Impact of crab bioturbation on benthic flux and nitrogen dynamics of Southwest Atlantic intertidal marshes and mudflats

Autores
Fanjul, Maria Eugenia; Bazterrica, Maria Cielo; Escapa, Carlos Mauricio; Grela, Maria Alejandra; Iribarne, Oscar Osvaldo
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effect of the SW Atlantic intertidal burrowing crab Neohelice (Chasmagnathus) granulata on benthic metabolism, benthic flux, and benthic N cycling processes was investigated through field experiments and in situ benthic chambers incubations. Our experimental results show that the presence and activity of N. granulata and its burrows may affect the direction and magnitude of nutrient benthic fluxes. Bioturbation enhanced ammonium efflux at mudflats, and influx at marshes. The flux of nitrate toward the sediment was stimulated by crabs at light and dark conditions in marshes, but only under light exposure in mudflats. Crab bioturbation stimulated benthic metabolism, N mineralization, nitrification and denitrification potentials in both sites. Crabs seem to have contrasting effects on dissolved inorganic nitrogen (DIN) availability between marshes and mudflats, as reflected on benthic DIN flux. This different effect on DIN availability and also the possible different effects of crabs on N2-fixers organisms could explain the opposite N2 fixation pattern found for both habitats, since crabs promoted N2 fixation in marshes, but diminished its rate in mudflats. Thus, the results obtained here through manipulative field experiments using benthic chambers suggest that macrofauna may influence the N benthic cycle and DIN fluxes in estuarine sediments. Besides, these macrofauna effects could be context-dependent, being many of them opposite between mudflats and marshes. We concluded that the above mentioned effects and the bioturbationemacrophytes interaction may be affecting the dissolved nutrient exportation from marshes to open waters.
Fil: Fanjul, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina
Fil: Bazterrica, Maria Cielo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina
Fil: Escapa, Carlos Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina
Fil: Grela, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina
Fil: Iribarne, Oscar Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina
Materia
Biogeochemistry
Benthic flux
Nitrogen cycle
Bioturbation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/280794
Acceder
id CONICETDig_fcdc23927e13852d4c1f7ca2d15671df
oai_identifier_str oai:ri.conicet.gov.ar:11336/280794
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Impact of crab bioturbation on benthic flux and nitrogen dynamics of Southwest Atlantic intertidal marshes and mudflatsFanjul, Maria EugeniaBazterrica, Maria CieloEscapa, Carlos MauricioGrela, Maria AlejandraIribarne, Oscar OsvaldoBiogeochemistryBenthic fluxNitrogen cycleBioturbationhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The effect of the SW Atlantic intertidal burrowing crab Neohelice (Chasmagnathus) granulata on benthic metabolism, benthic flux, and benthic N cycling processes was investigated through field experiments and in situ benthic chambers incubations. Our experimental results show that the presence and activity of N. granulata and its burrows may affect the direction and magnitude of nutrient benthic fluxes. Bioturbation enhanced ammonium efflux at mudflats, and influx at marshes. The flux of nitrate toward the sediment was stimulated by crabs at light and dark conditions in marshes, but only under light exposure in mudflats. Crab bioturbation stimulated benthic metabolism, N mineralization, nitrification and denitrification potentials in both sites. Crabs seem to have contrasting effects on dissolved inorganic nitrogen (DIN) availability between marshes and mudflats, as reflected on benthic DIN flux. This different effect on DIN availability and also the possible different effects of crabs on N2-fixers organisms could explain the opposite N2 fixation pattern found for both habitats, since crabs promoted N2 fixation in marshes, but diminished its rate in mudflats. Thus, the results obtained here through manipulative field experiments using benthic chambers suggest that macrofauna may influence the N benthic cycle and DIN fluxes in estuarine sediments. Besides, these macrofauna effects could be context-dependent, being many of them opposite between mudflats and marshes. We concluded that the above mentioned effects and the bioturbationemacrophytes interaction may be affecting the dissolved nutrient exportation from marshes to open waters.Fil: Fanjul, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; ArgentinaFil: Bazterrica, Maria Cielo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; ArgentinaFil: Escapa, Carlos Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; ArgentinaFil: Grela, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; ArgentinaFil: Iribarne, Oscar Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; ArgentinaAcademic Press Ltd - Elsevier Science Ltd2011-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/280794Fanjul, Maria Eugenia; Bazterrica, Maria Cielo; Escapa, Carlos Mauricio; Grela, Maria Alejandra; Iribarne, Oscar Osvaldo; Impact of crab bioturbation on benthic flux and nitrogen dynamics of Southwest Atlantic intertidal marshes and mudflats; Academic Press Ltd - Elsevier Science Ltd; Estuarine, Coastal and Shelf Science; 92; 4; 5-2011; 629-6380272-7714CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0272771411000837info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecss.2011.03.002info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-26T10:30:26Zoai:ri.conicet.gov.ar:11336/280794instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-02-26 10:30:26.831CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Impact of crab bioturbation on benthic flux and nitrogen dynamics of Southwest Atlantic intertidal marshes and mudflats
title Impact of crab bioturbation on benthic flux and nitrogen dynamics of Southwest Atlantic intertidal marshes and mudflats
spellingShingle Impact of crab bioturbation on benthic flux and nitrogen dynamics of Southwest Atlantic intertidal marshes and mudflats
Fanjul, Maria Eugenia
Biogeochemistry
Benthic flux
Nitrogen cycle
Bioturbation
title_short Impact of crab bioturbation on benthic flux and nitrogen dynamics of Southwest Atlantic intertidal marshes and mudflats
title_full Impact of crab bioturbation on benthic flux and nitrogen dynamics of Southwest Atlantic intertidal marshes and mudflats
title_fullStr Impact of crab bioturbation on benthic flux and nitrogen dynamics of Southwest Atlantic intertidal marshes and mudflats
title_full_unstemmed Impact of crab bioturbation on benthic flux and nitrogen dynamics of Southwest Atlantic intertidal marshes and mudflats
title_sort Impact of crab bioturbation on benthic flux and nitrogen dynamics of Southwest Atlantic intertidal marshes and mudflats
dc.creator.none.fl_str_mv Fanjul, Maria Eugenia
Bazterrica, Maria Cielo
Escapa, Carlos Mauricio
Grela, Maria Alejandra
Iribarne, Oscar Osvaldo
author Fanjul, Maria Eugenia
author_facet Fanjul, Maria Eugenia
Bazterrica, Maria Cielo
Escapa, Carlos Mauricio
Grela, Maria Alejandra
Iribarne, Oscar Osvaldo
author_role author
author2 Bazterrica, Maria Cielo
Escapa, Carlos Mauricio
Grela, Maria Alejandra
Iribarne, Oscar Osvaldo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Biogeochemistry
Benthic flux
Nitrogen cycle
Bioturbation
topic Biogeochemistry
Benthic flux
Nitrogen cycle
Bioturbation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The effect of the SW Atlantic intertidal burrowing crab Neohelice (Chasmagnathus) granulata on benthic metabolism, benthic flux, and benthic N cycling processes was investigated through field experiments and in situ benthic chambers incubations. Our experimental results show that the presence and activity of N. granulata and its burrows may affect the direction and magnitude of nutrient benthic fluxes. Bioturbation enhanced ammonium efflux at mudflats, and influx at marshes. The flux of nitrate toward the sediment was stimulated by crabs at light and dark conditions in marshes, but only under light exposure in mudflats. Crab bioturbation stimulated benthic metabolism, N mineralization, nitrification and denitrification potentials in both sites. Crabs seem to have contrasting effects on dissolved inorganic nitrogen (DIN) availability between marshes and mudflats, as reflected on benthic DIN flux. This different effect on DIN availability and also the possible different effects of crabs on N2-fixers organisms could explain the opposite N2 fixation pattern found for both habitats, since crabs promoted N2 fixation in marshes, but diminished its rate in mudflats. Thus, the results obtained here through manipulative field experiments using benthic chambers suggest that macrofauna may influence the N benthic cycle and DIN fluxes in estuarine sediments. Besides, these macrofauna effects could be context-dependent, being many of them opposite between mudflats and marshes. We concluded that the above mentioned effects and the bioturbationemacrophytes interaction may be affecting the dissolved nutrient exportation from marshes to open waters.
Fil: Fanjul, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina
Fil: Bazterrica, Maria Cielo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina
Fil: Escapa, Carlos Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina
Fil: Grela, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina
Fil: Iribarne, Oscar Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina
description The effect of the SW Atlantic intertidal burrowing crab Neohelice (Chasmagnathus) granulata on benthic metabolism, benthic flux, and benthic N cycling processes was investigated through field experiments and in situ benthic chambers incubations. Our experimental results show that the presence and activity of N. granulata and its burrows may affect the direction and magnitude of nutrient benthic fluxes. Bioturbation enhanced ammonium efflux at mudflats, and influx at marshes. The flux of nitrate toward the sediment was stimulated by crabs at light and dark conditions in marshes, but only under light exposure in mudflats. Crab bioturbation stimulated benthic metabolism, N mineralization, nitrification and denitrification potentials in both sites. Crabs seem to have contrasting effects on dissolved inorganic nitrogen (DIN) availability between marshes and mudflats, as reflected on benthic DIN flux. This different effect on DIN availability and also the possible different effects of crabs on N2-fixers organisms could explain the opposite N2 fixation pattern found for both habitats, since crabs promoted N2 fixation in marshes, but diminished its rate in mudflats. Thus, the results obtained here through manipulative field experiments using benthic chambers suggest that macrofauna may influence the N benthic cycle and DIN fluxes in estuarine sediments. Besides, these macrofauna effects could be context-dependent, being many of them opposite between mudflats and marshes. We concluded that the above mentioned effects and the bioturbationemacrophytes interaction may be affecting the dissolved nutrient exportation from marshes to open waters.
publishDate 2011
dc.date.none.fl_str_mv 2011-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/280794
Fanjul, Maria Eugenia; Bazterrica, Maria Cielo; Escapa, Carlos Mauricio; Grela, Maria Alejandra; Iribarne, Oscar Osvaldo; Impact of crab bioturbation on benthic flux and nitrogen dynamics of Southwest Atlantic intertidal marshes and mudflats; Academic Press Ltd - Elsevier Science Ltd; Estuarine, Coastal and Shelf Science; 92; 4; 5-2011; 629-638
0272-7714
CONICET Digital
CONICET
url http://hdl.handle.net/11336/280794
identifier_str_mv Fanjul, Maria Eugenia; Bazterrica, Maria Cielo; Escapa, Carlos Mauricio; Grela, Maria Alejandra; Iribarne, Oscar Osvaldo; Impact of crab bioturbation on benthic flux and nitrogen dynamics of Southwest Atlantic intertidal marshes and mudflats; Academic Press Ltd - Elsevier Science Ltd; Estuarine, Coastal and Shelf Science; 92; 4; 5-2011; 629-638
0272-7714
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0272771411000837
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecss.2011.03.002
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Academic Press Ltd - Elsevier Science Ltd
publisher.none.fl_str_mv Academic Press Ltd - Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.665996

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