Spatial Variability of Phytoplankton and Environmental Factors in a Temperate Estuary of South América (Atlantic Coast, Argentina)

Autores
Popovich, Cecilia Angelines; Marcovecchio, Jorge Eduardo
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A spatial and temporal study on data collected along the longitudinal gradient of the Principal Channel of Bahía Blanca estuary, Argentina, was carried out during 1992–1993. At nine stations, phytoplankton abundance, chlorophyll a (Chl-a ) concentration, inorganic nutrient levels, Secchi disk depth, euphotic depth:mixing depth ratio ( Z eu : Z m ), salinity and temperature were recorded. Phytoplankton abundance, Chl- a concentration and nutrient levels decreased towards the outer zone of the estuary. The inner zone (stations 1 and 2), which was characterized by high turbidity, high nutrient concentrations and high Z eu : Z m ( 4 0.16, [critical mixing ratio]), registered the highest phytoplankton abundance and Chl- a concentrations. Temporal variability of data was also noteworthy in this zone. The highest biomass values thus corresponded to June, July, August and the beginning of spring (18 m g Chl- a L 1 and 9 10 6 cells L 1 ) concomitantly with a diatom bloom. In the middle zone (stations 3–6), a strong phytoplankton biomass decrease was observed and it coincided with both deep-mixed depths and low Z eu : Z m ( o 0.16). The outer zone (stations 7–9), which was characterized by low phytoplankton biomass values and low nutrient levels all along the year, was the area mostly influenced by waters from the adjacent continental shelf. In view of the above, it can be concluded that the most important primary production in the Bahı ́ a Blanca would be produced in the shallow inner zone during winter, being the spatial reach of the phytoplankton biomass principally limited to estuarine waters. Presumably, less than 5% of such biomass may reach the coastal area of the estuary.
Fil: Popovich, Cecilia Angelines. 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
Fil: Marcovecchio, Jorge Eduardo. 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 Tecnológica Nacional; Argentina. Universidad FASTA "Santo Tomas de Aquino"; Argentina
Materia
Bahia Blanca Estuary
Phytoplankton Dynamics
Historical Data
Environmental Conditions
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:11336/27391
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/27391
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Spatial Variability of Phytoplankton and Environmental Factors in a Temperate Estuary of South América (Atlantic Coast, Argentina)Popovich, Cecilia AngelinesMarcovecchio, Jorge EduardoBahia Blanca EstuaryPhytoplankton DynamicsHistorical DataEnvironmental Conditionshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1A spatial and temporal study on data collected along the longitudinal gradient of the Principal Channel of Bahía Blanca estuary, Argentina, was carried out during 1992–1993. At nine stations, phytoplankton abundance, chlorophyll a (Chl-a ) concentration, inorganic nutrient levels, Secchi disk depth, euphotic depth:mixing depth ratio ( Z eu : Z m ), salinity and temperature were recorded. Phytoplankton abundance, Chl- a concentration and nutrient levels decreased towards the outer zone of the estuary. The inner zone (stations 1 and 2), which was characterized by high turbidity, high nutrient concentrations and high Z eu : Z m ( 4 0.16, [critical mixing ratio]), registered the highest phytoplankton abundance and Chl- a concentrations. Temporal variability of data was also noteworthy in this zone. The highest biomass values thus corresponded to June, July, August and the beginning of spring (18 m g Chl- a L 1 and 9 10 6 cells L 1 ) concomitantly with a diatom bloom. In the middle zone (stations 3–6), a strong phytoplankton biomass decrease was observed and it coincided with both deep-mixed depths and low Z eu : Z m ( o 0.16). The outer zone (stations 7–9), which was characterized by low phytoplankton biomass values and low nutrient levels all along the year, was the area mostly influenced by waters from the adjacent continental shelf. In view of the above, it can be concluded that the most important primary production in the Bahı ́ a Blanca would be produced in the shallow inner zone during winter, being the spatial reach of the phytoplankton biomass principally limited to estuarine waters. Presumably, less than 5% of such biomass may reach the coastal area of the estuary.Fil: Popovich, Cecilia Angelines. 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; ArgentinaFil: Marcovecchio, Jorge Eduardo. 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 Tecnológica Nacional; Argentina. Universidad FASTA "Santo Tomas de Aquino"; ArgentinaElsevier2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/27391Popovich, Cecilia Angelines; Marcovecchio, Jorge Eduardo; Spatial Variability of Phytoplankton and Environmental Factors in a Temperate Estuary of South América (Atlantic Coast, Argentina); Elsevier; Continental Shelf Research; 28; 2; 12-2008; 236-2440278-4343CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.csr.2007.08.001info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0278434307002294info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:43:58Zoai:ri.conicet.gov.ar:11336/27391instacron: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:34982025-10-15 15:43:59.027CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spatial Variability of Phytoplankton and Environmental Factors in a Temperate Estuary of South América (Atlantic Coast, Argentina)
title Spatial Variability of Phytoplankton and Environmental Factors in a Temperate Estuary of South América (Atlantic Coast, Argentina)
spellingShingle Spatial Variability of Phytoplankton and Environmental Factors in a Temperate Estuary of South América (Atlantic Coast, Argentina)
Popovich, Cecilia Angelines
Bahia Blanca Estuary
Phytoplankton Dynamics
Historical Data
Environmental Conditions
title_short Spatial Variability of Phytoplankton and Environmental Factors in a Temperate Estuary of South América (Atlantic Coast, Argentina)
title_full Spatial Variability of Phytoplankton and Environmental Factors in a Temperate Estuary of South América (Atlantic Coast, Argentina)
title_fullStr Spatial Variability of Phytoplankton and Environmental Factors in a Temperate Estuary of South América (Atlantic Coast, Argentina)
title_full_unstemmed Spatial Variability of Phytoplankton and Environmental Factors in a Temperate Estuary of South América (Atlantic Coast, Argentina)
title_sort Spatial Variability of Phytoplankton and Environmental Factors in a Temperate Estuary of South América (Atlantic Coast, Argentina)
dc.creator.none.fl_str_mv Popovich, Cecilia Angelines
Marcovecchio, Jorge Eduardo
author Popovich, Cecilia Angelines
author_facet Popovich, Cecilia Angelines
Marcovecchio, Jorge Eduardo
author_role author
author2 Marcovecchio, Jorge Eduardo
author2_role author
dc.subject.none.fl_str_mv Bahia Blanca Estuary
Phytoplankton Dynamics
Historical Data
Environmental Conditions
topic Bahia Blanca Estuary
Phytoplankton Dynamics
Historical Data
Environmental Conditions
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A spatial and temporal study on data collected along the longitudinal gradient of the Principal Channel of Bahía Blanca estuary, Argentina, was carried out during 1992–1993. At nine stations, phytoplankton abundance, chlorophyll a (Chl-a ) concentration, inorganic nutrient levels, Secchi disk depth, euphotic depth:mixing depth ratio ( Z eu : Z m ), salinity and temperature were recorded. Phytoplankton abundance, Chl- a concentration and nutrient levels decreased towards the outer zone of the estuary. The inner zone (stations 1 and 2), which was characterized by high turbidity, high nutrient concentrations and high Z eu : Z m ( 4 0.16, [critical mixing ratio]), registered the highest phytoplankton abundance and Chl- a concentrations. Temporal variability of data was also noteworthy in this zone. The highest biomass values thus corresponded to June, July, August and the beginning of spring (18 m g Chl- a L 1 and 9 10 6 cells L 1 ) concomitantly with a diatom bloom. In the middle zone (stations 3–6), a strong phytoplankton biomass decrease was observed and it coincided with both deep-mixed depths and low Z eu : Z m ( o 0.16). The outer zone (stations 7–9), which was characterized by low phytoplankton biomass values and low nutrient levels all along the year, was the area mostly influenced by waters from the adjacent continental shelf. In view of the above, it can be concluded that the most important primary production in the Bahı ́ a Blanca would be produced in the shallow inner zone during winter, being the spatial reach of the phytoplankton biomass principally limited to estuarine waters. Presumably, less than 5% of such biomass may reach the coastal area of the estuary.
Fil: Popovich, Cecilia Angelines. 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
Fil: Marcovecchio, Jorge Eduardo. 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 Tecnológica Nacional; Argentina. Universidad FASTA "Santo Tomas de Aquino"; Argentina
description A spatial and temporal study on data collected along the longitudinal gradient of the Principal Channel of Bahía Blanca estuary, Argentina, was carried out during 1992–1993. At nine stations, phytoplankton abundance, chlorophyll a (Chl-a ) concentration, inorganic nutrient levels, Secchi disk depth, euphotic depth:mixing depth ratio ( Z eu : Z m ), salinity and temperature were recorded. Phytoplankton abundance, Chl- a concentration and nutrient levels decreased towards the outer zone of the estuary. The inner zone (stations 1 and 2), which was characterized by high turbidity, high nutrient concentrations and high Z eu : Z m ( 4 0.16, [critical mixing ratio]), registered the highest phytoplankton abundance and Chl- a concentrations. Temporal variability of data was also noteworthy in this zone. The highest biomass values thus corresponded to June, July, August and the beginning of spring (18 m g Chl- a L 1 and 9 10 6 cells L 1 ) concomitantly with a diatom bloom. In the middle zone (stations 3–6), a strong phytoplankton biomass decrease was observed and it coincided with both deep-mixed depths and low Z eu : Z m ( o 0.16). The outer zone (stations 7–9), which was characterized by low phytoplankton biomass values and low nutrient levels all along the year, was the area mostly influenced by waters from the adjacent continental shelf. In view of the above, it can be concluded that the most important primary production in the Bahı ́ a Blanca would be produced in the shallow inner zone during winter, being the spatial reach of the phytoplankton biomass principally limited to estuarine waters. Presumably, less than 5% of such biomass may reach the coastal area of the estuary.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
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/11336/27391
Popovich, Cecilia Angelines; Marcovecchio, Jorge Eduardo; Spatial Variability of Phytoplankton and Environmental Factors in a Temperate Estuary of South América (Atlantic Coast, Argentina); Elsevier; Continental Shelf Research; 28; 2; 12-2008; 236-244
0278-4343
CONICET Digital
CONICET
url http://hdl.handle.net/11336/27391
identifier_str_mv Popovich, Cecilia Angelines; Marcovecchio, Jorge Eduardo; Spatial Variability of Phytoplankton and Environmental Factors in a Temperate Estuary of South América (Atlantic Coast, Argentina); Elsevier; Continental Shelf Research; 28; 2; 12-2008; 236-244
0278-4343
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.csr.2007.08.001
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0278434307002294
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 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 13.22299

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