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Fuentes, V.; Alurralde, G.; Meyer, B.; Aguirre, G.E.; Canepa, A.; Wölfl, A.-C.; Hass, H.C.; Williams, G.N.; Schloss, I.R. "Glacial melting: An overlooked threat to Antarctic krill" (2016) Scientific Reports. 6
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Abstract:

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.

Registro:

Documento: Artículo
Título:Glacial melting: An overlooked threat to Antarctic krill
Autor:Fuentes, V.; Alurralde, G.; Meyer, B.; Aguirre, G.E.; Canepa, A.; Wölfl, A.-C.; Hass, H.C.; Williams, G.N.; Schloss, I.R.
Filiación:Instituto de Ciencias del Mar (CSIC), Barcelona, Spain
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
Instituto de Diversidad y Ecología Animal (IDEA), CONICET-UNC, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
School of Marine Sciences, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Wadden Sea Research Station, List, Germany
Centro para el Estudio de Sistemas Marinos, Puerto Madryn, Chubut, Argentina
Instituto Antártico Argentino, Buenos Aires, Argentina
Institut des Sciences de la mer de Rimouski, Rimouski, QC, Canada
Palabras clave:Antarctica; aquatic species; coastal waters; deglaciation; Euphausia superba; experimental model; exposure; feeding; mortality; physiology; stomach content
Año:2016
Volumen:6
DOI: http://dx.doi.org/10.1038/srep27234
Título revista:Scientific Reports
Título revista abreviado:Sci. Rep.
ISSN:20452322
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20452322_v6_n_p_Fuentes

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Citas:

---------- APA ----------
Fuentes, V., Alurralde, G., Meyer, B., Aguirre, G.E., Canepa, A., Wölfl, A.-C., Hass, H.C.,..., Schloss, I.R. (2016) . Glacial melting: An overlooked threat to Antarctic krill. Scientific Reports, 6.
http://dx.doi.org/10.1038/srep27234
---------- CHICAGO ----------
Fuentes, V., Alurralde, G., Meyer, B., Aguirre, G.E., Canepa, A., Wölfl, A.-C., et al. "Glacial melting: An overlooked threat to Antarctic krill" . Scientific Reports 6 (2016).
http://dx.doi.org/10.1038/srep27234
---------- MLA ----------
Fuentes, V., Alurralde, G., Meyer, B., Aguirre, G.E., Canepa, A., Wölfl, A.-C., et al. "Glacial melting: An overlooked threat to Antarctic krill" . Scientific Reports, vol. 6, 2016.
http://dx.doi.org/10.1038/srep27234
---------- VANCOUVER ----------
Fuentes, V., Alurralde, G., Meyer, B., Aguirre, G.E., Canepa, A., Wölfl, A.-C., et al. Glacial melting: An overlooked threat to Antarctic krill. Sci. Rep. 2016;6.
http://dx.doi.org/10.1038/srep27234