Population genetic structure in the North Atlantic Greenland halibut ( Reinhardtius hippoglossoides ): influenced by oceanic current systems?
We report statistically significant genetic structure among samples of Greenland halibut (Reinhardtius hippoglossoides), rejecting the null hypothesis of panmixia in the North Atlantic. The species appears instead to be subdivided into partially isolated populations, with some evidence for isolation...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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2007
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Online Access: | http://dx.doi.org/10.1139/f07-070 http://www.nrcresearchpress.com/doi/pdf/10.1139/f07-070 |
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crcansciencepubl:10.1139/f07-070 2023-12-17T10:30:48+01:00 Population genetic structure in the North Atlantic Greenland halibut ( Reinhardtius hippoglossoides ): influenced by oceanic current systems? Knutsen, Halvor Jorde, Per Erik Albert, Ole Thomas Hoelzel, A Rus Stenseth, Nils Chr. 2007 http://dx.doi.org/10.1139/f07-070 http://www.nrcresearchpress.com/doi/pdf/10.1139/f07-070 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 64, issue 6, page 857-866 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2007 crcansciencepubl https://doi.org/10.1139/f07-070 2023-11-19T13:38:42Z We report statistically significant genetic structure among samples of Greenland halibut (Reinhardtius hippoglossoides), rejecting the null hypothesis of panmixia in the North Atlantic. The species appears instead to be subdivided into partially isolated populations, with some evidence for isolation by distance. However, there is a dichotomy between transatlantic sample comparisons and those within a regional current system, even when geographic distance is similar. Calculating geographic distance along the flow of ocean currents gave a more linear correlation with genetic differentiation than straight-line geographic distances, suggesting that gene flow follows ocean currents. We hypothesize that gene flow is mediated by drift of eggs and larvae with ocean currents, a hypothesis that is consistent with the extended pelagic phase of Greenland halibut larvae. This implies an important role for ocean currents in shaping the genetic structure of this and potentially other deep-sea species. Article in Journal/Newspaper Greenland North Atlantic Canadian Science Publishing (via Crossref) Greenland Canadian Journal of Fisheries and Aquatic Sciences 64 6 857 866 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Knutsen, Halvor Jorde, Per Erik Albert, Ole Thomas Hoelzel, A Rus Stenseth, Nils Chr. Population genetic structure in the North Atlantic Greenland halibut ( Reinhardtius hippoglossoides ): influenced by oceanic current systems? |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
We report statistically significant genetic structure among samples of Greenland halibut (Reinhardtius hippoglossoides), rejecting the null hypothesis of panmixia in the North Atlantic. The species appears instead to be subdivided into partially isolated populations, with some evidence for isolation by distance. However, there is a dichotomy between transatlantic sample comparisons and those within a regional current system, even when geographic distance is similar. Calculating geographic distance along the flow of ocean currents gave a more linear correlation with genetic differentiation than straight-line geographic distances, suggesting that gene flow follows ocean currents. We hypothesize that gene flow is mediated by drift of eggs and larvae with ocean currents, a hypothesis that is consistent with the extended pelagic phase of Greenland halibut larvae. This implies an important role for ocean currents in shaping the genetic structure of this and potentially other deep-sea species. |
format |
Article in Journal/Newspaper |
author |
Knutsen, Halvor Jorde, Per Erik Albert, Ole Thomas Hoelzel, A Rus Stenseth, Nils Chr. |
author_facet |
Knutsen, Halvor Jorde, Per Erik Albert, Ole Thomas Hoelzel, A Rus Stenseth, Nils Chr. |
author_sort |
Knutsen, Halvor |
title |
Population genetic structure in the North Atlantic Greenland halibut ( Reinhardtius hippoglossoides ): influenced by oceanic current systems? |
title_short |
Population genetic structure in the North Atlantic Greenland halibut ( Reinhardtius hippoglossoides ): influenced by oceanic current systems? |
title_full |
Population genetic structure in the North Atlantic Greenland halibut ( Reinhardtius hippoglossoides ): influenced by oceanic current systems? |
title_fullStr |
Population genetic structure in the North Atlantic Greenland halibut ( Reinhardtius hippoglossoides ): influenced by oceanic current systems? |
title_full_unstemmed |
Population genetic structure in the North Atlantic Greenland halibut ( Reinhardtius hippoglossoides ): influenced by oceanic current systems? |
title_sort |
population genetic structure in the north atlantic greenland halibut ( reinhardtius hippoglossoides ): influenced by oceanic current systems? |
publisher |
Canadian Science Publishing |
publishDate |
2007 |
url |
http://dx.doi.org/10.1139/f07-070 http://www.nrcresearchpress.com/doi/pdf/10.1139/f07-070 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 64, issue 6, page 857-866 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f07-070 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
64 |
container_issue |
6 |
container_start_page |
857 |
op_container_end_page |
866 |
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1785583872748027904 |