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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Published in:ICES Journal of Marine Science
Main Authors: Hansen, Agneta, Westgaard, Jon-Ivar, Søvik, Guldborg, Hanebrekke, Tanja Lexau, Nilssen, Einar Magnus, Jorde, Per Erik, Albretsen, Jon, Johansen, Torild
Format: Article in Journal/Newspaper
Language:English
Published: 2021
Subjects:
Online Access:https://hdl.handle.net/11250/2838647
https://doi.org/10.1093/icesjms/fsab181
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spelling 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
institution Open Polar
collection Institute for Marine Research: Brage IMR
op_collection_id 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
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