Spatial versus temporal structure:implications of inter-haul variation and relatedness in the North East Atlantic Spurdog Squalus acanthias
1. Micro-population processes, such as gene flow, operating within geographic regions are often poorly understood despite their potential to impact stock structure and sustainability. This is especially true for highly mobile species, such as elasmobranchs, where the potential for spatial overlap of...
Published in: | Aquatic Conservation: Marine and Freshwater Ecosystems |
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Language: | English |
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2018
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/spatial-versus-temporal-structure(affbc600-9f36-45f3-843f-ad8ff1f54694).html https://doi.org/10.1002/aqc.2922 https://research-repository.st-andrews.ac.uk/bitstream/10023/18236/1/Thorburn_2018_Spatial_versus_AC_MFE_AAM.pdf |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/affbc600-9f36-45f3-843f-ad8ff1f54694 2024-06-23T07:55:22+00:00 Spatial versus temporal structure:implications of inter-haul variation and relatedness in the North East Atlantic Spurdog Squalus acanthias Thorburn, James Jones, Rosie Neat, Francis Pinto, Cecilia Bendall, Victoria Hetherington, Stuart Bailey, David Mark Noble, Leslie Jones, Cath 2018-08-02 application/pdf https://research-portal.st-andrews.ac.uk/en/researchoutput/spatial-versus-temporal-structure(affbc600-9f36-45f3-843f-ad8ff1f54694).html https://doi.org/10.1002/aqc.2922 https://research-repository.st-andrews.ac.uk/bitstream/10023/18236/1/Thorburn_2018_Spatial_versus_AC_MFE_AAM.pdf eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/spatial-versus-temporal-structure(affbc600-9f36-45f3-843f-ad8ff1f54694).html info:eu-repo/semantics/openAccess Thorburn , J , Jones , R , Neat , F , Pinto , C , Bendall , V , Hetherington , S , Bailey , D M , Noble , L & Jones , C 2018 , ' Spatial versus temporal structure : implications of inter-haul variation and relatedness in the North East Atlantic Spurdog Squalus acanthias ' , Aquatic Conservation: Marine and Freshwater Ecosystems , vol. Early View . https://doi.org/10.1002/aqc.2922 Coastal Ocean Distribution Fish Fishing Elasmobranch management Genetic structure Relatedness Social interactions article 2018 ftunstandrewcris https://doi.org/10.1002/aqc.2922 2024-06-13T01:00:57Z 1. Micro-population processes, such as gene flow, operating within geographic regions are often poorly understood despite their potential to impact stock structure and sustainability. This is especially true for highly mobile species, such as elasmobranchs, where the potential for spatial overlap of regional populations is increased due to higher movement capabilities. A lack of information on these processes means management plans rarely consider spatio-temporal structure. 2. Spurdog ( Squalus acanthias ) are globally distributed throughout temperate regions yet there is an apparent lack of gene flow between ocean basins. In the North-east Atlantic, there is little work on gene flow within the region which is currently managed as a single stock that is estimated to be at 19% compared to 1905. Some evidence from this region suggests population processes which have the potential to cause structuring. 3. Population structure of NE Atlantic spurdog was investigated using an 828-bp fragment of the mitochondrial DNA control region and seven focal polymorphic microsatellite markers. Samples from 295 individuals from eight locations throughout UK waters were used in this study. 4. Overall, mitochondrial sequences suggested some regional differentiation. Genetic diversity was comparable with that reported in previous studies of spurdog. Haplotype diversity (0.782 - 1) is amongst the highest observed for an elasmobranch. Microsatellite markers suggested a high level of relatedness was responsible for regional population structuring. There was no apparent spatial structure after removal of ‘full sibling’ relationships. 5. Inter-haul variation from Celtic Sea samples is suggestive of sub-populations and aggregation events which may have important implications for fisheries conservation of this, and other, elasmobranch species. Article in Journal/Newspaper North East Atlantic Squalus acanthias University of St Andrews: Research Portal Aquatic Conservation: Marine and Freshwater Ecosystems 28 5 1167 1180 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Coastal Ocean Distribution Fish Fishing Elasmobranch management Genetic structure Relatedness Social interactions |
spellingShingle |
Coastal Ocean Distribution Fish Fishing Elasmobranch management Genetic structure Relatedness Social interactions Thorburn, James Jones, Rosie Neat, Francis Pinto, Cecilia Bendall, Victoria Hetherington, Stuart Bailey, David Mark Noble, Leslie Jones, Cath Spatial versus temporal structure:implications of inter-haul variation and relatedness in the North East Atlantic Spurdog Squalus acanthias |
topic_facet |
Coastal Ocean Distribution Fish Fishing Elasmobranch management Genetic structure Relatedness Social interactions |
description |
1. Micro-population processes, such as gene flow, operating within geographic regions are often poorly understood despite their potential to impact stock structure and sustainability. This is especially true for highly mobile species, such as elasmobranchs, where the potential for spatial overlap of regional populations is increased due to higher movement capabilities. A lack of information on these processes means management plans rarely consider spatio-temporal structure. 2. Spurdog ( Squalus acanthias ) are globally distributed throughout temperate regions yet there is an apparent lack of gene flow between ocean basins. In the North-east Atlantic, there is little work on gene flow within the region which is currently managed as a single stock that is estimated to be at 19% compared to 1905. Some evidence from this region suggests population processes which have the potential to cause structuring. 3. Population structure of NE Atlantic spurdog was investigated using an 828-bp fragment of the mitochondrial DNA control region and seven focal polymorphic microsatellite markers. Samples from 295 individuals from eight locations throughout UK waters were used in this study. 4. Overall, mitochondrial sequences suggested some regional differentiation. Genetic diversity was comparable with that reported in previous studies of spurdog. Haplotype diversity (0.782 - 1) is amongst the highest observed for an elasmobranch. Microsatellite markers suggested a high level of relatedness was responsible for regional population structuring. There was no apparent spatial structure after removal of ‘full sibling’ relationships. 5. Inter-haul variation from Celtic Sea samples is suggestive of sub-populations and aggregation events which may have important implications for fisheries conservation of this, and other, elasmobranch species. |
format |
Article in Journal/Newspaper |
author |
Thorburn, James Jones, Rosie Neat, Francis Pinto, Cecilia Bendall, Victoria Hetherington, Stuart Bailey, David Mark Noble, Leslie Jones, Cath |
author_facet |
Thorburn, James Jones, Rosie Neat, Francis Pinto, Cecilia Bendall, Victoria Hetherington, Stuart Bailey, David Mark Noble, Leslie Jones, Cath |
author_sort |
Thorburn, James |
title |
Spatial versus temporal structure:implications of inter-haul variation and relatedness in the North East Atlantic Spurdog Squalus acanthias |
title_short |
Spatial versus temporal structure:implications of inter-haul variation and relatedness in the North East Atlantic Spurdog Squalus acanthias |
title_full |
Spatial versus temporal structure:implications of inter-haul variation and relatedness in the North East Atlantic Spurdog Squalus acanthias |
title_fullStr |
Spatial versus temporal structure:implications of inter-haul variation and relatedness in the North East Atlantic Spurdog Squalus acanthias |
title_full_unstemmed |
Spatial versus temporal structure:implications of inter-haul variation and relatedness in the North East Atlantic Spurdog Squalus acanthias |
title_sort |
spatial versus temporal structure:implications of inter-haul variation and relatedness in the north east atlantic spurdog squalus acanthias |
publishDate |
2018 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/spatial-versus-temporal-structure(affbc600-9f36-45f3-843f-ad8ff1f54694).html https://doi.org/10.1002/aqc.2922 https://research-repository.st-andrews.ac.uk/bitstream/10023/18236/1/Thorburn_2018_Spatial_versus_AC_MFE_AAM.pdf |
genre |
North East Atlantic Squalus acanthias |
genre_facet |
North East Atlantic Squalus acanthias |
op_source |
Thorburn , J , Jones , R , Neat , F , Pinto , C , Bendall , V , Hetherington , S , Bailey , D M , Noble , L & Jones , C 2018 , ' Spatial versus temporal structure : implications of inter-haul variation and relatedness in the North East Atlantic Spurdog Squalus acanthias ' , Aquatic Conservation: Marine and Freshwater Ecosystems , vol. Early View . https://doi.org/10.1002/aqc.2922 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/spatial-versus-temporal-structure(affbc600-9f36-45f3-843f-ad8ff1f54694).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/aqc.2922 |
container_title |
Aquatic Conservation: Marine and Freshwater Ecosystems |
container_volume |
28 |
container_issue |
5 |
container_start_page |
1167 |
op_container_end_page |
1180 |
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1802647952475291648 |