Benthic microalgal communities in the inner part of the Bahía Blanca estuary (Argentina): a preliminary study

Autores
Parodi, Elisa Rosalia; Barría de Cao
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The intertidal zone of the inner part of the Bahía Blanca estuary, Argentina is characterised by the presence of muddy tidal flats and salt marshes, habitats for burrowing crabs and halophytic plants. The surface layer of the sediments is composed of silt and clay. The sediments are substrate for the proliferation of benthic microalgal communities. The aim of this study was to analyse qualitatively the species composition of these communities and their role in the stabilisation of the sediments. Samples came from two stations: Puerto Cuatreros and Villarino Viejo. Puerto Cuatreros is an old pier without harbour activities closer than Villarino Viejo to the harbour zone affected by dredging. Both stations showed similar physical and chemical parameters. In addition, the benthic microalgal communities at both stations were comprised of cyanophytes and diatoms. The main difference between the two stations was the relative frequency of the algae—cyanophytes were predominant in Villarino Viejo while diatoms predominated in Puerto Cuatreros. Presumably, the difference was due to the major disturbance of the first due to deposition of particles of the fluid mud layer produced by the nearby dredging. Major species of cyanophytes were Microcoleus chtonoplastes and Oscillatoria limosa. Diatom assemblages were very diverse since the estuarine characteristics of the system allow the coexistence of marine, freshwater and estuarine species; also some of these species may be present in the plankton community.
La zone intertidale de l’estuaire de la Bahia Blanca est caractérisée par des fonds vaseux soumis aux marées et des marais salants, qui constituent des habitats pour les crabes fouisseurs et les plantes halophytes. La surface des sédiments, vaseuse et argileuse, constitue un bon substrat pour la prolifération des communautés benthiques microalgales. Cette étude analyse la composition spécifique de ces communautés et leur rôle dans la stabilisation des sédiments. Les échantillons proviennent de deux stations : Puerto Cuatreros et Villarino Viejo. La première est un ancien embarcadère sans activité portuaire, proche cependant de la zone portuaire que Villarino Viejo affectée par les dragages. Les deux stations présentent des caractéristiques physiques et chimiques similaires et les communautés benthiques de microalgues sont composées de cyanophycées et de diatomées. La différence principale entre ces deux stations tient à la fréquence relative des algues ; les cyanophycées dominent à Villarino Viejo et les diatomées à Puerto Cuatreros. Cette différence serait due à l’environnement plus perturbé de la première station liée à la proximité de la zone de dragage. Les principales espèces de cyanophytes sont Microcoleus chtonoplastes et Oscillatoria limosa . Les communautés de diatomées sont beaucoup plus diversifiées, l’écosystème estuarien permettant la coexistence d’espèces marines, estuariennes et d’eau douce. Quelques-unes de ces espèces apparaissent également dans le plancton.
Fil: Parodi, Elisa Rosalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Barría de Cao. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina
Materia
Microphytobenthos
Sediments
Bahia Blanca Estuary
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:11336/30632

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network_name_str CONICET Digital (CONICET)
spelling Benthic microalgal communities in the inner part of the Bahía Blanca estuary (Argentina): a preliminary studyCommunautés microalgales benthiques dans la partie intérieure de l’estuaire de la Bahía Blanca (Argentine) : étude qualitative préliminaireParodi, Elisa RosaliaBarría de CaoMicrophytobenthosSedimentsBahia Blanca Estuaryhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The intertidal zone of the inner part of the Bahía Blanca estuary, Argentina is characterised by the presence of muddy tidal flats and salt marshes, habitats for burrowing crabs and halophytic plants. The surface layer of the sediments is composed of silt and clay. The sediments are substrate for the proliferation of benthic microalgal communities. The aim of this study was to analyse qualitatively the species composition of these communities and their role in the stabilisation of the sediments. Samples came from two stations: Puerto Cuatreros and Villarino Viejo. Puerto Cuatreros is an old pier without harbour activities closer than Villarino Viejo to the harbour zone affected by dredging. Both stations showed similar physical and chemical parameters. In addition, the benthic microalgal communities at both stations were comprised of cyanophytes and diatoms. The main difference between the two stations was the relative frequency of the algae—cyanophytes were predominant in Villarino Viejo while diatoms predominated in Puerto Cuatreros. Presumably, the difference was due to the major disturbance of the first due to deposition of particles of the fluid mud layer produced by the nearby dredging. Major species of cyanophytes were Microcoleus chtonoplastes and Oscillatoria limosa. Diatom assemblages were very diverse since the estuarine characteristics of the system allow the coexistence of marine, freshwater and estuarine species; also some of these species may be present in the plankton community.La zone intertidale de l’estuaire de la Bahia Blanca est caractérisée par des fonds vaseux soumis aux marées et des marais salants, qui constituent des habitats pour les crabes fouisseurs et les plantes halophytes. La surface des sédiments, vaseuse et argileuse, constitue un bon substrat pour la prolifération des communautés benthiques microalgales. Cette étude analyse la composition spécifique de ces communautés et leur rôle dans la stabilisation des sédiments. Les échantillons proviennent de deux stations : Puerto Cuatreros et Villarino Viejo. La première est un ancien embarcadère sans activité portuaire, proche cependant de la zone portuaire que Villarino Viejo affectée par les dragages. Les deux stations présentent des caractéristiques physiques et chimiques similaires et les communautés benthiques de microalgues sont composées de cyanophycées et de diatomées. La différence principale entre ces deux stations tient à la fréquence relative des algues ; les cyanophycées dominent à Villarino Viejo et les diatomées à Puerto Cuatreros. Cette différence serait due à l’environnement plus perturbé de la première station liée à la proximité de la zone de dragage. Les principales espèces de cyanophytes sont Microcoleus chtonoplastes et Oscillatoria limosa . Les communautés de diatomées sont beaucoup plus diversifiées, l’écosystème estuarien permettant la coexistence d’espèces marines, estuariennes et d’eau douce. Quelques-unes de ces espèces apparaissent également dans le plancton.Fil: Parodi, Elisa Rosalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Barría de Cao. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; ArgentinaElsevier SAS2002-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/30632Parodi, Elisa Rosalia; Barría de Cao; Benthic microalgal communities in the inner part of the Bahía Blanca estuary (Argentina): a preliminary study; Elsevier SAS; Oceanologica Acta; 25; 12-2002; 279-2840399-1784CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://ac.els-cdn.com/S039917840201201X/1-s2.0-S039917840201201X-main.pdf?_tid=d346f9d8-e0e9-11e7-83a3-00000aacb35f&acdnat=1513268234_46812430ee59880c7c8350fe62f23f99info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:25:03Zoai:ri.conicet.gov.ar:11336/30632instacron: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 10:25:03.485CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Benthic microalgal communities in the inner part of the Bahía Blanca estuary (Argentina): a preliminary study
Communautés microalgales benthiques dans la partie intérieure de l’estuaire de la Bahía Blanca (Argentine) : étude qualitative préliminaire
title Benthic microalgal communities in the inner part of the Bahía Blanca estuary (Argentina): a preliminary study
spellingShingle Benthic microalgal communities in the inner part of the Bahía Blanca estuary (Argentina): a preliminary study
Parodi, Elisa Rosalia
Microphytobenthos
Sediments
Bahia Blanca Estuary
title_short Benthic microalgal communities in the inner part of the Bahía Blanca estuary (Argentina): a preliminary study
title_full Benthic microalgal communities in the inner part of the Bahía Blanca estuary (Argentina): a preliminary study
title_fullStr Benthic microalgal communities in the inner part of the Bahía Blanca estuary (Argentina): a preliminary study
title_full_unstemmed Benthic microalgal communities in the inner part of the Bahía Blanca estuary (Argentina): a preliminary study
title_sort Benthic microalgal communities in the inner part of the Bahía Blanca estuary (Argentina): a preliminary study
dc.creator.none.fl_str_mv Parodi, Elisa Rosalia
Barría de Cao
author Parodi, Elisa Rosalia
author_facet Parodi, Elisa Rosalia
Barría de Cao
author_role author
author2 Barría de Cao
author2_role author
dc.subject.none.fl_str_mv Microphytobenthos
Sediments
Bahia Blanca Estuary
topic Microphytobenthos
Sediments
Bahia Blanca Estuary
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 intertidal zone of the inner part of the Bahía Blanca estuary, Argentina is characterised by the presence of muddy tidal flats and salt marshes, habitats for burrowing crabs and halophytic plants. The surface layer of the sediments is composed of silt and clay. The sediments are substrate for the proliferation of benthic microalgal communities. The aim of this study was to analyse qualitatively the species composition of these communities and their role in the stabilisation of the sediments. Samples came from two stations: Puerto Cuatreros and Villarino Viejo. Puerto Cuatreros is an old pier without harbour activities closer than Villarino Viejo to the harbour zone affected by dredging. Both stations showed similar physical and chemical parameters. In addition, the benthic microalgal communities at both stations were comprised of cyanophytes and diatoms. The main difference between the two stations was the relative frequency of the algae—cyanophytes were predominant in Villarino Viejo while diatoms predominated in Puerto Cuatreros. Presumably, the difference was due to the major disturbance of the first due to deposition of particles of the fluid mud layer produced by the nearby dredging. Major species of cyanophytes were Microcoleus chtonoplastes and Oscillatoria limosa. Diatom assemblages were very diverse since the estuarine characteristics of the system allow the coexistence of marine, freshwater and estuarine species; also some of these species may be present in the plankton community.
La zone intertidale de l’estuaire de la Bahia Blanca est caractérisée par des fonds vaseux soumis aux marées et des marais salants, qui constituent des habitats pour les crabes fouisseurs et les plantes halophytes. La surface des sédiments, vaseuse et argileuse, constitue un bon substrat pour la prolifération des communautés benthiques microalgales. Cette étude analyse la composition spécifique de ces communautés et leur rôle dans la stabilisation des sédiments. Les échantillons proviennent de deux stations : Puerto Cuatreros et Villarino Viejo. La première est un ancien embarcadère sans activité portuaire, proche cependant de la zone portuaire que Villarino Viejo affectée par les dragages. Les deux stations présentent des caractéristiques physiques et chimiques similaires et les communautés benthiques de microalgues sont composées de cyanophycées et de diatomées. La différence principale entre ces deux stations tient à la fréquence relative des algues ; les cyanophycées dominent à Villarino Viejo et les diatomées à Puerto Cuatreros. Cette différence serait due à l’environnement plus perturbé de la première station liée à la proximité de la zone de dragage. Les principales espèces de cyanophytes sont Microcoleus chtonoplastes et Oscillatoria limosa . Les communautés de diatomées sont beaucoup plus diversifiées, l’écosystème estuarien permettant la coexistence d’espèces marines, estuariennes et d’eau douce. Quelques-unes de ces espèces apparaissent également dans le plancton.
Fil: Parodi, Elisa Rosalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Barría de Cao. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina
description The intertidal zone of the inner part of the Bahía Blanca estuary, Argentina is characterised by the presence of muddy tidal flats and salt marshes, habitats for burrowing crabs and halophytic plants. The surface layer of the sediments is composed of silt and clay. The sediments are substrate for the proliferation of benthic microalgal communities. The aim of this study was to analyse qualitatively the species composition of these communities and their role in the stabilisation of the sediments. Samples came from two stations: Puerto Cuatreros and Villarino Viejo. Puerto Cuatreros is an old pier without harbour activities closer than Villarino Viejo to the harbour zone affected by dredging. Both stations showed similar physical and chemical parameters. In addition, the benthic microalgal communities at both stations were comprised of cyanophytes and diatoms. The main difference between the two stations was the relative frequency of the algae—cyanophytes were predominant in Villarino Viejo while diatoms predominated in Puerto Cuatreros. Presumably, the difference was due to the major disturbance of the first due to deposition of particles of the fluid mud layer produced by the nearby dredging. Major species of cyanophytes were Microcoleus chtonoplastes and Oscillatoria limosa. Diatom assemblages were very diverse since the estuarine characteristics of the system allow the coexistence of marine, freshwater and estuarine species; also some of these species may be present in the plankton community.
publishDate 2002
dc.date.none.fl_str_mv 2002-12
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/11336/30632
Parodi, Elisa Rosalia; Barría de Cao; Benthic microalgal communities in the inner part of the Bahía Blanca estuary (Argentina): a preliminary study; Elsevier SAS; Oceanologica Acta; 25; 12-2002; 279-284
0399-1784
CONICET Digital
CONICET
url http://hdl.handle.net/11336/30632
identifier_str_mv Parodi, Elisa Rosalia; Barría de Cao; Benthic microalgal communities in the inner part of the Bahía Blanca estuary (Argentina): a preliminary study; Elsevier SAS; Oceanologica Acta; 25; 12-2002; 279-284
0399-1784
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://ac.els-cdn.com/S039917840201201X/1-s2.0-S039917840201201X-main.pdf?_tid=d346f9d8-e0e9-11e7-83a3-00000aacb35f&acdnat=1513268234_46812430ee59880c7c8350fe62f23f99
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
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dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier SAS
publisher.none.fl_str_mv Elsevier SAS
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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repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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