Toxicity of seabird guano to sea urchin embryos and interaction with Cu and Pb

10 páginas, 3 figuras, 3 tablas

Detalles Bibliográficos
Autores: Rial, Diego, Santos-Echeandía, Juan, Álvarez-Salgado, Xosé Antón, Jordi, Antoni, Tovar-Sánchez, Antonio, Bellas, Juan
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/130957
Acceso en línea:http://hdl.handle.net/10261/130957
Access Level:acceso abierto
Palabra clave:Antagonisms
Joint toxicity
Response surface
Sea urchin embryo
Seabird guano
Trace metals
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spelling Toxicity of seabird guano to sea urchin embryos and interaction with Cu and PbRial, DiegoSantos-Echeandía, JuanÁlvarez-Salgado, Xosé AntónJordi, AntoniTovar-Sánchez, AntonioBellas, JuanAntagonismsJoint toxicityResponse surfaceSea urchin embryoSeabird guanoTrace metals10 páginas, 3 figuras, 3 tablasGuano is an important source of marine-derived nutrients to seabird nesting areas. Seabirds usually present high levels of metals and other contaminants because the bioaccumulation processes and biotic depositions can increase the concentration of pollutants in the receiving environments. The objectives of this study were to investigate: the toxicity of seabird guano and the joint toxicity of guano, Cu and Pb by using the sea urchin embryo-larval bioassay. In a first experiment, aqueous extracts of guano were prepared at two loading rates (0.462 and 1.952 g L−1) and toxicity to sea-urchin embryos was tested. Toxicity was low and not dependent of the load of guano used (EC50 0.42 ± 0.03 g L−1). Trace metal concentrations were also low either in guano or in aqueous extracts of guano and the toxicity of extracts were apparently related to dissolved organic matter. In a second experiment, the toxicity of Cu–Pb mixtures in artificial seawater and in extracts of guano (at two loadings: 0.015 and 0.073 g L−1), was tested. According to individual fittings, Cu added to extracts of guano showed less toxicity than when dissolved in artificial seawater. The response surfaces obtained for mixtures of Cu and Pb in artificial seawater, and in 0.015 g L−1 and 0.073 g L−1 of guano, were better described by Independent Action model adapted to describe antagonism, than by the other proposed models. This implied accepting that EC50 for Cu and Pb increased with the load of guano and with a greater interaction for Cu than for PbThis work was partly supported by the Spanish Ministry of Agriculture, Food and Environment Grant PN384/2011. Diego Rial was funded by a postdoctoral contract from the Xunta de Galicia, Spain (ED481B 2014/098-0 Plan I2C). The work of A.J. was supported by a Ramón y Cajal grant from the Spanish Ministry of Economy and Competitiveness. The CSIC, under the program JAE (Junta para la Ampliación de Estudios) co-funded by the Fondo Social Europeo (FSE), is greatly acknowledge for the post-doctoral fellowships to J. Santos-EcheandíaPeer reviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201620162016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/130957reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.chemosphere.2015.11.064Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1309572026-05-22T06:33:51Z
dc.title.none.fl_str_mv Toxicity of seabird guano to sea urchin embryos and interaction with Cu and Pb
title Toxicity of seabird guano to sea urchin embryos and interaction with Cu and Pb
spellingShingle Toxicity of seabird guano to sea urchin embryos and interaction with Cu and Pb
Rial, Diego
Antagonisms
Joint toxicity
Response surface
Sea urchin embryo
Seabird guano
Trace metals
title_short Toxicity of seabird guano to sea urchin embryos and interaction with Cu and Pb
title_full Toxicity of seabird guano to sea urchin embryos and interaction with Cu and Pb
title_fullStr Toxicity of seabird guano to sea urchin embryos and interaction with Cu and Pb
title_full_unstemmed Toxicity of seabird guano to sea urchin embryos and interaction with Cu and Pb
title_sort Toxicity of seabird guano to sea urchin embryos and interaction with Cu and Pb
dc.creator.none.fl_str_mv Rial, Diego
Santos-Echeandía, Juan
Álvarez-Salgado, Xosé Antón
Jordi, Antoni
Tovar-Sánchez, Antonio
Bellas, Juan
author Rial, Diego
author_facet Rial, Diego
Santos-Echeandía, Juan
Álvarez-Salgado, Xosé Antón
Jordi, Antoni
Tovar-Sánchez, Antonio
Bellas, Juan
author_role author
author2 Santos-Echeandía, Juan
Álvarez-Salgado, Xosé Antón
Jordi, Antoni
Tovar-Sánchez, Antonio
Bellas, Juan
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Antagonisms
Joint toxicity
Response surface
Sea urchin embryo
Seabird guano
Trace metals
topic Antagonisms
Joint toxicity
Response surface
Sea urchin embryo
Seabird guano
Trace metals
description 10 páginas, 3 figuras, 3 tablas
publishDate 2016
dc.date.none.fl_str_mv 2016
2016
2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/130957
url http://hdl.handle.net/10261/130957
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.chemosphere.2015.11.064
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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