Insights from genetic and demographic connectivity for the management of rays and skates
Studying demographic and genetic connectivity can help assess marine metapopulation structure. Rays and skates have no larval phase; hence, population connectivity can only result from active movement of individuals. Using thornback ray (Raja clavata) in European waters as a case study, demographic...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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crcansciencepubl:10.1139/cjfas-2017-0291 2024-03-03T08:47:18+00:00 Insights from genetic and demographic connectivity for the management of rays and skates Marandel, Florianne Lorance, Pascal Andrello, Marco Charrier, Grégory Le Cam, Sabrina Lehuta, Sigrid Trenkel, Verena M. 2018 http://dx.doi.org/10.1139/cjfas-2017-0291 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2017-0291 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2017-0291 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 75, issue 8, page 1291-1302 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2018 crcansciencepubl https://doi.org/10.1139/cjfas-2017-0291 2024-02-07T10:53:33Z Studying demographic and genetic connectivity can help assess marine metapopulation structure. Rays and skates have no larval phase; hence, population connectivity can only result from active movement of individuals. Using thornback ray (Raja clavata) in European waters as a case study, demographic and genetic connectivity were studied for 11 putative populations with unequal population abundances and two hypotheses of dispersal rates. Genetic simulation results highlighted three large metapopulations: in the Mediterranean, around the Azores, and on the Northeast Atlantic shelf. Demographic results highlighted a finer population structure indicating that several pairs of putative populations might be demographically linked. Results were highly sensitive to dispersal assumptions and relative population abundances, which provided insights into the potential magnitude of genetic and demographic connectivity differences. Accounting for demographic connectivity appears to be crucial for managing and conserving rays and skates, while genetic connectivity provides a longer-term perspective and less subtle spatial structures. Moreover, accounting for heterogeneity in population abundances is a key factor for determining or interpreting metapopulation connectivity. Article in Journal/Newspaper Northeast Atlantic Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 75 8 1291 1302 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Marandel, Florianne Lorance, Pascal Andrello, Marco Charrier, Grégory Le Cam, Sabrina Lehuta, Sigrid Trenkel, Verena M. Insights from genetic and demographic connectivity for the management of rays and skates |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Studying demographic and genetic connectivity can help assess marine metapopulation structure. Rays and skates have no larval phase; hence, population connectivity can only result from active movement of individuals. Using thornback ray (Raja clavata) in European waters as a case study, demographic and genetic connectivity were studied for 11 putative populations with unequal population abundances and two hypotheses of dispersal rates. Genetic simulation results highlighted three large metapopulations: in the Mediterranean, around the Azores, and on the Northeast Atlantic shelf. Demographic results highlighted a finer population structure indicating that several pairs of putative populations might be demographically linked. Results were highly sensitive to dispersal assumptions and relative population abundances, which provided insights into the potential magnitude of genetic and demographic connectivity differences. Accounting for demographic connectivity appears to be crucial for managing and conserving rays and skates, while genetic connectivity provides a longer-term perspective and less subtle spatial structures. Moreover, accounting for heterogeneity in population abundances is a key factor for determining or interpreting metapopulation connectivity. |
format |
Article in Journal/Newspaper |
author |
Marandel, Florianne Lorance, Pascal Andrello, Marco Charrier, Grégory Le Cam, Sabrina Lehuta, Sigrid Trenkel, Verena M. |
author_facet |
Marandel, Florianne Lorance, Pascal Andrello, Marco Charrier, Grégory Le Cam, Sabrina Lehuta, Sigrid Trenkel, Verena M. |
author_sort |
Marandel, Florianne |
title |
Insights from genetic and demographic connectivity for the management of rays and skates |
title_short |
Insights from genetic and demographic connectivity for the management of rays and skates |
title_full |
Insights from genetic and demographic connectivity for the management of rays and skates |
title_fullStr |
Insights from genetic and demographic connectivity for the management of rays and skates |
title_full_unstemmed |
Insights from genetic and demographic connectivity for the management of rays and skates |
title_sort |
insights from genetic and demographic connectivity for the management of rays and skates |
publisher |
Canadian Science Publishing |
publishDate |
2018 |
url |
http://dx.doi.org/10.1139/cjfas-2017-0291 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2017-0291 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2017-0291 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 75, issue 8, page 1291-1302 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2017-0291 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
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75 |
container_issue |
8 |
container_start_page |
1291 |
op_container_end_page |
1302 |
_version_ |
1792503474974359552 |