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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/12501
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T10:47:56Zoai: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:34982025-09-29 10:47:56.641CONICET 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) |
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CONICET Digital (CONICET) |
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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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13.070432 |