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dc.contributor.author
Diaz Jaramillo, Mauricio Javier  
dc.contributor.author
Muñoz , Claudia  
dc.contributor.author
Rudolph, Ignacio  
dc.contributor.author
Servos, Mark  
dc.contributor.author
Barra, Ricardo  
dc.date.available
2017-09-26T15:24:12Z  
dc.date.issued
2013-01-01  
dc.identifier.citation
Diaz Jaramillo, Mauricio Javier; Muñoz , Claudia; Rudolph, Ignacio; Servos, Mark; Barra, Ricardo; Seasonal mercury concentrations and δ15N and δ13C values of benthic macroinvertebrates and sediments from a historically polluted estuary in south central Chile; Elsevier Science; Science of the Total Environment; 442; 1-1-2013; 198-206  
dc.identifier.issn
0048-9697  
dc.identifier.uri
http://hdl.handle.net/11336/25107  
dc.description.abstract
The Lenga Estuary is one of the most industrialized sites in south central Chile where the historic operation of chlor-alkali plants resulted in large quantities of mercury (Hg) being deposited into the estuary. This historical contamination may still represent a risk to the biota in the estuary. To investigate this four macroinvertebrates, Neotrypaea uncinata (ghostshrimp), Elminius kingii (barnacle), Hemigrapsus crenulatus (shore crab) and Perinereis gualpensis (ragworm) were collected seasonally from three different sites in the Lenga Estuary and one in a reference estuary (Tubul Estuary), and analyzed for Hg and stable isotopes (δ15N and δ13C). Mercury concentrations in Lenga sediments ranged from 0.4 ± 0.1 to 13 ± 3 mg/kg, while those in Tubul sediments ranged from 0.02 ± 0.01 to 0.07 ± 0.09 mg/kg. Total Hg concentrations of invertebrates were significantly different between estuaries (p < 0.05), but not by species or season for each estuary (p > 0.05). In contrast, organic Hg concentrations were different by species and season with shore crab muscle tissues exhibiting the greatest percent difference. Site-specific relationships demonstrated that total Hg concentrations in ragworm best reflected the total Hg sediment mercury concentrations. Signatures of δ13C were correlated to the organic Hg % rather than total Hg. This suggests that organic Hg concentrations in these species were related to the carbon sources.  
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-sa/2.5/ar/  
dc.subject
Mercury  
dc.subject
Organic Mercury  
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Stable Isotopes  
dc.subject
Estuary  
dc.subject
Invertebrates  
dc.subject.classification
Oceanografía, Hidrología, Recursos Hídricos  
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Seasonal mercury concentrations and δ15N and δ13C values of benthic macroinvertebrates and sediments from a historically polluted estuary in south central Chile  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-09-21T18:01:52Z  
dc.journal.volume
442  
dc.journal.pagination
198-206  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Diaz Jaramillo, Mauricio Javier. Universidad de Concepción; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Muñoz , Claudia. Universidad de Concepción; Chile  
dc.description.fil
Fil: Rudolph, Ignacio. Universidad de Concepción; Chile  
dc.description.fil
Fil: Servos, Mark. University Of Waterloo; Canadá  
dc.description.fil
Fil: Barra, Ricardo. Universidad de Concepción; Chile  
dc.journal.title
Science of the Total Environment  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0048969712013216  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.scitotenv.2012.10.039