Gene flow in the Antarctic bivalve Aequiyoldia eightsii (Jay, 1839) suggests a role for the Antarctic Peninsula Coastal Current in larval dispersal
The Antarctic Circumpolar Current (ACC) dominates the open-ocean circulation of the Southern Ocean, and both isolates and connects the Southern Ocean biodiversity. However, the impact on biological processes of other Southern Ocean currents is less clear. Adjacent to the West Antarctic Peninsula (WA...
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ftpubmed:oai:pubmedcentral.nih.gov:7540763 2023-05-15T13:55:57+02:00 Gene flow in the Antarctic bivalve Aequiyoldia eightsii (Jay, 1839) suggests a role for the Antarctic Peninsula Coastal Current in larval dispersal Muñoz-Ramírez, Carlos P. Barnes, David K. A. Cárdenas, Leyla Meredith, Michael P. Morley, Simon A. Roman-Gonzalez, Alejandro Sands, Chester J. Scourse, James Brante, Antonio 2020-09-16 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7540763/ http://www.ncbi.nlm.nih.gov/pubmed/33047024 https://doi.org/10.1098/rsos.200603 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7540763/ http://www.ncbi.nlm.nih.gov/pubmed/33047024 http://dx.doi.org/10.1098/rsos.200603 © 2020 The Authors. http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/http://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. CC-BY R Soc Open Sci Organismal and Evolutionary Biology Text 2020 ftpubmed https://doi.org/10.1098/rsos.200603 2020-10-18T00:29:18Z The Antarctic Circumpolar Current (ACC) dominates the open-ocean circulation of the Southern Ocean, and both isolates and connects the Southern Ocean biodiversity. However, the impact on biological processes of other Southern Ocean currents is less clear. Adjacent to the West Antarctic Peninsula (WAP), the ACC flows offshore in a northeastward direction, whereas the Antarctic Peninsula Coastal Current (APCC) follows a complex circulation pattern along the coast, with topographically influenced deflections depending on the area. Using genomic data, we estimated genetic structure and migration rates between populations of the benthic bivalve Aequiyoldia eightsii from the shallows of southern South America and the WAP to test the role of the ACC and the APCC in its dispersal. We found strong genetic structure across the ACC (between southern South America and Antarctica) and moderate structure between populations of the WAP. Migration rates along the WAP were consistent with the APCC being important for species dispersal. Along with supporting current knowledge about ocean circulation models at the WAP, migration from the tip of the Antarctic Peninsula to the Bellingshausen Sea highlights the complexities of Southern Ocean circulation. This study provides novel biological evidence of a role of the APCC as a driver of species dispersal and highlights the power of genomic data for aiding in the understanding of the influence of complex oceanographic processes in shaping the population structure of marine species. Text Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea Southern Ocean PubMed Central (PMC) Antarctic Antarctic Peninsula Bellingshausen Sea Southern Ocean The Antarctic Royal Society Open Science 7 9 200603 |
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English |
topic |
Organismal and Evolutionary Biology |
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Organismal and Evolutionary Biology Muñoz-Ramírez, Carlos P. Barnes, David K. A. Cárdenas, Leyla Meredith, Michael P. Morley, Simon A. Roman-Gonzalez, Alejandro Sands, Chester J. Scourse, James Brante, Antonio Gene flow in the Antarctic bivalve Aequiyoldia eightsii (Jay, 1839) suggests a role for the Antarctic Peninsula Coastal Current in larval dispersal |
topic_facet |
Organismal and Evolutionary Biology |
description |
The Antarctic Circumpolar Current (ACC) dominates the open-ocean circulation of the Southern Ocean, and both isolates and connects the Southern Ocean biodiversity. However, the impact on biological processes of other Southern Ocean currents is less clear. Adjacent to the West Antarctic Peninsula (WAP), the ACC flows offshore in a northeastward direction, whereas the Antarctic Peninsula Coastal Current (APCC) follows a complex circulation pattern along the coast, with topographically influenced deflections depending on the area. Using genomic data, we estimated genetic structure and migration rates between populations of the benthic bivalve Aequiyoldia eightsii from the shallows of southern South America and the WAP to test the role of the ACC and the APCC in its dispersal. We found strong genetic structure across the ACC (between southern South America and Antarctica) and moderate structure between populations of the WAP. Migration rates along the WAP were consistent with the APCC being important for species dispersal. Along with supporting current knowledge about ocean circulation models at the WAP, migration from the tip of the Antarctic Peninsula to the Bellingshausen Sea highlights the complexities of Southern Ocean circulation. This study provides novel biological evidence of a role of the APCC as a driver of species dispersal and highlights the power of genomic data for aiding in the understanding of the influence of complex oceanographic processes in shaping the population structure of marine species. |
format |
Text |
author |
Muñoz-Ramírez, Carlos P. Barnes, David K. A. Cárdenas, Leyla Meredith, Michael P. Morley, Simon A. Roman-Gonzalez, Alejandro Sands, Chester J. Scourse, James Brante, Antonio |
author_facet |
Muñoz-Ramírez, Carlos P. Barnes, David K. A. Cárdenas, Leyla Meredith, Michael P. Morley, Simon A. Roman-Gonzalez, Alejandro Sands, Chester J. Scourse, James Brante, Antonio |
author_sort |
Muñoz-Ramírez, Carlos P. |
title |
Gene flow in the Antarctic bivalve Aequiyoldia eightsii (Jay, 1839) suggests a role for the Antarctic Peninsula Coastal Current in larval dispersal |
title_short |
Gene flow in the Antarctic bivalve Aequiyoldia eightsii (Jay, 1839) suggests a role for the Antarctic Peninsula Coastal Current in larval dispersal |
title_full |
Gene flow in the Antarctic bivalve Aequiyoldia eightsii (Jay, 1839) suggests a role for the Antarctic Peninsula Coastal Current in larval dispersal |
title_fullStr |
Gene flow in the Antarctic bivalve Aequiyoldia eightsii (Jay, 1839) suggests a role for the Antarctic Peninsula Coastal Current in larval dispersal |
title_full_unstemmed |
Gene flow in the Antarctic bivalve Aequiyoldia eightsii (Jay, 1839) suggests a role for the Antarctic Peninsula Coastal Current in larval dispersal |
title_sort |
gene flow in the antarctic bivalve aequiyoldia eightsii (jay, 1839) suggests a role for the antarctic peninsula coastal current in larval dispersal |
publisher |
The Royal Society |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7540763/ http://www.ncbi.nlm.nih.gov/pubmed/33047024 https://doi.org/10.1098/rsos.200603 |
geographic |
Antarctic Antarctic Peninsula Bellingshausen Sea Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Bellingshausen Sea Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea Southern Ocean |
op_source |
R Soc Open Sci |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7540763/ http://www.ncbi.nlm.nih.gov/pubmed/33047024 http://dx.doi.org/10.1098/rsos.200603 |
op_rights |
© 2020 The Authors. http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/http://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rsos.200603 |
container_title |
Royal Society Open Science |
container_volume |
7 |
container_issue |
9 |
container_start_page |
200603 |
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1766262963132432384 |