Ticket to spawn: Combining economic and genetic data to evaluate the effect of climate and demographic structure on spawning distribution in Atlantic cod
Climate warming and harvesting affect the dynamics of species across the globe through a multitude of mechanisms, including distribution changes. In fish, migrations to and distribution on spawning grounds are likely influenced by both climate warming and harvesting. The Northeast Arctic (NEA) cod (...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7379705/ http://www.ncbi.nlm.nih.gov/pubmed/30300937 https://doi.org/10.1111/gcb.14474 |
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ftpubmed:oai:pubmedcentral.nih.gov:7379705 2023-05-15T15:16:16+02:00 Ticket to spawn: Combining economic and genetic data to evaluate the effect of climate and demographic structure on spawning distribution in Atlantic cod Langangen, Øystein Färber, Leonie Stige, Leif C. Diekert, Florian K. Barth, Julia M. I. Matschiner, Michael Berg, Paul R. Star, Bastiaan Stenseth, Nils Chr. Jentoft, Sissel Durant, Joël M. 2018-10-30 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7379705/ http://www.ncbi.nlm.nih.gov/pubmed/30300937 https://doi.org/10.1111/gcb.14474 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7379705/ http://www.ncbi.nlm.nih.gov/pubmed/30300937 http://dx.doi.org/10.1111/gcb.14474 © 2018 The Authors. Global Change Biology Published by John Wiley & Sons Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Glob Chang Biol Primary Research Articles Text 2018 ftpubmed https://doi.org/10.1111/gcb.14474 2020-08-02T00:27:16Z Climate warming and harvesting affect the dynamics of species across the globe through a multitude of mechanisms, including distribution changes. In fish, migrations to and distribution on spawning grounds are likely influenced by both climate warming and harvesting. The Northeast Arctic (NEA) cod (Gadus morhua) performs seasonal migrations from its feeding grounds in the Barents Sea to spawning grounds along the Norwegian coast. The distribution of cod between the spawning grounds has historically changed at decadal scales, mainly due to variable use of the northern and southern margins of the spawning area. Based on historical landing records, two major hypotheses have been put forward to explain these changes: climate and harvesting. Climate could affect the distribution through, for example, spatial habitat shifts. Harvesting could affect the distribution through impacting the demographic structure. If demographic structure is important, theory predicts increasing spawner size with migration distance. Here, we evaluate these hypotheses with modern data from a period (2000–2016) of increasing temperature and recovering stock structure. We first analyze economic data from the Norwegian fisheries to investigate geographical differences in size of spawning fish among spawning grounds, as well as interannual differences in mean latitude of spawning in relation to changes in temperature and demographic parameters. Second, we analyze genetically determined fish sampled at the spawning grounds to unambiguously separate between migratory NEA cod and potentially smaller sized coastal cod of local origin. Our results indicate smaller spawners farther away from the feeding grounds, hence not supporting the hypothesis that harvesting is a main driver for the contemporary spawning ground distribution. We find a positive correlation between annual mean spawning latitude and temperature. In conclusion, based on contemporary data, there is more support for climate compared to harvesting in shaping spawning ground ... Text Arctic atlantic cod Barents Sea Gadus morhua PubMed Central (PMC) Arctic Barents Sea Global Change Biology 25 1 134 143 |
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Primary Research Articles |
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Primary Research Articles Langangen, Øystein Färber, Leonie Stige, Leif C. Diekert, Florian K. Barth, Julia M. I. Matschiner, Michael Berg, Paul R. Star, Bastiaan Stenseth, Nils Chr. Jentoft, Sissel Durant, Joël M. Ticket to spawn: Combining economic and genetic data to evaluate the effect of climate and demographic structure on spawning distribution in Atlantic cod |
topic_facet |
Primary Research Articles |
description |
Climate warming and harvesting affect the dynamics of species across the globe through a multitude of mechanisms, including distribution changes. In fish, migrations to and distribution on spawning grounds are likely influenced by both climate warming and harvesting. The Northeast Arctic (NEA) cod (Gadus morhua) performs seasonal migrations from its feeding grounds in the Barents Sea to spawning grounds along the Norwegian coast. The distribution of cod between the spawning grounds has historically changed at decadal scales, mainly due to variable use of the northern and southern margins of the spawning area. Based on historical landing records, two major hypotheses have been put forward to explain these changes: climate and harvesting. Climate could affect the distribution through, for example, spatial habitat shifts. Harvesting could affect the distribution through impacting the demographic structure. If demographic structure is important, theory predicts increasing spawner size with migration distance. Here, we evaluate these hypotheses with modern data from a period (2000–2016) of increasing temperature and recovering stock structure. We first analyze economic data from the Norwegian fisheries to investigate geographical differences in size of spawning fish among spawning grounds, as well as interannual differences in mean latitude of spawning in relation to changes in temperature and demographic parameters. Second, we analyze genetically determined fish sampled at the spawning grounds to unambiguously separate between migratory NEA cod and potentially smaller sized coastal cod of local origin. Our results indicate smaller spawners farther away from the feeding grounds, hence not supporting the hypothesis that harvesting is a main driver for the contemporary spawning ground distribution. We find a positive correlation between annual mean spawning latitude and temperature. In conclusion, based on contemporary data, there is more support for climate compared to harvesting in shaping spawning ground ... |
format |
Text |
author |
Langangen, Øystein Färber, Leonie Stige, Leif C. Diekert, Florian K. Barth, Julia M. I. Matschiner, Michael Berg, Paul R. Star, Bastiaan Stenseth, Nils Chr. Jentoft, Sissel Durant, Joël M. |
author_facet |
Langangen, Øystein Färber, Leonie Stige, Leif C. Diekert, Florian K. Barth, Julia M. I. Matschiner, Michael Berg, Paul R. Star, Bastiaan Stenseth, Nils Chr. Jentoft, Sissel Durant, Joël M. |
author_sort |
Langangen, Øystein |
title |
Ticket to spawn: Combining economic and genetic data to evaluate the effect of climate and demographic structure on spawning distribution in Atlantic cod |
title_short |
Ticket to spawn: Combining economic and genetic data to evaluate the effect of climate and demographic structure on spawning distribution in Atlantic cod |
title_full |
Ticket to spawn: Combining economic and genetic data to evaluate the effect of climate and demographic structure on spawning distribution in Atlantic cod |
title_fullStr |
Ticket to spawn: Combining economic and genetic data to evaluate the effect of climate and demographic structure on spawning distribution in Atlantic cod |
title_full_unstemmed |
Ticket to spawn: Combining economic and genetic data to evaluate the effect of climate and demographic structure on spawning distribution in Atlantic cod |
title_sort |
ticket to spawn: combining economic and genetic data to evaluate the effect of climate and demographic structure on spawning distribution in atlantic cod |
publisher |
John Wiley and Sons Inc. |
publishDate |
2018 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7379705/ http://www.ncbi.nlm.nih.gov/pubmed/30300937 https://doi.org/10.1111/gcb.14474 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic atlantic cod Barents Sea Gadus morhua |
genre_facet |
Arctic atlantic cod Barents Sea Gadus morhua |
op_source |
Glob Chang Biol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7379705/ http://www.ncbi.nlm.nih.gov/pubmed/30300937 http://dx.doi.org/10.1111/gcb.14474 |
op_rights |
© 2018 The Authors. Global Change Biology Published by John Wiley & Sons Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1111/gcb.14474 |
container_title |
Global Change Biology |
container_volume |
25 |
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1 |
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134 |
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143 |
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1766346562020048896 |