Climate variability drives anchovies and sardines into the North and Baltic Seas

European anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) are southern, warm water species that prefer temperatures warmer than those found in boreal waters. After about 40 years of absence, they were again observed in the 1990s in increasing quantities in the North Sea and the Balt...

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Published in:Progress in Oceanography
Main Authors: Alheit, Juergen, Pohlmann, Thomas, Casini, Michele, Greve, Wulf, Hinrichs, Rosemarie, Mathis, Moritz, O'Driscoll, Kieran, Vorberg, Ralf, Wagner, Carola
Format: Article in Journal/Newspaper
Language:English
Published: 2012
Subjects:
Online Access:https://pure.qub.ac.uk/en/publications/41ecec3d-d8af-4ce5-9fa8-89f4929a8671
https://doi.org/10.1016/j.pocean.2011.11.015
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spelling ftqueensubelpubl:oai:pure.qub.ac.uk/portal:publications/41ecec3d-d8af-4ce5-9fa8-89f4929a8671 2024-09-09T19:54:17+00:00 Climate variability drives anchovies and sardines into the North and Baltic Seas Alheit, Juergen Pohlmann, Thomas Casini, Michele Greve, Wulf Hinrichs, Rosemarie Mathis, Moritz O'Driscoll, Kieran Vorberg, Ralf Wagner, Carola 2012-04 https://pure.qub.ac.uk/en/publications/41ecec3d-d8af-4ce5-9fa8-89f4929a8671 https://doi.org/10.1016/j.pocean.2011.11.015 eng eng https://pure.qub.ac.uk/en/publications/41ecec3d-d8af-4ce5-9fa8-89f4929a8671 info:eu-repo/semantics/restrictedAccess Alheit , J , Pohlmann , T , Casini , M , Greve , W , Hinrichs , R , Mathis , M , O'Driscoll , K , Vorberg , R & Wagner , C 2012 , ' Climate variability drives anchovies and sardines into the North and Baltic Seas ' , Progress In Oceanography , vol. 96 , no. 1 , pp. 128-139 . https://doi.org/10.1016/j.pocean.2011.11.015 /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action article 2012 ftqueensubelpubl https://doi.org/10.1016/j.pocean.2011.11.015 2024-07-22T23:44:20Z European anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) are southern, warm water species that prefer temperatures warmer than those found in boreal waters. After about 40 years of absence, they were again observed in the 1990s in increasing quantities in the North Sea and the Baltic Sea. Whereas global warming probably played a role in these northward migrations, the North Atlantic Oscillation (NAO), the Atlantic Multidecadal Oscillation (AMO) and the contraction of the subpolar gyre were important influences. Sardine re-invaded the North Sea around 1990, probably mainly as a response to warmer temperatures associated with the strengthening of the NAO in the late 1980s. However, increasing numbers of anchovy eggs, larvae, juveniles and adults have been recorded only since the mid-1990s, when, particularly, summer temperatures started to increase. This is probably a result of the complex dynamics of ocean–atmosphere coupling involving changes in North Atlantic current structures, such as the contraction of the subpolar gyre, and dynamics of AMO. Apparently, climate variability drives anchovies and sardines into the North and Baltic Seas. Here, we elucidate the climatic background of the return of anchovies and sardines to the northern European shelf seas and the changes in the North Sea fish community in the mid-1990s in response to climate variability. Article in Journal/Newspaper north atlantic current North Atlantic North Atlantic oscillation Queen's University Belfast Research Portal Progress in Oceanography 96 1 128 139
institution Open Polar
collection Queen's University Belfast Research Portal
op_collection_id ftqueensubelpubl
language English
topic /dk/atira/pure/sustainabledevelopmentgoals/climate_action
name=SDG 13 - Climate Action
spellingShingle /dk/atira/pure/sustainabledevelopmentgoals/climate_action
name=SDG 13 - Climate Action
Alheit, Juergen
Pohlmann, Thomas
Casini, Michele
Greve, Wulf
Hinrichs, Rosemarie
Mathis, Moritz
O'Driscoll, Kieran
Vorberg, Ralf
Wagner, Carola
Climate variability drives anchovies and sardines into the North and Baltic Seas
topic_facet /dk/atira/pure/sustainabledevelopmentgoals/climate_action
name=SDG 13 - Climate Action
description European anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) are southern, warm water species that prefer temperatures warmer than those found in boreal waters. After about 40 years of absence, they were again observed in the 1990s in increasing quantities in the North Sea and the Baltic Sea. Whereas global warming probably played a role in these northward migrations, the North Atlantic Oscillation (NAO), the Atlantic Multidecadal Oscillation (AMO) and the contraction of the subpolar gyre were important influences. Sardine re-invaded the North Sea around 1990, probably mainly as a response to warmer temperatures associated with the strengthening of the NAO in the late 1980s. However, increasing numbers of anchovy eggs, larvae, juveniles and adults have been recorded only since the mid-1990s, when, particularly, summer temperatures started to increase. This is probably a result of the complex dynamics of ocean–atmosphere coupling involving changes in North Atlantic current structures, such as the contraction of the subpolar gyre, and dynamics of AMO. Apparently, climate variability drives anchovies and sardines into the North and Baltic Seas. Here, we elucidate the climatic background of the return of anchovies and sardines to the northern European shelf seas and the changes in the North Sea fish community in the mid-1990s in response to climate variability.
format Article in Journal/Newspaper
author Alheit, Juergen
Pohlmann, Thomas
Casini, Michele
Greve, Wulf
Hinrichs, Rosemarie
Mathis, Moritz
O'Driscoll, Kieran
Vorberg, Ralf
Wagner, Carola
author_facet Alheit, Juergen
Pohlmann, Thomas
Casini, Michele
Greve, Wulf
Hinrichs, Rosemarie
Mathis, Moritz
O'Driscoll, Kieran
Vorberg, Ralf
Wagner, Carola
author_sort Alheit, Juergen
title Climate variability drives anchovies and sardines into the North and Baltic Seas
title_short Climate variability drives anchovies and sardines into the North and Baltic Seas
title_full Climate variability drives anchovies and sardines into the North and Baltic Seas
title_fullStr Climate variability drives anchovies and sardines into the North and Baltic Seas
title_full_unstemmed Climate variability drives anchovies and sardines into the North and Baltic Seas
title_sort climate variability drives anchovies and sardines into the north and baltic seas
publishDate 2012
url https://pure.qub.ac.uk/en/publications/41ecec3d-d8af-4ce5-9fa8-89f4929a8671
https://doi.org/10.1016/j.pocean.2011.11.015
genre north atlantic current
North Atlantic
North Atlantic oscillation
genre_facet north atlantic current
North Atlantic
North Atlantic oscillation
op_source Alheit , J , Pohlmann , T , Casini , M , Greve , W , Hinrichs , R , Mathis , M , O'Driscoll , K , Vorberg , R & Wagner , C 2012 , ' Climate variability drives anchovies and sardines into the North and Baltic Seas ' , Progress In Oceanography , vol. 96 , no. 1 , pp. 128-139 . https://doi.org/10.1016/j.pocean.2011.11.015
op_relation https://pure.qub.ac.uk/en/publications/41ecec3d-d8af-4ce5-9fa8-89f4929a8671
op_rights info:eu-repo/semantics/restrictedAccess
op_doi https://doi.org/10.1016/j.pocean.2011.11.015
container_title Progress in Oceanography
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