Glacial melting: an overlooked threat to Antarctic krill
Strandings of marine animals are relatively common in marine systems. However, the underlying mechanisms are poorly understood. We observed mass strandings of krill in Antarctica that appeared to be linked to the presence of glacial meltwater. Climate-induced glacial meltwater leads to an increased...
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ftpubmed:oai:pubmedcentral.nih.gov:4890292 2023-05-15T14:01:25+02:00 Glacial melting: an overlooked threat to Antarctic krill Fuentes, Verónica Alurralde, Gastón Meyer, Bettina Aguirre, Gastón E. Canepa, Antonio Wölfl, Anne-Cathrin Hass, H. Christian Williams, Gabriela N. Schloss, Irene R. 2016-06-02 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4890292/ http://www.ncbi.nlm.nih.gov/pubmed/27250339 https://doi.org/10.1038/srep27234 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4890292/ http://www.ncbi.nlm.nih.gov/pubmed/27250339 http://dx.doi.org/10.1038/srep27234 Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2016 ftpubmed https://doi.org/10.1038/srep27234 2016-06-12T00:13:33Z Strandings of marine animals are relatively common in marine systems. However, the underlying mechanisms are poorly understood. We observed mass strandings of krill in Antarctica that appeared to be linked to the presence of glacial meltwater. Climate-induced glacial meltwater leads to an increased occurrence of suspended particles in the sea, which is known to affect the physiology of aquatic organisms. Here, we study the effect of suspended inorganic particles on krill in relation to krill mortality events observed in Potter Cove, Antarctica, between 2003 and 2012. The experimental results showed that large quantities of lithogenic particles affected krill feeding, absorption capacity and performance after only 24 h of exposure. Negative effects were related to both the threshold concentrations and the size of the suspended particles. Analysis of the stomach contents of stranded krill showed large quantities of large particles ( > 106 μm3), which were most likely mobilized by glacial meltwater. Ongoing climate-induced glacial melting may impact the coastal ecosystems of Antarctica that rely on krill. Text Antarc* Antarctic Antarctic Krill Antarctica PubMed Central (PMC) Antarctic Potter Cove Scientific Reports 6 1 |
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Article Fuentes, Verónica Alurralde, Gastón Meyer, Bettina Aguirre, Gastón E. Canepa, Antonio Wölfl, Anne-Cathrin Hass, H. Christian Williams, Gabriela N. Schloss, Irene R. Glacial melting: an overlooked threat to Antarctic krill |
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Article |
description |
Strandings of marine animals are relatively common in marine systems. However, the underlying mechanisms are poorly understood. We observed mass strandings of krill in Antarctica that appeared to be linked to the presence of glacial meltwater. Climate-induced glacial meltwater leads to an increased occurrence of suspended particles in the sea, which is known to affect the physiology of aquatic organisms. Here, we study the effect of suspended inorganic particles on krill in relation to krill mortality events observed in Potter Cove, Antarctica, between 2003 and 2012. The experimental results showed that large quantities of lithogenic particles affected krill feeding, absorption capacity and performance after only 24 h of exposure. Negative effects were related to both the threshold concentrations and the size of the suspended particles. Analysis of the stomach contents of stranded krill showed large quantities of large particles ( > 106 μm3), which were most likely mobilized by glacial meltwater. Ongoing climate-induced glacial melting may impact the coastal ecosystems of Antarctica that rely on krill. |
format |
Text |
author |
Fuentes, Verónica Alurralde, Gastón Meyer, Bettina Aguirre, Gastón E. Canepa, Antonio Wölfl, Anne-Cathrin Hass, H. Christian Williams, Gabriela N. Schloss, Irene R. |
author_facet |
Fuentes, Verónica Alurralde, Gastón Meyer, Bettina Aguirre, Gastón E. Canepa, Antonio Wölfl, Anne-Cathrin Hass, H. Christian Williams, Gabriela N. Schloss, Irene R. |
author_sort |
Fuentes, Verónica |
title |
Glacial melting: an overlooked threat to Antarctic krill |
title_short |
Glacial melting: an overlooked threat to Antarctic krill |
title_full |
Glacial melting: an overlooked threat to Antarctic krill |
title_fullStr |
Glacial melting: an overlooked threat to Antarctic krill |
title_full_unstemmed |
Glacial melting: an overlooked threat to Antarctic krill |
title_sort |
glacial melting: an overlooked threat to antarctic krill |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4890292/ http://www.ncbi.nlm.nih.gov/pubmed/27250339 https://doi.org/10.1038/srep27234 |
geographic |
Antarctic Potter Cove |
geographic_facet |
Antarctic Potter Cove |
genre |
Antarc* Antarctic Antarctic Krill Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctica |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4890292/ http://www.ncbi.nlm.nih.gov/pubmed/27250339 http://dx.doi.org/10.1038/srep27234 |
op_rights |
Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/srep27234 |
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Scientific Reports |
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6 |
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1 |
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1766271232243662848 |