Krill as a central node for iron cycling in the Southern Ocean
In order to establish the potential role of Antarctic krill (Euphausia superba) in the recycling of bioactive elements, we have quantified the release of iron, phosphate, and ammonia by these organisms along the Antarctic Peninsula sector of the Southern Ocean. The experimental results suggested tha...
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Online Access: | http://hdl.handle.net/10553/12826 https://doi.org/10.1029/2006GL029096 |
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ftunivlaspalmas:oai:accedacris.ulpgc.es:10553/12826 2023-05-15T14:06:26+02:00 Krill as a central node for iron cycling in the Southern Ocean Tovar Sánchez, A. Duarte, Carlos M. Hernández-León, S. Sañudo Wilhelmy, S. A. 6602867315 55636631300 6701465678 7003950941 5950545 20777 489706 357557 WOS:Tovar-Sanchez, A WOS:Duarte, CM WOS:Hernandez-Leon, S WOS:Sanudo-Wilhelmy, SA BU-BAS 2015-02-14T03:31:53Z application/pdf http://hdl.handle.net/10553/12826 https://doi.org/10.1029/2006GL029096 eng eng Geophysical Research Letters 34 0094-8276 http://hdl.handle.net/10553/12826 doi:10.1029/2006GL029096 34547995001 000246939800002 585966 Sí by-nc-nd info:eu-repo/semantics/openAccess CC-BY-NC-ND Geophysical Research Letters [ISSN 0094-8276], v. 34 (11), L11601, (Junio 2007) 251001 Oceanografía biológica Antarctic Krill Euphausia-Superba Sea Zooplankton Ecosystems Excretion Discovery Behavior Ammonia Pellets info:eu-repo/semantics/article Article 2015 ftunivlaspalmas https://doi.org/10.1029/2006GL029096 2022-03-02T00:08:57Z In order to establish the potential role of Antarctic krill (Euphausia superba) in the recycling of bioactive elements, we have quantified the release of iron, phosphate, and ammonia by these organisms along the Antarctic Peninsula sector of the Southern Ocean. The experimental results suggested that the presence of krill has a significant impact on ambient iron concentrations, as large amounts of this trace element were released by the krill (22–689 nmol Fe g Dry Weight_1 h_1, equivalent to 0.2 to 4.3 nmol Fe L_1 d_1). Half of this iron release occurred within the first hour of the experiment, and differences in iron and phosphate release rates (3.1 to 14.0 _mol PO43_ g DW_1 h_1) seemed to reflect differences in food availability. These results identify krill as a major node in iron cycling in the Southern Ocean, potentially influencing iron residence time in the upper water column of this region. 4 2,744 Q1 SCIE Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Antarctic Peninsula Euphausia superba Southern Ocean Universidad de Las Palmas de Gran Canaria: Acceda Antarctic Antarctic Peninsula Southern Ocean The Antarctic Geophysical Research Letters 32 11 |
institution |
Open Polar |
collection |
Universidad de Las Palmas de Gran Canaria: Acceda |
op_collection_id |
ftunivlaspalmas |
language |
English |
topic |
251001 Oceanografía biológica Antarctic Krill Euphausia-Superba Sea Zooplankton Ecosystems Excretion Discovery Behavior Ammonia Pellets |
spellingShingle |
251001 Oceanografía biológica Antarctic Krill Euphausia-Superba Sea Zooplankton Ecosystems Excretion Discovery Behavior Ammonia Pellets Tovar Sánchez, A. Duarte, Carlos M. Hernández-León, S. Sañudo Wilhelmy, S. A. Krill as a central node for iron cycling in the Southern Ocean |
topic_facet |
251001 Oceanografía biológica Antarctic Krill Euphausia-Superba Sea Zooplankton Ecosystems Excretion Discovery Behavior Ammonia Pellets |
description |
In order to establish the potential role of Antarctic krill (Euphausia superba) in the recycling of bioactive elements, we have quantified the release of iron, phosphate, and ammonia by these organisms along the Antarctic Peninsula sector of the Southern Ocean. The experimental results suggested that the presence of krill has a significant impact on ambient iron concentrations, as large amounts of this trace element were released by the krill (22–689 nmol Fe g Dry Weight_1 h_1, equivalent to 0.2 to 4.3 nmol Fe L_1 d_1). Half of this iron release occurred within the first hour of the experiment, and differences in iron and phosphate release rates (3.1 to 14.0 _mol PO43_ g DW_1 h_1) seemed to reflect differences in food availability. These results identify krill as a major node in iron cycling in the Southern Ocean, potentially influencing iron residence time in the upper water column of this region. 4 2,744 Q1 SCIE |
author2 |
6602867315 55636631300 6701465678 7003950941 5950545 20777 489706 357557 WOS:Tovar-Sanchez, A WOS:Duarte, CM WOS:Hernandez-Leon, S WOS:Sanudo-Wilhelmy, SA BU-BAS |
format |
Article in Journal/Newspaper |
author |
Tovar Sánchez, A. Duarte, Carlos M. Hernández-León, S. Sañudo Wilhelmy, S. A. |
author_facet |
Tovar Sánchez, A. Duarte, Carlos M. Hernández-León, S. Sañudo Wilhelmy, S. A. |
author_sort |
Tovar Sánchez, A. |
title |
Krill as a central node for iron cycling in the Southern Ocean |
title_short |
Krill as a central node for iron cycling in the Southern Ocean |
title_full |
Krill as a central node for iron cycling in the Southern Ocean |
title_fullStr |
Krill as a central node for iron cycling in the Southern Ocean |
title_full_unstemmed |
Krill as a central node for iron cycling in the Southern Ocean |
title_sort |
krill as a central node for iron cycling in the southern ocean |
publishDate |
2015 |
url |
http://hdl.handle.net/10553/12826 https://doi.org/10.1029/2006GL029096 |
geographic |
Antarctic Antarctic Peninsula Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Euphausia superba Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Euphausia superba Southern Ocean |
op_source |
Geophysical Research Letters [ISSN 0094-8276], v. 34 (11), L11601, (Junio 2007) |
op_relation |
Geophysical Research Letters 34 0094-8276 http://hdl.handle.net/10553/12826 doi:10.1029/2006GL029096 34547995001 000246939800002 585966 Sí |
op_rights |
by-nc-nd info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1029/2006GL029096 |
container_title |
Geophysical Research Letters |
container_volume |
32 |
container_issue |
11 |
_version_ |
1766278143228772352 |