New evidence for the establishment of coastal cod Gadus morhua in Svalbard fjords
The Arctic is experiencing increasing water temperatures, leading to a northward shift of Atlantic species into Arctic waters. Arctic marine ecosystems are therefore subject to sub- stantial changes in species distributions and occurrence due to anthropogenic climate change. Atlantic cod is one of t...
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Online Access: | https://epic.awi.de/id/eprint/57094/ https://epic.awi.de/id/eprint/57094/1/Cod_Svalbard_Lisa.pdf https://doi.org/10.3354/meps14126 https://hdl.handle.net/10013/epic.1502ad64-b698-4d73-a533-87147e9031b2 https://hdl.handle.net/ |
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ftawi:oai:epic.awi.de:57094 2023-05-15T14:30:29+02:00 New evidence for the establishment of coastal cod Gadus morhua in Svalbard fjords Spotowitz, Lisa Johansen, Torild Hansen, Agneta Berg, Erik Stransky, Christoph Fischer, Philipp 2022 application/pdf https://epic.awi.de/id/eprint/57094/ https://epic.awi.de/id/eprint/57094/1/Cod_Svalbard_Lisa.pdf https://doi.org/10.3354/meps14126 https://hdl.handle.net/10013/epic.1502ad64-b698-4d73-a533-87147e9031b2 https://hdl.handle.net/ unknown https://epic.awi.de/id/eprint/57094/1/Cod_Svalbard_Lisa.pdf https://hdl.handle.net/ Spotowitz, L. orcid:0000-0003-2980-0071 , Johansen, T. , Hansen, A. , Berg, E. , Stransky, C. and Fischer, P. orcid:0000-0002-3357-5420 (2022) New evidence for the establishment of coastal cod Gadus morhua in Svalbard fjords , Marine Ecology Progress Series, 696 , pp. 119-133 . doi:10.3354/meps14126 <https://doi.org/10.3354/meps14126> , hdl:10013/epic.1502ad64-b698-4d73-a533-87147e9031b2 EPIC3Marine Ecology Progress Series, 696, pp. 119-133, ISSN: 0171-8630 Article isiRev 2022 ftawi https://doi.org/10.3354/meps14126 2022-09-25T23:12:30Z The Arctic is experiencing increasing water temperatures, leading to a northward shift of Atlantic species into Arctic waters. Arctic marine ecosystems are therefore subject to sub- stantial changes in species distributions and occurrence due to anthropogenic climate change. Atlantic cod is one of the most important commercial fish species in the northern seas. The largest known stock is the migrating Northeast Arctic cod (NEAC) that is distributed along the Norwe- gian coast, the Barents Sea and off Svalbard. Atlantic cod in Svalbard waters are generally reported in the literature as belonging to the NEAC ecotype. The more stationary coastal cod (CC) spawn together with NEAC in the Lofoten region and several other areas along the Norwegian coast. The aim of this study was to investigate the population structure of Atlantic cod in Svalbard waters. We used single nucleotide polymorphic (SNP) markers, the pantophysin locus (Pan I) and otolith structure to categorize the 2 cod ecotypes collected in Svalbard fjords between 2017 and 2019. Our results show that both NEAC and CC appear in Svalbard fjords and revealed that 0- group and adult CC individuals caught in Svalbard fjords differ genetically from those along the Norwegian coast, indicating a separation into a local Svalbard CC population. The establishment of CC in Svalbard fjords may be another keystone of the ongoing borealization of the Arctic, with consequences for the local Arctic fjord ecosystem. Article in Journal/Newspaper Arctic cod Arctic atlantic cod Barents Sea Climate change Gadus morhua Lofoten Northeast Arctic cod Svalbard Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Svalbard Barents Sea Lofoten Marine Ecology Progress Series 696 119 133 |
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Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The Arctic is experiencing increasing water temperatures, leading to a northward shift of Atlantic species into Arctic waters. Arctic marine ecosystems are therefore subject to sub- stantial changes in species distributions and occurrence due to anthropogenic climate change. Atlantic cod is one of the most important commercial fish species in the northern seas. The largest known stock is the migrating Northeast Arctic cod (NEAC) that is distributed along the Norwe- gian coast, the Barents Sea and off Svalbard. Atlantic cod in Svalbard waters are generally reported in the literature as belonging to the NEAC ecotype. The more stationary coastal cod (CC) spawn together with NEAC in the Lofoten region and several other areas along the Norwegian coast. The aim of this study was to investigate the population structure of Atlantic cod in Svalbard waters. We used single nucleotide polymorphic (SNP) markers, the pantophysin locus (Pan I) and otolith structure to categorize the 2 cod ecotypes collected in Svalbard fjords between 2017 and 2019. Our results show that both NEAC and CC appear in Svalbard fjords and revealed that 0- group and adult CC individuals caught in Svalbard fjords differ genetically from those along the Norwegian coast, indicating a separation into a local Svalbard CC population. The establishment of CC in Svalbard fjords may be another keystone of the ongoing borealization of the Arctic, with consequences for the local Arctic fjord ecosystem. |
format |
Article in Journal/Newspaper |
author |
Spotowitz, Lisa Johansen, Torild Hansen, Agneta Berg, Erik Stransky, Christoph Fischer, Philipp |
spellingShingle |
Spotowitz, Lisa Johansen, Torild Hansen, Agneta Berg, Erik Stransky, Christoph Fischer, Philipp New evidence for the establishment of coastal cod Gadus morhua in Svalbard fjords |
author_facet |
Spotowitz, Lisa Johansen, Torild Hansen, Agneta Berg, Erik Stransky, Christoph Fischer, Philipp |
author_sort |
Spotowitz, Lisa |
title |
New evidence for the establishment of coastal cod Gadus morhua in Svalbard fjords |
title_short |
New evidence for the establishment of coastal cod Gadus morhua in Svalbard fjords |
title_full |
New evidence for the establishment of coastal cod Gadus morhua in Svalbard fjords |
title_fullStr |
New evidence for the establishment of coastal cod Gadus morhua in Svalbard fjords |
title_full_unstemmed |
New evidence for the establishment of coastal cod Gadus morhua in Svalbard fjords |
title_sort |
new evidence for the establishment of coastal cod gadus morhua in svalbard fjords |
publishDate |
2022 |
url |
https://epic.awi.de/id/eprint/57094/ https://epic.awi.de/id/eprint/57094/1/Cod_Svalbard_Lisa.pdf https://doi.org/10.3354/meps14126 https://hdl.handle.net/10013/epic.1502ad64-b698-4d73-a533-87147e9031b2 https://hdl.handle.net/ |
geographic |
Arctic Svalbard Barents Sea Lofoten |
geographic_facet |
Arctic Svalbard Barents Sea Lofoten |
genre |
Arctic cod Arctic atlantic cod Barents Sea Climate change Gadus morhua Lofoten Northeast Arctic cod Svalbard |
genre_facet |
Arctic cod Arctic atlantic cod Barents Sea Climate change Gadus morhua Lofoten Northeast Arctic cod Svalbard |
op_source |
EPIC3Marine Ecology Progress Series, 696, pp. 119-133, ISSN: 0171-8630 |
op_relation |
https://epic.awi.de/id/eprint/57094/1/Cod_Svalbard_Lisa.pdf https://hdl.handle.net/ Spotowitz, L. orcid:0000-0003-2980-0071 , Johansen, T. , Hansen, A. , Berg, E. , Stransky, C. and Fischer, P. orcid:0000-0002-3357-5420 (2022) New evidence for the establishment of coastal cod Gadus morhua in Svalbard fjords , Marine Ecology Progress Series, 696 , pp. 119-133 . doi:10.3354/meps14126 <https://doi.org/10.3354/meps14126> , hdl:10013/epic.1502ad64-b698-4d73-a533-87147e9031b2 |
op_doi |
https://doi.org/10.3354/meps14126 |
container_title |
Marine Ecology Progress Series |
container_volume |
696 |
container_start_page |
119 |
op_container_end_page |
133 |
_version_ |
1766304323476652032 |