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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ftdoajarticles:oai:doaj.org/article:81f056fc9d7d43a4b97934f0873b6a58 2023-05-15T17:38:32+02:00 Migration and fisheries of north east Atlantic mackerel (Scomber scombrus) in autumn and winter. Teunis Jansen Andrew Campbell Ciarán Kelly Hjálmar Hátún Mark R Payne 2012-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0051541 https://doaj.org/article/81f056fc9d7d43a4b97934f0873b6a58 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3519697?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0051541 https://doaj.org/article/81f056fc9d7d43a4b97934f0873b6a58 PLoS ONE, Vol 7, Iss 12, p e51541 (2012) Medicine R Science Q article 2012 ftdoajarticles https://doi.org/10.1371/journal.pone.0051541 2022-12-31T07:29:09Z 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. Article in Journal/Newspaper North East Atlantic Directory of Open Access Journals: DOAJ Articles PLoS ONE 7 12 e51541 |
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English |
topic |
Medicine R Science Q |
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Medicine R Science Q Teunis Jansen Andrew Campbell Ciarán Kelly Hjálmar Hátún Mark R Payne Migration and fisheries of north east Atlantic mackerel (Scomber scombrus) in autumn and winter. |
topic_facet |
Medicine R Science Q |
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 |
Article in Journal/Newspaper |
author |
Teunis Jansen Andrew Campbell Ciarán Kelly Hjálmar Hátún Mark R Payne |
author_facet |
Teunis Jansen Andrew Campbell Ciarán Kelly Hjálmar Hátún Mark R Payne |
author_sort |
Teunis Jansen |
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 (PLoS) |
publishDate |
2012 |
url |
https://doi.org/10.1371/journal.pone.0051541 https://doaj.org/article/81f056fc9d7d43a4b97934f0873b6a58 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
PLoS ONE, Vol 7, Iss 12, p e51541 (2012) |
op_relation |
http://europepmc.org/articles/PMC3519697?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0051541 https://doaj.org/article/81f056fc9d7d43a4b97934f0873b6a58 |
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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12 |
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