Geographical expansion of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2016 was primarily driven by stock size and constrained by low temperatures
In the mid-2000s, summer feeding distribution of Northeast Atlantic mackerel (Scomber scombrus) in Nordic Seas began expanding into new areas. The present study explores how spawning stock biomass (SSB) and environmental conditions influenced this expansion using data from scientific surveys conduct...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Language: | English |
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2019
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ftdtupubl:oai:pure.atira.dk:publications/26e08d56-c7e7-4a40-93f9-42878964a524 2024-09-15T18:20:28+00:00 Geographical expansion of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2016 was primarily driven by stock size and constrained by low temperatures Olafsdottir, Anna H. Utne, Kjell Rong Jacobsen, Jan Arge Jansen, Teunis Óskarsson, Guðmundur J. Nøttestad, Leif Elvarsson, Bjarki Þ. Broms, Cecilie Slotte, Aril 2019 application/pdf https://orbit.dtu.dk/en/publications/26e08d56-c7e7-4a40-93f9-42878964a524 https://doi.org/10.1016/j.dsr2.2018.05.023 https://backend.orbit.dtu.dk/ws/files/148891769/Postprint.pdf eng eng https://orbit.dtu.dk/en/publications/26e08d56-c7e7-4a40-93f9-42878964a524 info:eu-repo/semantics/openAccess Olafsdottir , A H , Utne , K R , Jacobsen , J A , Jansen , T , Óskarsson , G J , Nøttestad , L , Elvarsson , B Þ , Broms , C & Slotte , A 2019 , ' Geographical expansion of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2016 was primarily driven by stock size and constrained by low temperatures ' , Deep-Sea Research. Part 2: Topical Studies in Oceanography , vol. 159 , pp. 152-168 . https://doi.org/10.1016/j.dsr2.2018.05.023 Northeast Atlantic mackerel Scomber scombus Geographical expansion Nordic seas Spawning stock biomass Temperature Mesozooplankton abundance Mean relative wight-at-length /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2019 ftdtupubl https://doi.org/10.1016/j.dsr2.2018.05.023 2024-07-15T23:49:10Z In the mid-2000s, summer feeding distribution of Northeast Atlantic mackerel (Scomber scombrus) in Nordic Seas began expanding into new areas. The present study explores how spawning stock biomass (SSB) and environmental conditions influenced this expansion using data from scientific surveys conducted in Nordic Seas from 1997 to 2016. During that period mackerel distribution range increased three-fold and the centre-of-gravity shifted westward by 1650 km and northward by 400 km. Distribution range peaked in 2014 and was positively correlated to SSB. Mackerel was present in temperatures ranging from 5 °C to 15 °C, but preferred areas with temperatures between 9 °C and 13 °C according to univariate quotient analysis. Generalized additive models showed that both mackerel occurrence and density were positively related to location, ambient temperature, mesozooplankton density and SSB, explaining 47% and 32% of deviance, respectively. Mackerel relative mean weight-at-length was positively related to location, day-of-year, temperature and SSB, but not with mesozooplankton density, explaining 40% of the deviance. We conclude that geographical expansion of mackerel during the summer feeding season in Nordic Seas was driven by increasing mackerel stock size and constrained by availability of preferred temperature and abundance of mesozooplankton. Marine climate with multidecadal variability probably impacted the observed distributional changes but were not evaluated. Our results were limited to the direct effects of temperature, mesozooplankton abundance, and SSB on distribution range during the last two decades and should be viewed as such. Article in Journal/Newspaper Nordic Seas Northeast Atlantic Technical University of Denmark: DTU Orbit Deep Sea Research Part II: Topical Studies in Oceanography 159 152 168 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Northeast Atlantic mackerel Scomber scombus Geographical expansion Nordic seas Spawning stock biomass Temperature Mesozooplankton abundance Mean relative wight-at-length /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
Northeast Atlantic mackerel Scomber scombus Geographical expansion Nordic seas Spawning stock biomass Temperature Mesozooplankton abundance Mean relative wight-at-length /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Olafsdottir, Anna H. Utne, Kjell Rong Jacobsen, Jan Arge Jansen, Teunis Óskarsson, Guðmundur J. Nøttestad, Leif Elvarsson, Bjarki Þ. Broms, Cecilie Slotte, Aril Geographical expansion of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2016 was primarily driven by stock size and constrained by low temperatures |
topic_facet |
Northeast Atlantic mackerel Scomber scombus Geographical expansion Nordic seas Spawning stock biomass Temperature Mesozooplankton abundance Mean relative wight-at-length /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
In the mid-2000s, summer feeding distribution of Northeast Atlantic mackerel (Scomber scombrus) in Nordic Seas began expanding into new areas. The present study explores how spawning stock biomass (SSB) and environmental conditions influenced this expansion using data from scientific surveys conducted in Nordic Seas from 1997 to 2016. During that period mackerel distribution range increased three-fold and the centre-of-gravity shifted westward by 1650 km and northward by 400 km. Distribution range peaked in 2014 and was positively correlated to SSB. Mackerel was present in temperatures ranging from 5 °C to 15 °C, but preferred areas with temperatures between 9 °C and 13 °C according to univariate quotient analysis. Generalized additive models showed that both mackerel occurrence and density were positively related to location, ambient temperature, mesozooplankton density and SSB, explaining 47% and 32% of deviance, respectively. Mackerel relative mean weight-at-length was positively related to location, day-of-year, temperature and SSB, but not with mesozooplankton density, explaining 40% of the deviance. We conclude that geographical expansion of mackerel during the summer feeding season in Nordic Seas was driven by increasing mackerel stock size and constrained by availability of preferred temperature and abundance of mesozooplankton. Marine climate with multidecadal variability probably impacted the observed distributional changes but were not evaluated. Our results were limited to the direct effects of temperature, mesozooplankton abundance, and SSB on distribution range during the last two decades and should be viewed as such. |
format |
Article in Journal/Newspaper |
author |
Olafsdottir, Anna H. Utne, Kjell Rong Jacobsen, Jan Arge Jansen, Teunis Óskarsson, Guðmundur J. Nøttestad, Leif Elvarsson, Bjarki Þ. Broms, Cecilie Slotte, Aril |
author_facet |
Olafsdottir, Anna H. Utne, Kjell Rong Jacobsen, Jan Arge Jansen, Teunis Óskarsson, Guðmundur J. Nøttestad, Leif Elvarsson, Bjarki Þ. Broms, Cecilie Slotte, Aril |
author_sort |
Olafsdottir, Anna H. |
title |
Geographical expansion of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2016 was primarily driven by stock size and constrained by low temperatures |
title_short |
Geographical expansion of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2016 was primarily driven by stock size and constrained by low temperatures |
title_full |
Geographical expansion of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2016 was primarily driven by stock size and constrained by low temperatures |
title_fullStr |
Geographical expansion of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2016 was primarily driven by stock size and constrained by low temperatures |
title_full_unstemmed |
Geographical expansion of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2016 was primarily driven by stock size and constrained by low temperatures |
title_sort |
geographical expansion of northeast atlantic mackerel (scomber scombrus) in the nordic seas from 2007 to 2016 was primarily driven by stock size and constrained by low temperatures |
publishDate |
2019 |
url |
https://orbit.dtu.dk/en/publications/26e08d56-c7e7-4a40-93f9-42878964a524 https://doi.org/10.1016/j.dsr2.2018.05.023 https://backend.orbit.dtu.dk/ws/files/148891769/Postprint.pdf |
genre |
Nordic Seas Northeast Atlantic |
genre_facet |
Nordic Seas Northeast Atlantic |
op_source |
Olafsdottir , A H , Utne , K R , Jacobsen , J A , Jansen , T , Óskarsson , G J , Nøttestad , L , Elvarsson , B Þ , Broms , C & Slotte , A 2019 , ' Geographical expansion of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2016 was primarily driven by stock size and constrained by low temperatures ' , Deep-Sea Research. Part 2: Topical Studies in Oceanography , vol. 159 , pp. 152-168 . https://doi.org/10.1016/j.dsr2.2018.05.023 |
op_relation |
https://orbit.dtu.dk/en/publications/26e08d56-c7e7-4a40-93f9-42878964a524 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.dsr2.2018.05.023 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
159 |
container_start_page |
152 |
op_container_end_page |
168 |
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1810458854504267776 |