Diel vertical migration of zooplankton in the northeast Atlantic
Acoustic Doppler current profiler (ADCP) data collected during August-September 1991 reveal the diel migration of Zooplankton in the northeast Atlantic (50-60°N, 10-40°W). Volume scattering strength has been calculated, from which the speed and depth of migrations have been studied. There are usuall...
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1996
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Online Access: | https://ueaeprints.uea.ac.uk/id/eprint/75240/ https://doi.org/10.1093/plankt/18.2.163 |
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ftuniveastangl:oai:ueaeprints.uea.ac.uk:75240 2023-05-15T17:41:10+02:00 Diel vertical migration of zooplankton in the northeast Atlantic Heywood, Karen J. 1996-02 https://ueaeprints.uea.ac.uk/id/eprint/75240/ https://doi.org/10.1093/plankt/18.2.163 unknown Heywood, Karen J. (1996) Diel vertical migration of zooplankton in the northeast Atlantic. Journal of Plankton Research, 18 (2). pp. 163-184. ISSN 0142-7873 doi:10.1093/plankt/18.2.163 Article PeerReviewed 1996 ftuniveastangl https://doi.org/10.1093/plankt/18.2.163 2023-03-23T23:32:36Z Acoustic Doppler current profiler (ADCP) data collected during August-September 1991 reveal the diel migration of Zooplankton in the northeast Atlantic (50-60°N, 10-40°W). Volume scattering strength has been calculated, from which the speed and depth of migrations have been studied. There are usually at least two layers displaying nocturnal migration, one spending the day at depths of 300-400 m and the other at depths of 50-100 m. Reverse migrations are also found to be a common occurrence in the region studied. Usually, a surface layer begins to descend at dusk as soon as the upward migrating layer arrives in surface waters. Vertical velocity measured from the ADCP provides the first detailed direct measurements of the swimming speeds of the populations in situ, which are generally between 2 and 6 cm s-1. Migrating animals within layers do not move in unison; the animals at the leading edge are moving back towards the centre of the layer. Article in Journal/Newspaper Northeast Atlantic University of East Anglia: UEA Digital Repository Journal of Plankton Research 18 2 163 184 |
institution |
Open Polar |
collection |
University of East Anglia: UEA Digital Repository |
op_collection_id |
ftuniveastangl |
language |
unknown |
description |
Acoustic Doppler current profiler (ADCP) data collected during August-September 1991 reveal the diel migration of Zooplankton in the northeast Atlantic (50-60°N, 10-40°W). Volume scattering strength has been calculated, from which the speed and depth of migrations have been studied. There are usually at least two layers displaying nocturnal migration, one spending the day at depths of 300-400 m and the other at depths of 50-100 m. Reverse migrations are also found to be a common occurrence in the region studied. Usually, a surface layer begins to descend at dusk as soon as the upward migrating layer arrives in surface waters. Vertical velocity measured from the ADCP provides the first detailed direct measurements of the swimming speeds of the populations in situ, which are generally between 2 and 6 cm s-1. Migrating animals within layers do not move in unison; the animals at the leading edge are moving back towards the centre of the layer. |
format |
Article in Journal/Newspaper |
author |
Heywood, Karen J. |
spellingShingle |
Heywood, Karen J. Diel vertical migration of zooplankton in the northeast Atlantic |
author_facet |
Heywood, Karen J. |
author_sort |
Heywood, Karen J. |
title |
Diel vertical migration of zooplankton in the northeast Atlantic |
title_short |
Diel vertical migration of zooplankton in the northeast Atlantic |
title_full |
Diel vertical migration of zooplankton in the northeast Atlantic |
title_fullStr |
Diel vertical migration of zooplankton in the northeast Atlantic |
title_full_unstemmed |
Diel vertical migration of zooplankton in the northeast Atlantic |
title_sort |
diel vertical migration of zooplankton in the northeast atlantic |
publishDate |
1996 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/75240/ https://doi.org/10.1093/plankt/18.2.163 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_relation |
Heywood, Karen J. (1996) Diel vertical migration of zooplankton in the northeast Atlantic. Journal of Plankton Research, 18 (2). pp. 163-184. ISSN 0142-7873 doi:10.1093/plankt/18.2.163 |
op_doi |
https://doi.org/10.1093/plankt/18.2.163 |
container_title |
Journal of Plankton Research |
container_volume |
18 |
container_issue |
2 |
container_start_page |
163 |
op_container_end_page |
184 |
_version_ |
1766142520662687744 |