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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Nature Research
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Online Access: | https://oceanrep.geomar.de/id/eprint/46890/ https://oceanrep.geomar.de/id/eprint/46890/1/srep27234.pdf https://oceanrep.geomar.de/id/eprint/46890/2/srep27234-s2.pdf https://oceanrep.geomar.de/id/eprint/46890/3/srep27234-s1.mov https://doi.org/10.1038/srep27234 |
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ftoceanrep:oai:oceanrep.geomar.de:46890 2023-05-15T14:10:37+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 text video https://oceanrep.geomar.de/id/eprint/46890/ https://oceanrep.geomar.de/id/eprint/46890/1/srep27234.pdf https://oceanrep.geomar.de/id/eprint/46890/2/srep27234-s2.pdf https://oceanrep.geomar.de/id/eprint/46890/3/srep27234-s1.mov https://doi.org/10.1038/srep27234 en eng Nature Research https://oceanrep.geomar.de/id/eprint/46890/1/srep27234.pdf https://oceanrep.geomar.de/id/eprint/46890/2/srep27234-s2.pdf https://oceanrep.geomar.de/id/eprint/46890/3/srep27234-s1.mov Fuentes, V., Alurralde, G., Meyer, B., Aguirre, G. E., Canepa, A., Wölfl, A. C. , Hass, H. C., Williams, G. N. and Schloss, I. R. (2016) Glacial melting: an overlooked threat to Antarctic krill. Open Access Scientific Reports, 6 (27234). DOI 10.1038/srep27234 <https://doi.org/10.1038/srep27234>. doi:10.1038/srep27234 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2016 ftoceanrep https://doi.org/10.1038/srep27234 2023-04-07T15:45:55Z 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 OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Antarctic Potter Cove Scientific Reports 6 1 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
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, Verónica Alurralde, Gastón Meyer, Bettina Aguirre, Gastón E. Canepa, Antonio Wölfl, Anne-Cathrin Hass, H. Christian Williams, Gabriela N. Schloss, Irene R. |
spellingShingle |
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 |
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 Research |
publishDate |
2016 |
url |
https://oceanrep.geomar.de/id/eprint/46890/ https://oceanrep.geomar.de/id/eprint/46890/1/srep27234.pdf https://oceanrep.geomar.de/id/eprint/46890/2/srep27234-s2.pdf https://oceanrep.geomar.de/id/eprint/46890/3/srep27234-s1.mov 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 |
https://oceanrep.geomar.de/id/eprint/46890/1/srep27234.pdf https://oceanrep.geomar.de/id/eprint/46890/2/srep27234-s2.pdf https://oceanrep.geomar.de/id/eprint/46890/3/srep27234-s1.mov Fuentes, V., Alurralde, G., Meyer, B., Aguirre, G. E., Canepa, A., Wölfl, A. C. , Hass, H. C., Williams, G. N. and Schloss, I. R. (2016) Glacial melting: an overlooked threat to Antarctic krill. Open Access Scientific Reports, 6 (27234). DOI 10.1038/srep27234 <https://doi.org/10.1038/srep27234>. doi:10.1038/srep27234 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/srep27234 |
container_title |
Scientific Reports |
container_volume |
6 |
container_issue |
1 |
_version_ |
1766282701151666176 |