Genetic differentiation among Atlantic island populations of the brown spiny lobster Panulirus echinatus (Decapoda: Palinuridae)
Declines in Panulirus echinatus Smith, 1869 populations along their wide distribution in the Atlantic Ocean have spurred efforts to improve their fisheries management and conservation. In this study, the genetic structure of these populations is reported for the first time. In a survey of 18 species...
Published in: | Aquatic Conservation: Marine and Freshwater Ecosystems |
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Format: | Article in Journal/Newspaper |
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John Wiley & Sons
2020
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Online Access: | http://hdl.handle.net/10261/237676 https://doi.org/10.1002/aqc.3297 https://doi.org/10.13039/501100002322 https://doi.org/10.13039/501100003329 |
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ftcsic:oai:digital.csic.es:10261/237676 2024-02-11T10:06:54+01:00 Genetic differentiation among Atlantic island populations of the brown spiny lobster Panulirus echinatus (Decapoda: Palinuridae) Gaeta, Juliana Acevedo, Iván López-Márquez, Violeta Freitas, Rui Cruz, Raúl Maggioni, Rodrigo Herrera, Rogelio Machordom, Annie Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil) Ministerio de Agricultura, Pesca y Alimentación (España) Ministerio de Economía y Competitividad (España) 2020-05 http://hdl.handle.net/10261/237676 https://doi.org/10.1002/aqc.3297 https://doi.org/10.13039/501100002322 https://doi.org/10.13039/501100003329 unknown John Wiley & Sons #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2014-57949-R http://dx.doi.org/10.1002/aqc.3297 Sí doi:10.1002/aqc.3297 issn: 1099-0755 Aquatic Conservation: Marine and Freshwater Ecosystems 30(5): 868-881 (2020) http://hdl.handle.net/10261/237676 http://dx.doi.org/10.13039/501100002322 http://dx.doi.org/10.13039/501100003329 none Connectivity Conservation Equatorial barrier Gene flow Spiny lobster artículo http://purl.org/coar/resource_type/c_6501 2020 ftcsic https://doi.org/10.1002/aqc.329710.13039/50110000232210.13039/501100003329 2024-01-16T11:07:00Z Declines in Panulirus echinatus Smith, 1869 populations along their wide distribution in the Atlantic Ocean have spurred efforts to improve their fisheries management and conservation. In this study, the genetic structure of these populations is reported for the first time. In a survey of 18 species-specific polymorphic microsatellite markers, 152 individuals were genotyped from five Atlantic oceanic islands, covering most of the insular distribution range of the species. The analyses revealed that P. echinatus is genetically partitioned into two stocks in the Atlantic Ocean. A highly significant genetic structure was observed between north-east and south-west Atlantic populations based on fixation index, discriminant analysis of principal components, and structure and barrier analysis. We suggest that the Equatorial Circulation System represents a biophysical barrier that effectively limits migration among Atlantic subtropical gyre systems, as has been described for other species. Other physical and ecological barriers, such as the Mid-Atlantic Ridge itself, the distance between the eastern and western sides of the Atlantic (Mid-Atlantic Barrier) and water mass differences, as well as other biological aspects, may also influence larval dispersal and modulate the insular distribution of this species. The results show the existence of two distinct genetic stocks of P. echinatus and have implications for fisheries management in the Atlantic Ocean, including their independent management according to their individual status. The Cabo Verde and the Canarian populations (north-east Atlantic) showed the lowest level of genetic variability in comparison with the south-western populations. A combination of factors that have occurred or are occurring in the Canary Islands, such as overfishing and volcanic eruptions, is likely to explain the reduced abundance of this lobster species in the area. This study forms part of the doctoral thesis of the first author JCG, who was supported by a grant from Coordenaçao de ... Article in Journal/Newspaper North East Atlantic Digital.CSIC (Spanish National Research Council) Mid-Atlantic Ridge Aquatic Conservation: Marine and Freshwater Ecosystems 30 5 868 881 |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
Connectivity Conservation Equatorial barrier Gene flow Spiny lobster |
spellingShingle |
Connectivity Conservation Equatorial barrier Gene flow Spiny lobster Gaeta, Juliana Acevedo, Iván López-Márquez, Violeta Freitas, Rui Cruz, Raúl Maggioni, Rodrigo Herrera, Rogelio Machordom, Annie Genetic differentiation among Atlantic island populations of the brown spiny lobster Panulirus echinatus (Decapoda: Palinuridae) |
topic_facet |
Connectivity Conservation Equatorial barrier Gene flow Spiny lobster |
description |
Declines in Panulirus echinatus Smith, 1869 populations along their wide distribution in the Atlantic Ocean have spurred efforts to improve their fisheries management and conservation. In this study, the genetic structure of these populations is reported for the first time. In a survey of 18 species-specific polymorphic microsatellite markers, 152 individuals were genotyped from five Atlantic oceanic islands, covering most of the insular distribution range of the species. The analyses revealed that P. echinatus is genetically partitioned into two stocks in the Atlantic Ocean. A highly significant genetic structure was observed between north-east and south-west Atlantic populations based on fixation index, discriminant analysis of principal components, and structure and barrier analysis. We suggest that the Equatorial Circulation System represents a biophysical barrier that effectively limits migration among Atlantic subtropical gyre systems, as has been described for other species. Other physical and ecological barriers, such as the Mid-Atlantic Ridge itself, the distance between the eastern and western sides of the Atlantic (Mid-Atlantic Barrier) and water mass differences, as well as other biological aspects, may also influence larval dispersal and modulate the insular distribution of this species. The results show the existence of two distinct genetic stocks of P. echinatus and have implications for fisheries management in the Atlantic Ocean, including their independent management according to their individual status. The Cabo Verde and the Canarian populations (north-east Atlantic) showed the lowest level of genetic variability in comparison with the south-western populations. A combination of factors that have occurred or are occurring in the Canary Islands, such as overfishing and volcanic eruptions, is likely to explain the reduced abundance of this lobster species in the area. This study forms part of the doctoral thesis of the first author JCG, who was supported by a grant from Coordenaçao de ... |
author2 |
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil) Ministerio de Agricultura, Pesca y Alimentación (España) Ministerio de Economía y Competitividad (España) |
format |
Article in Journal/Newspaper |
author |
Gaeta, Juliana Acevedo, Iván López-Márquez, Violeta Freitas, Rui Cruz, Raúl Maggioni, Rodrigo Herrera, Rogelio Machordom, Annie |
author_facet |
Gaeta, Juliana Acevedo, Iván López-Márquez, Violeta Freitas, Rui Cruz, Raúl Maggioni, Rodrigo Herrera, Rogelio Machordom, Annie |
author_sort |
Gaeta, Juliana |
title |
Genetic differentiation among Atlantic island populations of the brown spiny lobster Panulirus echinatus (Decapoda: Palinuridae) |
title_short |
Genetic differentiation among Atlantic island populations of the brown spiny lobster Panulirus echinatus (Decapoda: Palinuridae) |
title_full |
Genetic differentiation among Atlantic island populations of the brown spiny lobster Panulirus echinatus (Decapoda: Palinuridae) |
title_fullStr |
Genetic differentiation among Atlantic island populations of the brown spiny lobster Panulirus echinatus (Decapoda: Palinuridae) |
title_full_unstemmed |
Genetic differentiation among Atlantic island populations of the brown spiny lobster Panulirus echinatus (Decapoda: Palinuridae) |
title_sort |
genetic differentiation among atlantic island populations of the brown spiny lobster panulirus echinatus (decapoda: palinuridae) |
publisher |
John Wiley & Sons |
publishDate |
2020 |
url |
http://hdl.handle.net/10261/237676 https://doi.org/10.1002/aqc.3297 https://doi.org/10.13039/501100002322 https://doi.org/10.13039/501100003329 |
geographic |
Mid-Atlantic Ridge |
geographic_facet |
Mid-Atlantic Ridge |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2014-57949-R http://dx.doi.org/10.1002/aqc.3297 Sí doi:10.1002/aqc.3297 issn: 1099-0755 Aquatic Conservation: Marine and Freshwater Ecosystems 30(5): 868-881 (2020) http://hdl.handle.net/10261/237676 http://dx.doi.org/10.13039/501100002322 http://dx.doi.org/10.13039/501100003329 |
op_rights |
none |
op_doi |
https://doi.org/10.1002/aqc.329710.13039/50110000232210.13039/501100003329 |
container_title |
Aquatic Conservation: Marine and Freshwater Ecosystems |
container_volume |
30 |
container_issue |
5 |
container_start_page |
868 |
op_container_end_page |
881 |
_version_ |
1790604931068067840 |