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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ftnuigalway:oai:aran.library.nuigalway.ie/:10379/12072 2023-06-11T04:15:08+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://hdl.handle.net/10379/12072 https://doi.org/10.1371/journal.pone.0051541 unknown Public Library of Science (PLoS) PLoS ONE Jansen, Teunis; Campbell, Andrew; Kelly, Ciarán; Hátún, Hjálmar; Payne, Mark R. (2012). Migration and fisheries of north east atlantic mackerel (scomber scombrus) in autumn and winter. PLoS ONE 7 (12), 1932-6203 http://hdl.handle.net/10379/12072 doi:10.1371/journal.pone.0051541 Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ whiting micromesistius-poutassou subpolar gyre circulation scotland climate impact ocean sea Article 2012 ftnuigalway https://doi.org/10.1371/journal.pone.0051541 2023-05-28T18:05:28Z 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 National University of Ireland (NUI), Galway: ARAN PLoS ONE 7 12 e51541 |
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Open Polar |
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National University of Ireland (NUI), Galway: ARAN |
op_collection_id |
ftnuigalway |
language |
unknown |
topic |
whiting micromesistius-poutassou subpolar gyre circulation scotland climate impact ocean sea |
spellingShingle |
whiting micromesistius-poutassou subpolar gyre circulation scotland climate impact ocean sea 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 |
topic_facet |
whiting micromesistius-poutassou subpolar gyre circulation scotland climate impact ocean sea |
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 |
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 (PLoS) |
publishDate |
2012 |
url |
http://hdl.handle.net/10379/12072 https://doi.org/10.1371/journal.pone.0051541 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_relation |
PLoS ONE Jansen, Teunis; Campbell, Andrew; Kelly, Ciarán; Hátún, Hjálmar; Payne, Mark R. (2012). Migration and fisheries of north east atlantic mackerel (scomber scombrus) in autumn and winter. PLoS ONE 7 (12), 1932-6203 http://hdl.handle.net/10379/12072 doi:10.1371/journal.pone.0051541 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ |
op_doi |
https://doi.org/10.1371/journal.pone.0051541 |
container_title |
PLoS ONE |
container_volume |
7 |
container_issue |
12 |
container_start_page |
e51541 |
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1768371738478903296 |