Genetic differentiation between inshore and offshore populations of northern shrimp (Pandalus borealis)
Many marine organisms have a permanent presence both inshore and offshore and spawn in multiple areas, yet their status as separate populations or stocks remain unclear. This is the situation for the northern shrimp (Pandalus borealis) around the Arctic Ocean, which in northern Norway represents an...
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Online Access: | https://hdl.handle.net/11250/2838647 https://doi.org/10.1093/icesjms/fsab181 |
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ftimr:oai:imr.brage.unit.no:11250/2838647 2023-05-15T15:04:13+02:00 Genetic differentiation between inshore and offshore populations of northern shrimp (Pandalus borealis) Hansen, Agneta Westgaard, Jon-Ivar Søvik, Guldborg Hanebrekke, Tanja Lexau Nilssen, Einar Magnus Jorde, Per Erik Albretsen, Jon Johansen, Torild 2021 application/pdf https://hdl.handle.net/11250/2838647 https://doi.org/10.1093/icesjms/fsab181 eng eng Norges forskningsråd: 299554 ICES Journal of Marine Science. 2021, 78 (9), 3135-3146. urn:issn:1054-3139 https://hdl.handle.net/11250/2838647 https://doi.org/10.1093/icesjms/fsab181 cristin:1973193 3135-3146 78 ICES Journal of Marine Science 9 Peer reviewed Journal article 2021 ftimr https://doi.org/10.1093/icesjms/fsab181 2022-01-26T23:38:54Z Many marine organisms have a permanent presence both inshore and offshore and spawn in multiple areas, yet their status as separate populations or stocks remain unclear. This is the situation for the northern shrimp (Pandalus borealis) around the Arctic Ocean, which in northern Norway represents an important income for a small-scale coastal fishery and a large-vessel offshore fleet. In Norwegian waters, we uncovered two distinct genetic clusters, viz. a Norwegian coastal and a Barents Sea cluster. Shrimps with a mixed heritage from the Norwegian coastal and the Barents Sea clusters, and genetically different from both, inhabit the fjords at the northernmost coast (Finnmark). Genetic structure between fjords did not display any general trend, and only the Varangerfjord in eastern Finnmark displayed significant genetic structure within the fjord. Shrimps in the Finnmark fjords differed in some degree from shrimps both in the adjacent Barents Sea and along the rest of the coast and should probably be considered a separate management unit. publishedVersion Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Finnmark Northern Norway northern shrimp Pandalus borealis Varangerfjord Varangerfjord* Finnmark Institute for Marine Research: Brage IMR Arctic Arctic Ocean Barents Sea Norway ICES Journal of Marine Science 78 9 3135 3146 |
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Open Polar |
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Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
description |
Many marine organisms have a permanent presence both inshore and offshore and spawn in multiple areas, yet their status as separate populations or stocks remain unclear. This is the situation for the northern shrimp (Pandalus borealis) around the Arctic Ocean, which in northern Norway represents an important income for a small-scale coastal fishery and a large-vessel offshore fleet. In Norwegian waters, we uncovered two distinct genetic clusters, viz. a Norwegian coastal and a Barents Sea cluster. Shrimps with a mixed heritage from the Norwegian coastal and the Barents Sea clusters, and genetically different from both, inhabit the fjords at the northernmost coast (Finnmark). Genetic structure between fjords did not display any general trend, and only the Varangerfjord in eastern Finnmark displayed significant genetic structure within the fjord. Shrimps in the Finnmark fjords differed in some degree from shrimps both in the adjacent Barents Sea and along the rest of the coast and should probably be considered a separate management unit. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Hansen, Agneta Westgaard, Jon-Ivar Søvik, Guldborg Hanebrekke, Tanja Lexau Nilssen, Einar Magnus Jorde, Per Erik Albretsen, Jon Johansen, Torild |
spellingShingle |
Hansen, Agneta Westgaard, Jon-Ivar Søvik, Guldborg Hanebrekke, Tanja Lexau Nilssen, Einar Magnus Jorde, Per Erik Albretsen, Jon Johansen, Torild Genetic differentiation between inshore and offshore populations of northern shrimp (Pandalus borealis) |
author_facet |
Hansen, Agneta Westgaard, Jon-Ivar Søvik, Guldborg Hanebrekke, Tanja Lexau Nilssen, Einar Magnus Jorde, Per Erik Albretsen, Jon Johansen, Torild |
author_sort |
Hansen, Agneta |
title |
Genetic differentiation between inshore and offshore populations of northern shrimp (Pandalus borealis) |
title_short |
Genetic differentiation between inshore and offshore populations of northern shrimp (Pandalus borealis) |
title_full |
Genetic differentiation between inshore and offshore populations of northern shrimp (Pandalus borealis) |
title_fullStr |
Genetic differentiation between inshore and offshore populations of northern shrimp (Pandalus borealis) |
title_full_unstemmed |
Genetic differentiation between inshore and offshore populations of northern shrimp (Pandalus borealis) |
title_sort |
genetic differentiation between inshore and offshore populations of northern shrimp (pandalus borealis) |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2838647 https://doi.org/10.1093/icesjms/fsab181 |
geographic |
Arctic Arctic Ocean Barents Sea Norway |
geographic_facet |
Arctic Arctic Ocean Barents Sea Norway |
genre |
Arctic Arctic Ocean Barents Sea Finnmark Northern Norway northern shrimp Pandalus borealis Varangerfjord Varangerfjord* Finnmark |
genre_facet |
Arctic Arctic Ocean Barents Sea Finnmark Northern Norway northern shrimp Pandalus borealis Varangerfjord Varangerfjord* Finnmark |
op_source |
3135-3146 78 ICES Journal of Marine Science 9 |
op_relation |
Norges forskningsråd: 299554 ICES Journal of Marine Science. 2021, 78 (9), 3135-3146. urn:issn:1054-3139 https://hdl.handle.net/11250/2838647 https://doi.org/10.1093/icesjms/fsab181 cristin:1973193 |
op_doi |
https://doi.org/10.1093/icesjms/fsab181 |
container_title |
ICES Journal of Marine Science |
container_volume |
78 |
container_issue |
9 |
container_start_page |
3135 |
op_container_end_page |
3146 |
_version_ |
1766336030395334656 |