Population structure discovered in juveniles of Greenland halibut (Reinhardtius hippoglossoides Walbaum, 1792)
Understanding the genetic differentiation among populations of most marine fish requires investigating the differences among spawning grounds. However, this can be challenging as spawning grounds for some species are not well known, or spawning fish are difficult to collect. An alternative is to col...
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Online Access: | https://hdl.handle.net/11250/3094470 https://doi.org/10.1093/icesjms/fsad011 |
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ftimr:oai:imr.brage.unit.no:11250/3094470 2023-11-05T03:40:47+01:00 Population structure discovered in juveniles of Greenland halibut (Reinhardtius hippoglossoides Walbaum, 1792) Gíslason, Davíð Estévez-Barcia, Daniel Sveinsson, Sæmundur Hansen, Agneta Roy, Denis Treble, Margaret Boje, Jesper Vihtakari, Mikko Elvarsson, Bjarki Þór Hedges, Kevin Hallfredsson, Elvar Halldor Johansen, Torild 2023 application/pdf https://hdl.handle.net/11250/3094470 https://doi.org/10.1093/icesjms/fsad011 eng eng Havforskningsinstituttet: 15179 ICES Journal of Marine Science. 2023, 80 (4), 889-896. urn:issn:1054-3139 https://hdl.handle.net/11250/3094470 https://doi.org/10.1093/icesjms/fsad011 cristin:2175018 889-896 80 ICES Journal of Marine Science 4 Peer reviewed Journal article 2023 ftimr https://doi.org/10.1093/icesjms/fsad011 2023-10-11T22:47:28Z Understanding the genetic differentiation among populations of most marine fish requires investigating the differences among spawning grounds. However, this can be challenging as spawning grounds for some species are not well known, or spawning fish are difficult to collect. An alternative is to collect juvenile fish in nursery habitats closely associated with potential spawning grounds. Greenland halibut is a deep-dwelling, commercially important species with at least two identified major offshore spawning grounds in the North Atlantic and weak genetic differentiation across the Atlantic. In this study, we sampled juveniles from three sites representing the Davis Strait spawning area in the northwest Atlantic and one site in the northeast Atlantic representing the primary spawning area along the western slope of the Barents Sea. We applied genotype by sequencing and discovered 90 genetic markers that could be used to assess genetic differentiation among the four sites. The northeast and northwest Atlantic showed major genetic differentiation, supporting the existence of the two primary spawning clusters. Additionally, we found genetic differentiation between the three northwest Atlantic samples implying the existence of more than one spawning area in the northwest. publishedVersion Article in Journal/Newspaper Barents Sea Davis Strait Greenland North Atlantic Northeast Atlantic Northwest Atlantic Institute for Marine Research: Brage IMR ICES Journal of Marine Science 80 4 889 896 |
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Institute for Marine Research: Brage IMR |
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English |
description |
Understanding the genetic differentiation among populations of most marine fish requires investigating the differences among spawning grounds. However, this can be challenging as spawning grounds for some species are not well known, or spawning fish are difficult to collect. An alternative is to collect juvenile fish in nursery habitats closely associated with potential spawning grounds. Greenland halibut is a deep-dwelling, commercially important species with at least two identified major offshore spawning grounds in the North Atlantic and weak genetic differentiation across the Atlantic. In this study, we sampled juveniles from three sites representing the Davis Strait spawning area in the northwest Atlantic and one site in the northeast Atlantic representing the primary spawning area along the western slope of the Barents Sea. We applied genotype by sequencing and discovered 90 genetic markers that could be used to assess genetic differentiation among the four sites. The northeast and northwest Atlantic showed major genetic differentiation, supporting the existence of the two primary spawning clusters. Additionally, we found genetic differentiation between the three northwest Atlantic samples implying the existence of more than one spawning area in the northwest. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Gíslason, Davíð Estévez-Barcia, Daniel Sveinsson, Sæmundur Hansen, Agneta Roy, Denis Treble, Margaret Boje, Jesper Vihtakari, Mikko Elvarsson, Bjarki Þór Hedges, Kevin Hallfredsson, Elvar Halldor Johansen, Torild |
spellingShingle |
Gíslason, Davíð Estévez-Barcia, Daniel Sveinsson, Sæmundur Hansen, Agneta Roy, Denis Treble, Margaret Boje, Jesper Vihtakari, Mikko Elvarsson, Bjarki Þór Hedges, Kevin Hallfredsson, Elvar Halldor Johansen, Torild Population structure discovered in juveniles of Greenland halibut (Reinhardtius hippoglossoides Walbaum, 1792) |
author_facet |
Gíslason, Davíð Estévez-Barcia, Daniel Sveinsson, Sæmundur Hansen, Agneta Roy, Denis Treble, Margaret Boje, Jesper Vihtakari, Mikko Elvarsson, Bjarki Þór Hedges, Kevin Hallfredsson, Elvar Halldor Johansen, Torild |
author_sort |
Gíslason, Davíð |
title |
Population structure discovered in juveniles of Greenland halibut (Reinhardtius hippoglossoides Walbaum, 1792) |
title_short |
Population structure discovered in juveniles of Greenland halibut (Reinhardtius hippoglossoides Walbaum, 1792) |
title_full |
Population structure discovered in juveniles of Greenland halibut (Reinhardtius hippoglossoides Walbaum, 1792) |
title_fullStr |
Population structure discovered in juveniles of Greenland halibut (Reinhardtius hippoglossoides Walbaum, 1792) |
title_full_unstemmed |
Population structure discovered in juveniles of Greenland halibut (Reinhardtius hippoglossoides Walbaum, 1792) |
title_sort |
population structure discovered in juveniles of greenland halibut (reinhardtius hippoglossoides walbaum, 1792) |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3094470 https://doi.org/10.1093/icesjms/fsad011 |
genre |
Barents Sea Davis Strait Greenland North Atlantic Northeast Atlantic Northwest Atlantic |
genre_facet |
Barents Sea Davis Strait Greenland North Atlantic Northeast Atlantic Northwest Atlantic |
op_source |
889-896 80 ICES Journal of Marine Science 4 |
op_relation |
Havforskningsinstituttet: 15179 ICES Journal of Marine Science. 2023, 80 (4), 889-896. urn:issn:1054-3139 https://hdl.handle.net/11250/3094470 https://doi.org/10.1093/icesjms/fsad011 cristin:2175018 |
op_doi |
https://doi.org/10.1093/icesjms/fsad011 |
container_title |
ICES Journal of Marine Science |
container_volume |
80 |
container_issue |
4 |
container_start_page |
889 |
op_container_end_page |
896 |
_version_ |
1781697007011758080 |