Larval Retention and Homing Behaviour Shape the Genetic Structure of the Bullet Tuna (Auxis rochei) in the Mediterranean Sea
Background: The bullet tuna (Auxis rochei) is an epipelagic fish with a worldwide distribution that is highly targeted by fisheries. Genetic diversity and population genetics are good indicators of population structure and thus, essential tools for fisheries management. Knowing which factors (biotic...
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Centro Oceanográfico de Málaga
2022
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Online Access: | http://hdl.handle.net/10508/16436 https://doi.org/10.3390/fishes7050300 |
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ftieo:oai:repositorio.ieo.es:10508/16436 2023-05-15T17:34:35+02:00 Larval Retention and Homing Behaviour Shape the Genetic Structure of the Bullet Tuna (Auxis rochei) in the Mediterranean Sea Ollé-Vilanova, Judith Pérez-Vielsa, Nuria Araguas, Rosa María Saber, S. (Sámar) Macías-López, A.D. (Ángel David) Viñas, Jordi Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic 2022-10-21 http://hdl.handle.net/10508/16436 https://doi.org/10.3390/fishes7050300 eng eng Centro Oceanográfico de Málaga 2410-3888 http://hdl.handle.net/10508/16436 https://doi.org/10.3390/fishes7050300 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ embargoed access CC-BY-NC-ND Scombridae Mediterranean population genetics fisheries life-history traits fish homing behaviour maps shape access research article VoR 2022 ftieo https://doi.org/10.3390/fishes7050300 2022-11-09T00:47:13Z Background: The bullet tuna (Auxis rochei) is an epipelagic fish with a worldwide distribution that is highly targeted by fisheries. Genetic diversity and population genetics are good indicators of population structure and thus, essential tools for fisheries management. Knowing which factors (biotic and abiotic) might be shaping such structure is crucial for management plans. In the present study, we assessed the population structure of the bullet tuna in the western and central Mediterranean Sea. Methods: We used two types of genetic data: the mitochondrial DNA control region and seven microsatellite loci. The analysis of 431 sequences with a length of 386 bp from the mtDNA CR and the results from 276 individuals were genotyped by seven microsatellite loci. Results: Both types of markers coincided in showing significant genetic differences between an Iberian Peninsula–Strait of Gibraltar stock in comparison with a North African stock. Conclusions: We argue that this differentiation pattern is likely caused by reproductive strategies such as coastal spawning, larval retention, and natal homing behavior. These results should endorse the implementation of management plans for a resource that currently is not being managed. Thus, to ensure sustainability, these new policies should consider the presence of at least two genetically identified stocks. Article in Journal/Newspaper North Atlantic Instituto Español de Oceanografía: e-IEO Fishes 7 5 300 |
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Open Polar |
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Instituto Español de Oceanografía: e-IEO |
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ftieo |
language |
English |
topic |
Scombridae Mediterranean population genetics fisheries life-history traits fish homing behaviour maps shape access |
spellingShingle |
Scombridae Mediterranean population genetics fisheries life-history traits fish homing behaviour maps shape access Ollé-Vilanova, Judith Pérez-Vielsa, Nuria Araguas, Rosa María Saber, S. (Sámar) Macías-López, A.D. (Ángel David) Viñas, Jordi Larval Retention and Homing Behaviour Shape the Genetic Structure of the Bullet Tuna (Auxis rochei) in the Mediterranean Sea |
topic_facet |
Scombridae Mediterranean population genetics fisheries life-history traits fish homing behaviour maps shape access |
description |
Background: The bullet tuna (Auxis rochei) is an epipelagic fish with a worldwide distribution that is highly targeted by fisheries. Genetic diversity and population genetics are good indicators of population structure and thus, essential tools for fisheries management. Knowing which factors (biotic and abiotic) might be shaping such structure is crucial for management plans. In the present study, we assessed the population structure of the bullet tuna in the western and central Mediterranean Sea. Methods: We used two types of genetic data: the mitochondrial DNA control region and seven microsatellite loci. The analysis of 431 sequences with a length of 386 bp from the mtDNA CR and the results from 276 individuals were genotyped by seven microsatellite loci. Results: Both types of markers coincided in showing significant genetic differences between an Iberian Peninsula–Strait of Gibraltar stock in comparison with a North African stock. Conclusions: We argue that this differentiation pattern is likely caused by reproductive strategies such as coastal spawning, larval retention, and natal homing behavior. These results should endorse the implementation of management plans for a resource that currently is not being managed. Thus, to ensure sustainability, these new policies should consider the presence of at least two genetically identified stocks. |
format |
Article in Journal/Newspaper |
author |
Ollé-Vilanova, Judith Pérez-Vielsa, Nuria Araguas, Rosa María Saber, S. (Sámar) Macías-López, A.D. (Ángel David) Viñas, Jordi |
author_facet |
Ollé-Vilanova, Judith Pérez-Vielsa, Nuria Araguas, Rosa María Saber, S. (Sámar) Macías-López, A.D. (Ángel David) Viñas, Jordi |
author_sort |
Ollé-Vilanova, Judith |
title |
Larval Retention and Homing Behaviour Shape the Genetic Structure of the Bullet Tuna (Auxis rochei) in the Mediterranean Sea |
title_short |
Larval Retention and Homing Behaviour Shape the Genetic Structure of the Bullet Tuna (Auxis rochei) in the Mediterranean Sea |
title_full |
Larval Retention and Homing Behaviour Shape the Genetic Structure of the Bullet Tuna (Auxis rochei) in the Mediterranean Sea |
title_fullStr |
Larval Retention and Homing Behaviour Shape the Genetic Structure of the Bullet Tuna (Auxis rochei) in the Mediterranean Sea |
title_full_unstemmed |
Larval Retention and Homing Behaviour Shape the Genetic Structure of the Bullet Tuna (Auxis rochei) in the Mediterranean Sea |
title_sort |
larval retention and homing behaviour shape the genetic structure of the bullet tuna (auxis rochei) in the mediterranean sea |
publisher |
Centro Oceanográfico de Málaga |
publishDate |
2022 |
url |
http://hdl.handle.net/10508/16436 https://doi.org/10.3390/fishes7050300 |
op_coverage |
Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
2410-3888 http://hdl.handle.net/10508/16436 https://doi.org/10.3390/fishes7050300 |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ embargoed access |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.3390/fishes7050300 |
container_title |
Fishes |
container_volume |
7 |
container_issue |
5 |
container_start_page |
300 |
_version_ |
1766133476872945664 |