Migration and Fisheries of North East Atlantic Mackerel (Scomber scombrus) in Autumn and Winter
It has been suggested that observed spatial variation in mackerel fisheries, extending over several hundreds of kilometers, is reflective of climate-driven changes in mackerel migration patterns. Previous studies have been unable to clearly demonstrate this link. In this paper we demonstrate correla...
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ftpubmed:oai:pubmedcentral.nih.gov:3519697 2023-05-15T17:38:32+02:00 Migration and Fisheries of North East Atlantic Mackerel (Scomber scombrus) in Autumn and Winter Jansen, Teunis Campbell, Andrew Kelly, Ciarán Hátún, Hjálmar Payne, Mark R. 2012-12-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3519697 http://www.ncbi.nlm.nih.gov/pubmed/23251570 https://doi.org/10.1371/journal.pone.0051541 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3519697 http://www.ncbi.nlm.nih.gov/pubmed/23251570 http://dx.doi.org/10.1371/journal.pone.0051541 This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2012 ftpubmed https://doi.org/10.1371/journal.pone.0051541 2013-09-04T17:05:03Z It has been suggested that observed spatial variation in mackerel fisheries, extending over several hundreds of kilometers, is reflective of climate-driven changes in mackerel migration patterns. Previous studies have been unable to clearly demonstrate this link. In this paper we demonstrate correlation between temperature and mackerel migration/distribution as proxied by mackerel catch data from both scientific bottom trawl surveys and commercial fisheries. We show that mackerel aggregate and migrate distances of up to 500 km along the continental shelf edge from mid-November to early March. The path of this migration coincides with the location of the relatively warm shelf edge current and, as a consequence of this affinity, mackerel are guided towards the main spawning area in the south. Using a simulated time series of temperature of the shelf edge current we show that variations in the timing of the migration are significantly correlated to temperature fluctuations within the current. The proposed proxies for mackerel distribution were found to be significantly correlated. However, the correlations were weak and only significant during periods without substantial legislative or technical developments. Substantial caution should therefore be exercised when using such data as proxies for mackerel distribution. Our results include a new temperature record for the shelf edge current obtained by embedding the available hydrographic observations within a statistical model needed to understand the migration through large parts of the life of adult mackerel and for the management of this major international fishery. Text North East Atlantic PubMed Central (PMC) PLoS ONE 7 12 e51541 |
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Research Article Jansen, Teunis Campbell, Andrew Kelly, Ciarán Hátún, Hjálmar Payne, Mark R. Migration and Fisheries of North East Atlantic Mackerel (Scomber scombrus) in Autumn and Winter |
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Research Article |
description |
It has been suggested that observed spatial variation in mackerel fisheries, extending over several hundreds of kilometers, is reflective of climate-driven changes in mackerel migration patterns. Previous studies have been unable to clearly demonstrate this link. In this paper we demonstrate correlation between temperature and mackerel migration/distribution as proxied by mackerel catch data from both scientific bottom trawl surveys and commercial fisheries. We show that mackerel aggregate and migrate distances of up to 500 km along the continental shelf edge from mid-November to early March. The path of this migration coincides with the location of the relatively warm shelf edge current and, as a consequence of this affinity, mackerel are guided towards the main spawning area in the south. Using a simulated time series of temperature of the shelf edge current we show that variations in the timing of the migration are significantly correlated to temperature fluctuations within the current. The proposed proxies for mackerel distribution were found to be significantly correlated. However, the correlations were weak and only significant during periods without substantial legislative or technical developments. Substantial caution should therefore be exercised when using such data as proxies for mackerel distribution. Our results include a new temperature record for the shelf edge current obtained by embedding the available hydrographic observations within a statistical model needed to understand the migration through large parts of the life of adult mackerel and for the management of this major international fishery. |
format |
Text |
author |
Jansen, Teunis Campbell, Andrew Kelly, Ciarán Hátún, Hjálmar Payne, Mark R. |
author_facet |
Jansen, Teunis Campbell, Andrew Kelly, Ciarán Hátún, Hjálmar Payne, Mark R. |
author_sort |
Jansen, Teunis |
title |
Migration and Fisheries of North East Atlantic Mackerel (Scomber scombrus) in Autumn and Winter |
title_short |
Migration and Fisheries of North East Atlantic Mackerel (Scomber scombrus) in Autumn and Winter |
title_full |
Migration and Fisheries of North East Atlantic Mackerel (Scomber scombrus) in Autumn and Winter |
title_fullStr |
Migration and Fisheries of North East Atlantic Mackerel (Scomber scombrus) in Autumn and Winter |
title_full_unstemmed |
Migration and Fisheries of North East Atlantic Mackerel (Scomber scombrus) in Autumn and Winter |
title_sort |
migration and fisheries of north east atlantic mackerel (scomber scombrus) in autumn and winter |
publisher |
Public Library of Science |
publishDate |
2012 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3519697 http://www.ncbi.nlm.nih.gov/pubmed/23251570 https://doi.org/10.1371/journal.pone.0051541 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3519697 http://www.ncbi.nlm.nih.gov/pubmed/23251570 http://dx.doi.org/10.1371/journal.pone.0051541 |
op_rights |
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0051541 |
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PLoS ONE |
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7 |
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