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dc.contributor.author
Arcagni, Marina
dc.contributor.author
Campbell, Linda
dc.contributor.author
Arribére, María A.
dc.contributor.author
Marvin Dipasquale, Mark
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Rizzo, Andrea Paula
dc.contributor.author
Ribeiro Guevara, Sergio
dc.date.available
2017-01-10T19:55:34Z
dc.date.issued
2013-06
dc.identifier.citation
Arcagni, Marina; Campbell, Linda; Arribére, María A.; Marvin Dipasquale, Mark; Rizzo, Andrea Paula; et al.; Differential mercury transfer in the aquatic food web of a double basined lake associated with selenium and habitat; Elsevier Science; Science of the Total Environment; 454-455; 6-2013; 170-180
dc.identifier.issn
0048-9697
dc.identifier.uri
http://hdl.handle.net/11336/11074
dc.description.abstract
Food web trophodynamics of total mercury (THg) and selenium (Se) were assessed for the double-basined ultraoligotrophic system of Lake Moreno, Patagonia. Each basin has differing proportions of littoral and pelagic habitats, thereby providing an opportunity to assess the importance of habitat (e.g. food web structure or benthic MeHg production) in the transfer of Hg and Se to top trophic fish species. Pelagic plankton, analyzed in three size classes (10–53, 53–200, and >200 μm), had very high [THg], exceeding 200 μg g−1 dry weight (DW) in the smallest, and a low ratio of MeHg to THg (0.1 to 3%). In contrast, [THg] in littoral macroinvertebrates showed lower values (0.3 to 1.8 μg g−1 DW). Juvenile and small fish species feeding upon plankton had higher [THg] (0.2 to 8 μg g−1 muscle DW) compared to large piscivore fish species (0.1 to 1.6 μg g−1 muscle DW). Selenium concentrations exhibited a much narrower variation range than THg in the food web, varying from 0.5 to 2.7 μg g−1 DW. Molar Se:Hg ratios exceeded 1 for the majority of organisms in both basins, with most ratios exceeding 10.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Mercury
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Selenium
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Freshwater Food Web
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Lake Moreno
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Patagonia
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Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
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Biología Marina, Limnología
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Differential mercury transfer in the aquatic food web of a double basined lake associated with selenium and habitat
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-01-06T20:02:45Z
dc.journal.volume
454-455
dc.journal.pagination
170-180
dc.journal.pais
Países Bajos
dc.journal.ciudad
Ámsterdam
dc.description.fil
Fil: Arcagni, Marina. Comision Nacional de Energia Atomica. Gerencia D/area de Energia Nuclear. Unidad de Actividad de Ingenieria Nuclear. Laboratorio de Analisis Por Activacion Neutronica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Campbell, Linda. Saint Mary's University; Canadá
dc.description.fil
Fil: Arribére, María A.. Comision Nacional de Energia Atomica. Gerencia D/area de Energia Nuclear. Unidad de Actividad de Ingenieria Nuclear. Laboratorio de Analisis Por Activacion Neutronica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; Argentina
dc.description.fil
Fil: Marvin Dipasquale, Mark. United States Geological Survey; Estados Unidos
dc.description.fil
Fil: Rizzo, Andrea Paula. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comision Nacional de Energia Atomica. Gerencia D/area de Energia Nuclear. Unidad de Actividad de Ingenieria Nuclear. Laboratorio de Analisis Por Activacion Neutronica; Argentina
dc.description.fil
Fil: Ribeiro Guevara, Sergio. Comision Nacional de Energia Atomica. Gerencia D/area de Energia Nuclear. Unidad de Actividad de Ingenieria Nuclear. Laboratorio de Analisis Por Activacion Neutronica; Argentina
dc.journal.title
Science of the Total Environment
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0048969713002994
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.scitotenv.2013.03.008
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