Glacial melting: An overlooked threat to Antarctic krill

Autores
Fuentes, Verónica Lorena; Alurralde, Roque Gastón; Meyer, Bettina; Aguirre, Gaston Ezequiel; Canepa, Antonio; Wölf, Anne Cathrin; Hass, H. Christian; Williams, Gabriela Noemí; Schloss, Irene Ruth
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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 ( > 106μm3), which were most likely mobilized by glacial meltwater. Ongoing climate-induced glacial melting may impact the coastal ecosystems of Antarctica that rely on krill.
Fil: Fuentes, Verónica Lorena. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Alurralde, Roque Gastón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina
Fil: Meyer, Bettina. Helmholtz Centre for Polar and Marine Research. Alfred Wegener Institute; Alemania. University of Oldenburg; Alemania
Fil: Aguirre, Gaston Ezequiel. Helmholtz Centre for Polar and Marine Research. Alfred Wegener Institute; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Canepa, Antonio. Pontificia Universidad Católica de Valparaíso; Chile
Fil: Wölf, Anne Cathrin. Helmholtz Centre for Polar and Marine Research. Alfred Wegener Institute; Alemania
Fil: Hass, H. Christian. Helmholtz Centre for Polar and Marine Research. Alfred Wegener Institute; Alemania
Fil: Williams, Gabriela Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Institut Des Sciences de la Mer de Rimouski; Canadá
Materia
krill
glacial melting
climate change
Antarctica
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/39479
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/39479
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Glacial melting: An overlooked threat to Antarctic krillFuentes, Verónica LorenaAlurralde, Roque GastónMeyer, BettinaAguirre, Gaston EzequielCanepa, AntonioWölf, Anne CathrinHass, H. ChristianWilliams, Gabriela NoemíSchloss, Irene Ruthkrillglacial meltingclimate changeAntarcticahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Strandings 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 ( > 106μm3), which were most likely mobilized by glacial meltwater. Ongoing climate-induced glacial melting may impact the coastal ecosystems of Antarctica that rely on krill.Fil: Fuentes, Verónica Lorena. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Alurralde, Roque Gastón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; ArgentinaFil: Meyer, Bettina. Helmholtz Centre for Polar and Marine Research. Alfred Wegener Institute; Alemania. University of Oldenburg; AlemaniaFil: Aguirre, Gaston Ezequiel. Helmholtz Centre for Polar and Marine Research. Alfred Wegener Institute; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Canepa, Antonio. Pontificia Universidad Católica de Valparaíso; ChileFil: Wölf, Anne Cathrin. Helmholtz Centre for Polar and Marine Research. Alfred Wegener Institute; AlemaniaFil: Hass, H. Christian. Helmholtz Centre for Polar and Marine Research. Alfred Wegener Institute; AlemaniaFil: Williams, Gabriela Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; ArgentinaFil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Institut Des Sciences de la Mer de Rimouski; CanadáNature Publishing Group2016-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/39479Fuentes, Verónica Lorena; Alurralde, Roque Gastón; Meyer, Bettina; Aguirre, Gaston Ezequiel; Canepa, Antonio; et al.; Glacial melting: An overlooked threat to Antarctic krill; Nature Publishing Group; Scientific Reports; 6; 6-2016; 1-122045-2322CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1038/srep27234info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/srep27234info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:22:07Zoai:ri.conicet.gov.ar:11336/39479instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:22:07.678CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Glacial melting: An overlooked threat to Antarctic krill
title Glacial melting: An overlooked threat to Antarctic krill
spellingShingle Glacial melting: An overlooked threat to Antarctic krill
Fuentes, Verónica Lorena
krill
glacial melting
climate change
Antarctica
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
dc.creator.none.fl_str_mv Fuentes, Verónica Lorena
Alurralde, Roque Gastón
Meyer, Bettina
Aguirre, Gaston Ezequiel
Canepa, Antonio
Wölf, Anne Cathrin
Hass, H. Christian
Williams, Gabriela Noemí
Schloss, Irene Ruth
author Fuentes, Verónica Lorena
author_facet Fuentes, Verónica Lorena
Alurralde, Roque Gastón
Meyer, Bettina
Aguirre, Gaston Ezequiel
Canepa, Antonio
Wölf, Anne Cathrin
Hass, H. Christian
Williams, Gabriela Noemí
Schloss, Irene Ruth
author_role author
author2 Alurralde, Roque Gastón
Meyer, Bettina
Aguirre, Gaston Ezequiel
Canepa, Antonio
Wölf, Anne Cathrin
Hass, H. Christian
Williams, Gabriela Noemí
Schloss, Irene Ruth
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv krill
glacial melting
climate change
Antarctica
topic krill
glacial melting
climate change
Antarctica
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv 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 ( > 106μm3), which were most likely mobilized by glacial meltwater. Ongoing climate-induced glacial melting may impact the coastal ecosystems of Antarctica that rely on krill.
Fil: Fuentes, Verónica Lorena. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Alurralde, Roque Gastón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina
Fil: Meyer, Bettina. Helmholtz Centre for Polar and Marine Research. Alfred Wegener Institute; Alemania. University of Oldenburg; Alemania
Fil: Aguirre, Gaston Ezequiel. Helmholtz Centre for Polar and Marine Research. Alfred Wegener Institute; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Canepa, Antonio. Pontificia Universidad Católica de Valparaíso; Chile
Fil: Wölf, Anne Cathrin. Helmholtz Centre for Polar and Marine Research. Alfred Wegener Institute; Alemania
Fil: Hass, H. Christian. Helmholtz Centre for Polar and Marine Research. Alfred Wegener Institute; Alemania
Fil: Williams, Gabriela Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Institut Des Sciences de la Mer de Rimouski; Canadá
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 ( > 106μm3), which were most likely mobilized by glacial meltwater. Ongoing climate-induced glacial melting may impact the coastal ecosystems of Antarctica that rely on krill.
publishDate 2016
dc.date.none.fl_str_mv 2016-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/39479
Fuentes, Verónica Lorena; Alurralde, Roque Gastón; Meyer, Bettina; Aguirre, Gaston Ezequiel; Canepa, Antonio; et al.; Glacial melting: An overlooked threat to Antarctic krill; Nature Publishing Group; Scientific Reports; 6; 6-2016; 1-12
2045-2322
CONICET Digital
CONICET
url http://hdl.handle.net/11336/39479
identifier_str_mv Fuentes, Verónica Lorena; Alurralde, Roque Gastón; Meyer, Bettina; Aguirre, Gaston Ezequiel; Canepa, Antonio; et al.; Glacial melting: An overlooked threat to Antarctic krill; Nature Publishing Group; Scientific Reports; 6; 6-2016; 1-12
2045-2322
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1038/srep27234
info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/srep27234
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Nature Publishing Group
publisher.none.fl_str_mv Nature Publishing Group
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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