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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ftawi:oai:epic.awi.de:41012 2024-09-09T19:12:01+00:00 Glacial melting: an overlooked threat to Antarctic krill Fuentes, Veronica Alurralde, Gaston Meyer, Bettina Aguirre, Gaston E. Canepa, Anonio Wölfl, Anne-Cathrin Hass, Christian Williams, Gabriela N. Schloss, Irene 2016-06-02 application/pdf https://epic.awi.de/id/eprint/41012/ https://epic.awi.de/id/eprint/41012/1/Fuentesetal2016.pdf https://hdl.handle.net/10013/epic.47981 https://hdl.handle.net/10013/epic.47981.d001 unknown www.nature.com/scientificreports https://epic.awi.de/id/eprint/41012/1/Fuentesetal2016.pdf https://hdl.handle.net/10013/epic.47981.d001 Fuentes, V. , Alurralde, G. , Meyer, B. orcid:0000-0001-6804-9896 , Aguirre, G. E. , Canepa, A. , Wölfl, A. C. , Hass, C. orcid:0000-0003-2649-6828 , Williams, G. N. and Schloss, I. (2016) Glacial melting: an overlooked threat to Antarctic krill , Scientific Reports, Nature, 6 . doi:10.1038/srep27234 <https://doi.org/10.1038/srep27234> , hdl:10013/epic.47981 EPIC3Scientific Reports, Nature, www.nature.com/scientificreports, 6 Article isiRev 2016 ftawi https://doi.org/10.1038/srep27234 2024-06-24T04:14:20Z 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. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Antarctica Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Potter Cove Scientific Reports 6 1 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
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 |
Article in Journal/Newspaper |
author |
Fuentes, Veronica Alurralde, Gaston Meyer, Bettina Aguirre, Gaston E. Canepa, Anonio Wölfl, Anne-Cathrin Hass, Christian Williams, Gabriela N. Schloss, Irene |
spellingShingle |
Fuentes, Veronica Alurralde, Gaston Meyer, Bettina Aguirre, Gaston E. Canepa, Anonio Wölfl, Anne-Cathrin Hass, Christian Williams, Gabriela N. Schloss, Irene Glacial melting: an overlooked threat to Antarctic krill |
author_facet |
Fuentes, Veronica Alurralde, Gaston Meyer, Bettina Aguirre, Gaston E. Canepa, Anonio Wölfl, Anne-Cathrin Hass, Christian Williams, Gabriela N. Schloss, Irene |
author_sort |
Fuentes, Veronica |
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 |
www.nature.com/scientificreports |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/41012/ https://epic.awi.de/id/eprint/41012/1/Fuentesetal2016.pdf https://hdl.handle.net/10013/epic.47981 https://hdl.handle.net/10013/epic.47981.d001 |
geographic |
Antarctic Potter Cove |
geographic_facet |
Antarctic Potter Cove |
genre |
Antarc* Antarctic Antarctic Krill Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctica |
op_source |
EPIC3Scientific Reports, Nature, www.nature.com/scientificreports, 6 |
op_relation |
https://epic.awi.de/id/eprint/41012/1/Fuentesetal2016.pdf https://hdl.handle.net/10013/epic.47981.d001 Fuentes, V. , Alurralde, G. , Meyer, B. orcid:0000-0001-6804-9896 , Aguirre, G. E. , Canepa, A. , Wölfl, A. C. , Hass, C. orcid:0000-0003-2649-6828 , Williams, G. N. and Schloss, I. (2016) Glacial melting: an overlooked threat to Antarctic krill , Scientific Reports, Nature, 6 . doi:10.1038/srep27234 <https://doi.org/10.1038/srep27234> , hdl:10013/epic.47981 |
op_doi |
https://doi.org/10.1038/srep27234 |
container_title |
Scientific Reports |
container_volume |
6 |
container_issue |
1 |
_version_ |
1809752430611529728 |