Grubišić D Izquierdo-Gomez I Katavić Morphological and molecular differentiation of wild and farmed gilthead sea bream Sparus aurata: implications for management
description	A combination of molecular and morphological characteristics was used to investigate populations of wild and farmed gilthead sea bream Sparus aurata from the largest Croatian shellfish production area, Mali Ston Bay. Identification of farmed escapees was performed in the wild in order to evaluate and compare the detection sensitivity of molecular and morphological tools. Using a traditional set of measurements and a truss network system, morphometric trait analysis of gilthead sea bream showed clear body shape differences between individuals from the wild and farmed populations. Microsatellite markers only revealed weak neutral genetic differentiation between farmed and wild samples from Mali Ston Bay (Wright’s FST = 0.019, p > 0.05; Jost’s DEST = 0.022), despite the fact that the farmed gilthead sea bream were of Atlantic origin. Using assignment tests, morphological (16%) and molecular (25%) analysis identified farmed escapees in the samples of wild gilthead sea bream in the vicinity of aquaculture sites. Morphological data showed good potential for distinguishing recent escapees in wild populations, since these characteristics are affected by the environment. This study demonstrates the presence of escapees in the local wild population in this region, and suggests the potential for genetic interaction.
format	article
author	T Šegvić-Bubić I Talijančić L Grubišić D Izquierdo-Gomez I Katavić
author_facet	T Šegvić-Bubić I Talijančić L Grubišić D Izquierdo-Gomez I Katavić
author_sort	T Šegvić-Bubić
title	Morphological and molecular differentiation of wild and farmed gilthead sea bream Sparus aurata: implications for management
title_short	Morphological and molecular differentiation of wild and farmed gilthead sea bream Sparus aurata: implications for management
title_full	Morphological and molecular differentiation of wild and farmed gilthead sea bream Sparus aurata: implications for management
title_fullStr	Morphological and molecular differentiation of wild and farmed gilthead sea bream Sparus aurata: implications for management
title_full_unstemmed	Morphological and molecular differentiation of wild and farmed gilthead sea bream Sparus aurata: implications for management
title_sort	morphological and molecular differentiation of wild and farmed gilthead sea bream sparus aurata: implications for management
publisher	Inter-Research
publishDate	2014
url	https://doaj.org/article/9a2d031259874317920ff1809927a102
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Morphological and molecular differentiation of wild and farmed gilthead sea bream Sparus aurata: implications for management

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