Microplankton Dynamics Under Heavy Anthropogenic Pressure: the Case of the Bahía Blanca Estuary, Southwestern Atlantic Ocean

Autores
López Abbate, María Celeste; Molinero, Juan Carlos; Guinder, Valeria Ana; Dutto, María Sofía; Barría de Cao, M. Sonia; Ruiz Etcheverry, Laura Agustina; Pettigrosso, Rosa E.; Carcedo, Maria Cecilia; Hoffmeyer, Monica Susana
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Quantifying biotic feedbacks in response to environmental signals is fundamental to assess ecosystem perturbation. We analyzed the joint effects of eutrophication, derived from sewage pollution, and climate at the base of the pelagic food web in the Bahía Blanca Estuary (SW Atlantic Ocean). A two-year survey of environmental conditions and microplankton communities was conducted in two sites affected by contrasting anthropogenic eutrophication conditions. Under severe eutrophication, we found higher phytoplankton abundance consistently dominated by smaller sized, non siliceous species, while microzooplankton abundance remained lower and nutrient stoichiometry showed conspicuous deviations from the Redfield ratio. Phytoplankton growth in such conditions appeared controlled by phosphorous. In turn, microplankton biomass and phytoplankton size ratio (<20 μm:>20 μm) displayed a saturation relationship with nutrients in the highly eutrophic area, although mean phytoplankton growth was similar in both eutrophic systems. The strength of links within the estuarine network, quantified through path analysis, showed enhanced relationships under larger anthropogenic eutrophication, which fostered the climate influence on microplankton communities. Our results show conspicuous effects of severe sewage pollution on the ecological stoichiometry, i.e., N and P excess with respect to Si, altering nutrient ratios for microplankton communities. This warns on wide consequences on food web dynamics and ultimately in ecosystem assets of coastal pelagic environments.
Fil: López Abbate, María Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina
Fil: Molinero, Juan Carlos. Geomar-helmholtz Centre For Ocean Research Kiel; Alemania
Fil: Guinder, Valeria Ana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina
Fil: Dutto, María Sofía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina
Fil: Barría de Cao, M. Sonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina
Fil: Ruiz Etcheverry, Laura Agustina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pettigrosso, Rosa E.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología Acuática; Argentina
Fil: Carcedo, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina
Fil: Hoffmeyer, Monica Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina. Universidad Tecnológica Nacional. Facultad Regional Bahía Blanca; Argentina
Materia
Microplankton
Eutrophication
Estuaries
Nutrient Stoichiometry
Path Analysis
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/12501
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Microplankton Dynamics Under Heavy Anthropogenic Pressure: the Case of the Bahía Blanca Estuary, Southwestern Atlantic OceanLópez Abbate, María CelesteMolinero, Juan CarlosGuinder, Valeria AnaDutto, María SofíaBarría de Cao, M. SoniaRuiz Etcheverry, Laura AgustinaPettigrosso, Rosa E.Carcedo, Maria CeciliaHoffmeyer, Monica SusanaMicroplanktonEutrophicationEstuariesNutrient StoichiometryPath Analysishttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Quantifying biotic feedbacks in response to environmental signals is fundamental to assess ecosystem perturbation. We analyzed the joint effects of eutrophication, derived from sewage pollution, and climate at the base of the pelagic food web in the Bahía Blanca Estuary (SW Atlantic Ocean). A two-year survey of environmental conditions and microplankton communities was conducted in two sites affected by contrasting anthropogenic eutrophication conditions. Under severe eutrophication, we found higher phytoplankton abundance consistently dominated by smaller sized, non siliceous species, while microzooplankton abundance remained lower and nutrient stoichiometry showed conspicuous deviations from the Redfield ratio. Phytoplankton growth in such conditions appeared controlled by phosphorous. In turn, microplankton biomass and phytoplankton size ratio (<20 μm:>20 μm) displayed a saturation relationship with nutrients in the highly eutrophic area, although mean phytoplankton growth was similar in both eutrophic systems. The strength of links within the estuarine network, quantified through path analysis, showed enhanced relationships under larger anthropogenic eutrophication, which fostered the climate influence on microplankton communities. Our results show conspicuous effects of severe sewage pollution on the ecological stoichiometry, i.e., N and P excess with respect to Si, altering nutrient ratios for microplankton communities. This warns on wide consequences on food web dynamics and ultimately in ecosystem assets of coastal pelagic environments.Fil: López Abbate, María Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); ArgentinaFil: Molinero, Juan Carlos. Geomar-helmholtz Centre For Ocean Research Kiel; AlemaniaFil: Guinder, Valeria Ana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); ArgentinaFil: Dutto, María Sofía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); ArgentinaFil: Barría de Cao, M. Sonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); ArgentinaFil: Ruiz Etcheverry, Laura Agustina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Pettigrosso, Rosa E.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología Acuática; ArgentinaFil: Carcedo, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); ArgentinaFil: Hoffmeyer, Monica Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina. Universidad Tecnológica Nacional. Facultad Regional Bahía Blanca; ArgentinaElsevier2015-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/12501López Abbate, María Celeste; Molinero, Juan Carlos; Guinder, Valeria Ana; Dutto, María Sofía; Barría de Cao, M. Sonia; et al.; Microplankton Dynamics Under Heavy Anthropogenic Pressure: the Case of the Bahía Blanca Estuary, Southwestern Atlantic Ocean; Elsevier; Marine Pollution Bulletin; 95; 1; 6-2015; 305-3140025-326Xenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0025326X1500171Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.marpolbul.2015.03.026info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:22:26Zoai:ri.conicet.gov.ar:11336/12501instacron: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:34982025-10-22 12:22:26.761CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Microplankton Dynamics Under Heavy Anthropogenic Pressure: the Case of the Bahía Blanca Estuary, Southwestern Atlantic Ocean
title Microplankton Dynamics Under Heavy Anthropogenic Pressure: the Case of the Bahía Blanca Estuary, Southwestern Atlantic Ocean
spellingShingle Microplankton Dynamics Under Heavy Anthropogenic Pressure: the Case of the Bahía Blanca Estuary, Southwestern Atlantic Ocean
López Abbate, María Celeste
Microplankton
Eutrophication
Estuaries
Nutrient Stoichiometry
Path Analysis
title_short Microplankton Dynamics Under Heavy Anthropogenic Pressure: the Case of the Bahía Blanca Estuary, Southwestern Atlantic Ocean
title_full Microplankton Dynamics Under Heavy Anthropogenic Pressure: the Case of the Bahía Blanca Estuary, Southwestern Atlantic Ocean
title_fullStr Microplankton Dynamics Under Heavy Anthropogenic Pressure: the Case of the Bahía Blanca Estuary, Southwestern Atlantic Ocean
title_full_unstemmed Microplankton Dynamics Under Heavy Anthropogenic Pressure: the Case of the Bahía Blanca Estuary, Southwestern Atlantic Ocean
title_sort Microplankton Dynamics Under Heavy Anthropogenic Pressure: the Case of the Bahía Blanca Estuary, Southwestern Atlantic Ocean
dc.creator.none.fl_str_mv López Abbate, María Celeste
Molinero, Juan Carlos
Guinder, Valeria Ana
Dutto, María Sofía
Barría de Cao, M. Sonia
Ruiz Etcheverry, Laura Agustina
Pettigrosso, Rosa E.
Carcedo, Maria Cecilia
Hoffmeyer, Monica Susana
author López Abbate, María Celeste
author_facet López Abbate, María Celeste
Molinero, Juan Carlos
Guinder, Valeria Ana
Dutto, María Sofía
Barría de Cao, M. Sonia
Ruiz Etcheverry, Laura Agustina
Pettigrosso, Rosa E.
Carcedo, Maria Cecilia
Hoffmeyer, Monica Susana
author_role author
author2 Molinero, Juan Carlos
Guinder, Valeria Ana
Dutto, María Sofía
Barría de Cao, M. Sonia
Ruiz Etcheverry, Laura Agustina
Pettigrosso, Rosa E.
Carcedo, Maria Cecilia
Hoffmeyer, Monica Susana
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Microplankton
Eutrophication
Estuaries
Nutrient Stoichiometry
Path Analysis
topic Microplankton
Eutrophication
Estuaries
Nutrient Stoichiometry
Path Analysis
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Quantifying biotic feedbacks in response to environmental signals is fundamental to assess ecosystem perturbation. We analyzed the joint effects of eutrophication, derived from sewage pollution, and climate at the base of the pelagic food web in the Bahía Blanca Estuary (SW Atlantic Ocean). A two-year survey of environmental conditions and microplankton communities was conducted in two sites affected by contrasting anthropogenic eutrophication conditions. Under severe eutrophication, we found higher phytoplankton abundance consistently dominated by smaller sized, non siliceous species, while microzooplankton abundance remained lower and nutrient stoichiometry showed conspicuous deviations from the Redfield ratio. Phytoplankton growth in such conditions appeared controlled by phosphorous. In turn, microplankton biomass and phytoplankton size ratio (<20 μm:>20 μm) displayed a saturation relationship with nutrients in the highly eutrophic area, although mean phytoplankton growth was similar in both eutrophic systems. The strength of links within the estuarine network, quantified through path analysis, showed enhanced relationships under larger anthropogenic eutrophication, which fostered the climate influence on microplankton communities. Our results show conspicuous effects of severe sewage pollution on the ecological stoichiometry, i.e., N and P excess with respect to Si, altering nutrient ratios for microplankton communities. This warns on wide consequences on food web dynamics and ultimately in ecosystem assets of coastal pelagic environments.
Fil: López Abbate, María Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina
Fil: Molinero, Juan Carlos. Geomar-helmholtz Centre For Ocean Research Kiel; Alemania
Fil: Guinder, Valeria Ana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina
Fil: Dutto, María Sofía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina
Fil: Barría de Cao, M. Sonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina
Fil: Ruiz Etcheverry, Laura Agustina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pettigrosso, Rosa E.. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología Acuática; Argentina
Fil: Carcedo, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina
Fil: Hoffmeyer, Monica Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina. Universidad Tecnológica Nacional. Facultad Regional Bahía Blanca; Argentina
description Quantifying biotic feedbacks in response to environmental signals is fundamental to assess ecosystem perturbation. We analyzed the joint effects of eutrophication, derived from sewage pollution, and climate at the base of the pelagic food web in the Bahía Blanca Estuary (SW Atlantic Ocean). A two-year survey of environmental conditions and microplankton communities was conducted in two sites affected by contrasting anthropogenic eutrophication conditions. Under severe eutrophication, we found higher phytoplankton abundance consistently dominated by smaller sized, non siliceous species, while microzooplankton abundance remained lower and nutrient stoichiometry showed conspicuous deviations from the Redfield ratio. Phytoplankton growth in such conditions appeared controlled by phosphorous. In turn, microplankton biomass and phytoplankton size ratio (<20 μm:>20 μm) displayed a saturation relationship with nutrients in the highly eutrophic area, although mean phytoplankton growth was similar in both eutrophic systems. The strength of links within the estuarine network, quantified through path analysis, showed enhanced relationships under larger anthropogenic eutrophication, which fostered the climate influence on microplankton communities. Our results show conspicuous effects of severe sewage pollution on the ecological stoichiometry, i.e., N and P excess with respect to Si, altering nutrient ratios for microplankton communities. This warns on wide consequences on food web dynamics and ultimately in ecosystem assets of coastal pelagic environments.
publishDate 2015
dc.date.none.fl_str_mv 2015-06
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/11336/12501
López Abbate, María Celeste; Molinero, Juan Carlos; Guinder, Valeria Ana; Dutto, María Sofía; Barría de Cao, M. Sonia; et al.; Microplankton Dynamics Under Heavy Anthropogenic Pressure: the Case of the Bahía Blanca Estuary, Southwestern Atlantic Ocean; Elsevier; Marine Pollution Bulletin; 95; 1; 6-2015; 305-314
0025-326X
url http://hdl.handle.net/11336/12501
identifier_str_mv López Abbate, María Celeste; Molinero, Juan Carlos; Guinder, Valeria Ana; Dutto, María Sofía; Barría de Cao, M. Sonia; et al.; Microplankton Dynamics Under Heavy Anthropogenic Pressure: the Case of the Bahía Blanca Estuary, Southwestern Atlantic Ocean; Elsevier; Marine Pollution Bulletin; 95; 1; 6-2015; 305-314
0025-326X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0025326X1500171X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.marpolbul.2015.03.026
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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 12.982451

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