The migration behaviour of European silver eels (Anguilla anguilla) released in open ocean conditions
Despite some recent progress, there are still large gaps of knowledge about migration routes and behaviour of European eels, Anguilla anguilla, during their long-distance oceanic migration. To achieve a better understanding of the migration behaviour, 28 large female silver eels were equipped with p...
Published in: | Marine and Freshwater Research |
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2015
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ftopenagrar:oai:www.openagrar.de:timport_mods_00029331 2023-05-15T13:27:07+02:00 The migration behaviour of European silver eels (Anguilla anguilla) released in open ocean conditions Wysujack, Klaus Westerberg, Hakan Aarestrup, Kim Trautner, Jochen Kurwie, Tagried Nagel, Florian Hanel, Reinhold 2015 12 https://doi.org/10.1071/MF14023 https://www.openagrar.de/receive/timport_mods_00029331 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00029331/dn054149.pdf eng eng Marine and freshwater research : an international journal for the publication of original contributions in marine, estuarine or freshwater research -- Mar Freshwater Res -- 1323-1650 -- 1283028-8 https://doi.org/DOI:10.1071/MF14023 https://www.openagrar.de/receive/timport_mods_00029331 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00029331/dn054149.pdf only signed in user info:eu-repo/semantics/openAccess Text diel vertical movements pop-up satellite tags spawning migration article Text 2015 ftopenagrar https://doi.org/10.1071/MF14023 2023-03-06T00:05:44Z Despite some recent progress, there are still large gaps of knowledge about migration routes and behaviour of European eels, Anguilla anguilla, during their long-distance oceanic migration. To achieve a better understanding of the migration behaviour, 28 large female silver eels were equipped with pop-up satellite transmitters and released at three different locations in the north-eastern Atlantic Ocean and in the Sargasso Sea. The study covers tracking periods between 7 and 92 days. The distance between release point and estimated pop-up position ranged from 40 to 1000 km, the mean minimum migration speeds from 1.5 to 17.0 km day -1. The eels consistently conducted distinct diel vertical movements (DVM) with daily amplitudes of more than 300m and maximum diving depths of more than 1000 m. Eels released in the Sargasso Sea used greater depths and a broader temperature range than individuals released in the Atlantic Ocean closer to the European continent. At least two eels were clearly preyed upon. The transmitters ascended in a considerable range of directions from the release points. Hence, the results of the study did not allow clear conclusions about the detailed location of the spawning site and on the routes of the eels to the spawning grounds. Article in Journal/Newspaper Anguilla anguilla OpenAgrar (OA) Marine and Freshwater Research 66 2 145 |
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Open Polar |
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language |
English |
topic |
Text diel vertical movements pop-up satellite tags spawning migration |
spellingShingle |
Text diel vertical movements pop-up satellite tags spawning migration Wysujack, Klaus Westerberg, Hakan Aarestrup, Kim Trautner, Jochen Kurwie, Tagried Nagel, Florian Hanel, Reinhold The migration behaviour of European silver eels (Anguilla anguilla) released in open ocean conditions |
topic_facet |
Text diel vertical movements pop-up satellite tags spawning migration |
description |
Despite some recent progress, there are still large gaps of knowledge about migration routes and behaviour of European eels, Anguilla anguilla, during their long-distance oceanic migration. To achieve a better understanding of the migration behaviour, 28 large female silver eels were equipped with pop-up satellite transmitters and released at three different locations in the north-eastern Atlantic Ocean and in the Sargasso Sea. The study covers tracking periods between 7 and 92 days. The distance between release point and estimated pop-up position ranged from 40 to 1000 km, the mean minimum migration speeds from 1.5 to 17.0 km day -1. The eels consistently conducted distinct diel vertical movements (DVM) with daily amplitudes of more than 300m and maximum diving depths of more than 1000 m. Eels released in the Sargasso Sea used greater depths and a broader temperature range than individuals released in the Atlantic Ocean closer to the European continent. At least two eels were clearly preyed upon. The transmitters ascended in a considerable range of directions from the release points. Hence, the results of the study did not allow clear conclusions about the detailed location of the spawning site and on the routes of the eels to the spawning grounds. |
format |
Article in Journal/Newspaper |
author |
Wysujack, Klaus Westerberg, Hakan Aarestrup, Kim Trautner, Jochen Kurwie, Tagried Nagel, Florian Hanel, Reinhold |
author_facet |
Wysujack, Klaus Westerberg, Hakan Aarestrup, Kim Trautner, Jochen Kurwie, Tagried Nagel, Florian Hanel, Reinhold |
author_sort |
Wysujack, Klaus |
title |
The migration behaviour of European silver eels (Anguilla anguilla) released in open ocean conditions |
title_short |
The migration behaviour of European silver eels (Anguilla anguilla) released in open ocean conditions |
title_full |
The migration behaviour of European silver eels (Anguilla anguilla) released in open ocean conditions |
title_fullStr |
The migration behaviour of European silver eels (Anguilla anguilla) released in open ocean conditions |
title_full_unstemmed |
The migration behaviour of European silver eels (Anguilla anguilla) released in open ocean conditions |
title_sort |
migration behaviour of european silver eels (anguilla anguilla) released in open ocean conditions |
publishDate |
2015 |
url |
https://doi.org/10.1071/MF14023 https://www.openagrar.de/receive/timport_mods_00029331 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00029331/dn054149.pdf |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_relation |
Marine and freshwater research : an international journal for the publication of original contributions in marine, estuarine or freshwater research -- Mar Freshwater Res -- 1323-1650 -- 1283028-8 https://doi.org/DOI:10.1071/MF14023 https://www.openagrar.de/receive/timport_mods_00029331 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00029331/dn054149.pdf |
op_rights |
only signed in user info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1071/MF14023 |
container_title |
Marine and Freshwater Research |
container_volume |
66 |
container_issue |
2 |
container_start_page |
145 |
_version_ |
1766396502999040000 |