Stable nitrogen isotopes in coastal macroalgae: geographic and anthropogenic variability

Proyectos ANILE (CTM2009-08396 and CTM2010-08804-E) del Plan Nacional de I+D+i y RADIALES del Instituto Español de Oceanografía (IEO). I.G.V. recibió un contrato FPI del Ministerio de Economía y Competividad

Bibliographic Details
Authors: González-Viana, Inés, Bode, Antonio
Format: article
Status:Versión enviada para evaluación y publicación
Publication Date:2013
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/316303
Online Access:http://hdl.handle.net/10261/316303
Access Level:Open access
Keyword:Medio Marino
benthos
Centro Oceanográfico de A Coruña
macroalgae
stable isotopes
nitrogen
wastewater
upwelling
Fucus
Ascophyllum
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oai_identifier_str oai:digital.csic.es:10261/316303
network_acronym_str ES
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repository_id_str
spelling Stable nitrogen isotopes in coastal macroalgae: geographic and anthropogenic variabilityGonzález-Viana, InésBode, AntonioMedio MarinobenthosCentro Oceanográfico de A Coruñamacroalgaestable isotopesnitrogenwastewaterupwellingFucusAscophyllumProyectos ANILE (CTM2009-08396 and CTM2010-08804-E) del Plan Nacional de I+D+i y RADIALES del Instituto Español de Oceanografía (IEO). I.G.V. recibió un contrato FPI del Ministerio de Economía y CompetividadGrowing human population add to the natural nitrogen loads to coastal waters. As the excess nitrogen is readily incorporated in new biomass anthropogenic and natural nitrogen sources may be traced by the measurement of stable nitrogen isotopes (δ15N). In this study δ15N was determined in two species of macroalgae (Ascophyllum nodosum and Fucus vesiculosus), and in nitrate and ammonium to determine the relative importance of anthropogenic versus natural sources of nitrogen along the coast of NW Spain. Both algal species and nitrogen sources showed similar isotopic enrichment for a given site, but algal δ15N was not related to either inorganic nitrogen concentrations or δ15N in the water samples. The latter suggests that inorganic nitrogen inputs are variable and do not always leave an isotopic trace in macroalgae. However, a significant linear decrease in macroalgal δ15N along the coast is consistent with the differential effect of upwelling. Besides this geographic variability, the influence of anthropogenic nitrogen sources is evidenced by higher δ15N in macroalgae from rias and estuaries compared to those from open coastal areas and in areas with more than 15x103 inhabitants in the watershed. These results indicate that, in contrast with other studies, macroalgal δ15Nis not simply related to either inorganic nitrogen concentrations or human population size but depends on other factors as the upwelling or the efficiency of local waste treatment systems.Plan nacional I+D+i, IEOSI202320232013info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Preprintinfo:eu-repo/semantics/submittedVersionhttp://hdl.handle.net/10261/316303reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésCentro Oceanográfico de A Coruñahttp://www.sciencedirect.com/science/article/pii/S0048969712014982info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3163032026-05-22T06:33:51Z
dc.title.none.fl_str_mv Stable nitrogen isotopes in coastal macroalgae: geographic and anthropogenic variability
title Stable nitrogen isotopes in coastal macroalgae: geographic and anthropogenic variability
spellingShingle Stable nitrogen isotopes in coastal macroalgae: geographic and anthropogenic variability
González-Viana, Inés
Medio Marino
benthos
Centro Oceanográfico de A Coruña
macroalgae
stable isotopes
nitrogen
wastewater
upwelling
Fucus
Ascophyllum
title_short Stable nitrogen isotopes in coastal macroalgae: geographic and anthropogenic variability
title_full Stable nitrogen isotopes in coastal macroalgae: geographic and anthropogenic variability
title_fullStr Stable nitrogen isotopes in coastal macroalgae: geographic and anthropogenic variability
title_full_unstemmed Stable nitrogen isotopes in coastal macroalgae: geographic and anthropogenic variability
title_sort Stable nitrogen isotopes in coastal macroalgae: geographic and anthropogenic variability
dc.creator.none.fl_str_mv González-Viana, Inés
Bode, Antonio
author González-Viana, Inés
author_facet González-Viana, Inés
Bode, Antonio
author_role author
author2 Bode, Antonio
author2_role author
dc.subject.none.fl_str_mv Medio Marino
benthos
Centro Oceanográfico de A Coruña
macroalgae
stable isotopes
nitrogen
wastewater
upwelling
Fucus
Ascophyllum
topic Medio Marino
benthos
Centro Oceanográfico de A Coruña
macroalgae
stable isotopes
nitrogen
wastewater
upwelling
Fucus
Ascophyllum
description Proyectos ANILE (CTM2009-08396 and CTM2010-08804-E) del Plan Nacional de I+D+i y RADIALES del Instituto Español de Oceanografía (IEO). I.G.V. recibió un contrato FPI del Ministerio de Economía y Competividad
publishDate 2013
dc.date.none.fl_str_mv 2013
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Preprint
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/316303
url http://hdl.handle.net/10261/316303
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Centro Oceanográfico de A Coruña
http://www.sciencedirect.com/science/article/pii/S0048969712014982
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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
_version_ 1869413578677682176
score 15.812429

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