Biomasss and microzooplankton seasonal assemblages in the Bahía Blanca Estuary, Argentinean Coast

Autores
Barria, Maria Sonia; Piccolo, Maria Cintia; Perillo, Gerardo Miguel E.
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigated the occurrence and seasonal variation of the biomass of rotifers, tintinnids, the heterotrophic dinoflagellate Gyrodinium fusus and copepod nauplii in the Bahı´a Blanca Estuary (38842′ S61850 ′ W), Argentina, during an annual cycle. The rotifers fauna comprised three species, while the tintinnids were represented by sixteen species. The biomass of the rotifers fluctuated between 0.62 and 8.90 mgC l21 . The biomass of the tintinnids fluctuated between 0.13 and 9.37 mgC l21 , the biomass of the nauplii stages between 1.78 and 7.65 mgC l21 ; while the biomass of G. fusus varied from 0.26 and 7.94 mgC l21 , these results are compared to estimates of microzooplankton in other regions. We analysed the presence of the different groups in relation to the environmental variables, based on point-biserial correlation. Salinity fluctuated between 25.14 and 36.64; temperature between 7.5 and 23.28C, solar radiation between 0.9 and 30.8 MJ m22 d21 and Secchi distance between 0.25 and 1.43 m. Rotifers were correlated positively with temperature, chlorophyll-a and Secchi depth and negatively with salinity. The tintinnids were positively correlated with salinity. Gyrodinium fusus was positively correlated with Secchi depth, and chlorophyll-a, and negatively with temperature and solar radiation. Nauplii stages were negatively correlated with chlorophyll-a. Based on the occurrence of the microzooplankters in relation to the physico-chemical variables, it was possible to establish two seasonal assemblages: (a) the co-occurrence of the rotifers and the heterotrophic dinoflagellate G. fusus during the winter– spring; and (b) the tintinnids and nauplii larvae during the summer. We conclude that, in this estuary, physico-chemical variables are the forcing factors that directly, or indirectly, influence the seasonal assemblages of the microzooplankton.
Fil: Barria, Maria Sonia. 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; Argentina
Fil: Piccolo, Maria Cintia. 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; Argentina
Fil: Perillo, Gerardo Miguel E.. 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; Argentina
Materia
Microzooplankton
Biomass
Seasonal Assemblages
Estuaries
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:11336/22299
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/22299
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Biomasss and microzooplankton seasonal assemblages in the Bahía Blanca Estuary, Argentinean CoastBarria, Maria SoniaPiccolo, Maria CintiaPerillo, Gerardo Miguel E.MicrozooplanktonBiomassSeasonal AssemblagesEstuarieshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1We investigated the occurrence and seasonal variation of the biomass of rotifers, tintinnids, the heterotrophic dinoflagellate Gyrodinium fusus and copepod nauplii in the Bahı´a Blanca Estuary (38842′ S61850 ′ W), Argentina, during an annual cycle. The rotifers fauna comprised three species, while the tintinnids were represented by sixteen species. The biomass of the rotifers fluctuated between 0.62 and 8.90 mgC l21 . The biomass of the tintinnids fluctuated between 0.13 and 9.37 mgC l21 , the biomass of the nauplii stages between 1.78 and 7.65 mgC l21 ; while the biomass of G. fusus varied from 0.26 and 7.94 mgC l21 , these results are compared to estimates of microzooplankton in other regions. We analysed the presence of the different groups in relation to the environmental variables, based on point-biserial correlation. Salinity fluctuated between 25.14 and 36.64; temperature between 7.5 and 23.28C, solar radiation between 0.9 and 30.8 MJ m22 d21 and Secchi distance between 0.25 and 1.43 m. Rotifers were correlated positively with temperature, chlorophyll-a and Secchi depth and negatively with salinity. The tintinnids were positively correlated with salinity. Gyrodinium fusus was positively correlated with Secchi depth, and chlorophyll-a, and negatively with temperature and solar radiation. Nauplii stages were negatively correlated with chlorophyll-a. Based on the occurrence of the microzooplankters in relation to the physico-chemical variables, it was possible to establish two seasonal assemblages: (a) the co-occurrence of the rotifers and the heterotrophic dinoflagellate G. fusus during the winter– spring; and (b) the tintinnids and nauplii larvae during the summer. We conclude that, in this estuary, physico-chemical variables are the forcing factors that directly, or indirectly, influence the seasonal assemblages of the microzooplankton.Fil: Barria, Maria Sonia. 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; ArgentinaFil: Piccolo, Maria Cintia. 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; ArgentinaFil: Perillo, Gerardo Miguel E.. 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; ArgentinaCambridge University Press2011-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22299Barria, Maria Sonia; Piccolo, Maria Cintia; Perillo, Gerardo Miguel E.; Biomasss and microzooplankton seasonal assemblages in the Bahía Blanca Estuary, Argentinean Coast; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 91; 5; 12-2011; 953-9590025-3154CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1017/S0025315411000105info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/biomasss-and-microzooplankton-seasonal-assemblages-in-the-bahia-blanca-estuary-argentinean-coast/8D1317737F0FC39D8C17BB6C74E5371Dinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:46:25Zoai:ri.conicet.gov.ar:11336/22299instacron: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:34982025-11-12 09:46:25.758CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Biomasss and microzooplankton seasonal assemblages in the Bahía Blanca Estuary, Argentinean Coast
title Biomasss and microzooplankton seasonal assemblages in the Bahía Blanca Estuary, Argentinean Coast
spellingShingle Biomasss and microzooplankton seasonal assemblages in the Bahía Blanca Estuary, Argentinean Coast
Barria, Maria Sonia
Microzooplankton
Biomass
Seasonal Assemblages
Estuaries
title_short Biomasss and microzooplankton seasonal assemblages in the Bahía Blanca Estuary, Argentinean Coast
title_full Biomasss and microzooplankton seasonal assemblages in the Bahía Blanca Estuary, Argentinean Coast
title_fullStr Biomasss and microzooplankton seasonal assemblages in the Bahía Blanca Estuary, Argentinean Coast
title_full_unstemmed Biomasss and microzooplankton seasonal assemblages in the Bahía Blanca Estuary, Argentinean Coast
title_sort Biomasss and microzooplankton seasonal assemblages in the Bahía Blanca Estuary, Argentinean Coast
dc.creator.none.fl_str_mv Barria, Maria Sonia
Piccolo, Maria Cintia
Perillo, Gerardo Miguel E.
author Barria, Maria Sonia
author_facet Barria, Maria Sonia
Piccolo, Maria Cintia
Perillo, Gerardo Miguel E.
author_role author
author2 Piccolo, Maria Cintia
Perillo, Gerardo Miguel E.
author2_role author
author
dc.subject.none.fl_str_mv Microzooplankton
Biomass
Seasonal Assemblages
Estuaries
topic Microzooplankton
Biomass
Seasonal Assemblages
Estuaries
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We investigated the occurrence and seasonal variation of the biomass of rotifers, tintinnids, the heterotrophic dinoflagellate Gyrodinium fusus and copepod nauplii in the Bahı´a Blanca Estuary (38842′ S61850 ′ W), Argentina, during an annual cycle. The rotifers fauna comprised three species, while the tintinnids were represented by sixteen species. The biomass of the rotifers fluctuated between 0.62 and 8.90 mgC l21 . The biomass of the tintinnids fluctuated between 0.13 and 9.37 mgC l21 , the biomass of the nauplii stages between 1.78 and 7.65 mgC l21 ; while the biomass of G. fusus varied from 0.26 and 7.94 mgC l21 , these results are compared to estimates of microzooplankton in other regions. We analysed the presence of the different groups in relation to the environmental variables, based on point-biserial correlation. Salinity fluctuated between 25.14 and 36.64; temperature between 7.5 and 23.28C, solar radiation between 0.9 and 30.8 MJ m22 d21 and Secchi distance between 0.25 and 1.43 m. Rotifers were correlated positively with temperature, chlorophyll-a and Secchi depth and negatively with salinity. The tintinnids were positively correlated with salinity. Gyrodinium fusus was positively correlated with Secchi depth, and chlorophyll-a, and negatively with temperature and solar radiation. Nauplii stages were negatively correlated with chlorophyll-a. Based on the occurrence of the microzooplankters in relation to the physico-chemical variables, it was possible to establish two seasonal assemblages: (a) the co-occurrence of the rotifers and the heterotrophic dinoflagellate G. fusus during the winter– spring; and (b) the tintinnids and nauplii larvae during the summer. We conclude that, in this estuary, physico-chemical variables are the forcing factors that directly, or indirectly, influence the seasonal assemblages of the microzooplankton.
Fil: Barria, Maria Sonia. 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; Argentina
Fil: Piccolo, Maria Cintia. 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; Argentina
Fil: Perillo, Gerardo Miguel E.. 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; Argentina
description We investigated the occurrence and seasonal variation of the biomass of rotifers, tintinnids, the heterotrophic dinoflagellate Gyrodinium fusus and copepod nauplii in the Bahı´a Blanca Estuary (38842′ S61850 ′ W), Argentina, during an annual cycle. The rotifers fauna comprised three species, while the tintinnids were represented by sixteen species. The biomass of the rotifers fluctuated between 0.62 and 8.90 mgC l21 . The biomass of the tintinnids fluctuated between 0.13 and 9.37 mgC l21 , the biomass of the nauplii stages between 1.78 and 7.65 mgC l21 ; while the biomass of G. fusus varied from 0.26 and 7.94 mgC l21 , these results are compared to estimates of microzooplankton in other regions. We analysed the presence of the different groups in relation to the environmental variables, based on point-biserial correlation. Salinity fluctuated between 25.14 and 36.64; temperature between 7.5 and 23.28C, solar radiation between 0.9 and 30.8 MJ m22 d21 and Secchi distance between 0.25 and 1.43 m. Rotifers were correlated positively with temperature, chlorophyll-a and Secchi depth and negatively with salinity. The tintinnids were positively correlated with salinity. Gyrodinium fusus was positively correlated with Secchi depth, and chlorophyll-a, and negatively with temperature and solar radiation. Nauplii stages were negatively correlated with chlorophyll-a. Based on the occurrence of the microzooplankters in relation to the physico-chemical variables, it was possible to establish two seasonal assemblages: (a) the co-occurrence of the rotifers and the heterotrophic dinoflagellate G. fusus during the winter– spring; and (b) the tintinnids and nauplii larvae during the summer. We conclude that, in this estuary, physico-chemical variables are the forcing factors that directly, or indirectly, influence the seasonal assemblages of the microzooplankton.
publishDate 2011
dc.date.none.fl_str_mv 2011-12
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/11336/22299
Barria, Maria Sonia; Piccolo, Maria Cintia; Perillo, Gerardo Miguel E.; Biomasss and microzooplankton seasonal assemblages in the Bahía Blanca Estuary, Argentinean Coast; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 91; 5; 12-2011; 953-959
0025-3154
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22299
identifier_str_mv Barria, Maria Sonia; Piccolo, Maria Cintia; Perillo, Gerardo Miguel E.; Biomasss and microzooplankton seasonal assemblages in the Bahía Blanca Estuary, Argentinean Coast; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 91; 5; 12-2011; 953-959
0025-3154
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1017/S0025315411000105
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/biomasss-and-microzooplankton-seasonal-assemblages-in-the-bahia-blanca-estuary-argentinean-coast/8D1317737F0FC39D8C17BB6C74E5371D
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 Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
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
_version_ 1848597887002345472
score 12.976206

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