Primary production and plankton assemblages in the fisheries ground around San Jorge Gulf (Patagonia) during spring and summer

Autores
Segura, Valeria; Silva, Ricardo I.; Luz Clara Tejedor, Moira; Martos, Patricia; Cozzolino, Ezequiel; Lutz, Vivian Alicia
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The San Jorge Gulf, and the littoral to its north, is one of the most important fishing grounds for Argentina. Nevertheless, phytoplankton production has been scarcely studied. Here we analyzed during spring (2008) and summer (2009) the phytoplankton biomass, production, and the composition of phytoplankton and protozooplankton; their possible trophic relationships, and physical conditioners. At the south coast of the gulf during spring micro-nano-plankton (diatoms and dinoflagellates) were predominant and responsible for the maximum integrated production, comparable to that reported for the rich Argentinian shelf-break. Part of the organic carbon produced there was consumed by heterotrophic dinoflagellates, adding a trophic level to the food web. While at the center of the gulf, a conspicuous deep chlorophyll maximum would probably add organic matter to the bottom. During the following summer (2009), the ultrafraction represented the largest contribution to total phytoplankton biomass, and was dominated by Synechococcus sp. This, plus the abundance of ciliates, indicate the prevalence of a microbial food web during summer. It has been found that the frontal zones in the north and south of the gulf, favoring high phytoplankton biomass and its maintenance due to high primary production, provide a favorable food environment for impregnated female shrimp in spring, and for larvae during summer.
Fil: Segura, Valeria. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Silva, Ricardo I.. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Luz Clara Tejedor, Moira. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Instituto Franco-Argentino sobre Estudios del Clima y sus Impactos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina
Fil: Martos, Patricia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas; Argentina
Fil: Cozzolino, Ezequiel. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Lutz, Vivian Alicia. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina
Materia
BIO-OPTICAL PROPERTIES
PLANKTON ASSEMBLAGES
PRIMARY PRODUCTION
SAN JORGE GULF
SOUTHWESTERN ATLANTIC
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:11336/167990
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/167990
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Primary production and plankton assemblages in the fisheries ground around San Jorge Gulf (Patagonia) during spring and summerSegura, ValeriaSilva, Ricardo I.Luz Clara Tejedor, MoiraMartos, PatriciaCozzolino, EzequielLutz, Vivian AliciaBIO-OPTICAL PROPERTIESPLANKTON ASSEMBLAGESPRIMARY PRODUCTIONSAN JORGE GULFSOUTHWESTERN ATLANTIChttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The San Jorge Gulf, and the littoral to its north, is one of the most important fishing grounds for Argentina. Nevertheless, phytoplankton production has been scarcely studied. Here we analyzed during spring (2008) and summer (2009) the phytoplankton biomass, production, and the composition of phytoplankton and protozooplankton; their possible trophic relationships, and physical conditioners. At the south coast of the gulf during spring micro-nano-plankton (diatoms and dinoflagellates) were predominant and responsible for the maximum integrated production, comparable to that reported for the rich Argentinian shelf-break. Part of the organic carbon produced there was consumed by heterotrophic dinoflagellates, adding a trophic level to the food web. While at the center of the gulf, a conspicuous deep chlorophyll maximum would probably add organic matter to the bottom. During the following summer (2009), the ultrafraction represented the largest contribution to total phytoplankton biomass, and was dominated by Synechococcus sp. This, plus the abundance of ciliates, indicate the prevalence of a microbial food web during summer. It has been found that the frontal zones in the north and south of the gulf, favoring high phytoplankton biomass and its maintenance due to high primary production, provide a favorable food environment for impregnated female shrimp in spring, and for larvae during summer.Fil: Segura, Valeria. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: Silva, Ricardo I.. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: Luz Clara Tejedor, Moira. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Instituto Franco-Argentino sobre Estudios del Clima y sus Impactos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; ArgentinaFil: Martos, Patricia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas; ArgentinaFil: Cozzolino, Ezequiel. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: Lutz, Vivian Alicia. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; ArgentinaPlankton Society of Japan2021-02-19info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/167990Segura, Valeria; Silva, Ricardo I.; Luz Clara Tejedor, Moira; Martos, Patricia; Cozzolino, Ezequiel; et al.; Primary production and plankton assemblages in the fisheries ground around San Jorge Gulf (Patagonia) during spring and summer; Plankton Society of Japan; Plankton and Benthos Research; 16; 1; 19-2-2021; 24-391880-82471882-627XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.3800/pbr.16.24info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:00:37Zoai:ri.conicet.gov.ar:11336/167990instacron: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:34982025-09-03 10:00:37.505CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Primary production and plankton assemblages in the fisheries ground around San Jorge Gulf (Patagonia) during spring and summer
title Primary production and plankton assemblages in the fisheries ground around San Jorge Gulf (Patagonia) during spring and summer
spellingShingle Primary production and plankton assemblages in the fisheries ground around San Jorge Gulf (Patagonia) during spring and summer
Segura, Valeria
BIO-OPTICAL PROPERTIES
PLANKTON ASSEMBLAGES
PRIMARY PRODUCTION
SAN JORGE GULF
SOUTHWESTERN ATLANTIC
title_short Primary production and plankton assemblages in the fisheries ground around San Jorge Gulf (Patagonia) during spring and summer
title_full Primary production and plankton assemblages in the fisheries ground around San Jorge Gulf (Patagonia) during spring and summer
title_fullStr Primary production and plankton assemblages in the fisheries ground around San Jorge Gulf (Patagonia) during spring and summer
title_full_unstemmed Primary production and plankton assemblages in the fisheries ground around San Jorge Gulf (Patagonia) during spring and summer
title_sort Primary production and plankton assemblages in the fisheries ground around San Jorge Gulf (Patagonia) during spring and summer
dc.creator.none.fl_str_mv Segura, Valeria
Silva, Ricardo I.
Luz Clara Tejedor, Moira
Martos, Patricia
Cozzolino, Ezequiel
Lutz, Vivian Alicia
author Segura, Valeria
author_facet Segura, Valeria
Silva, Ricardo I.
Luz Clara Tejedor, Moira
Martos, Patricia
Cozzolino, Ezequiel
Lutz, Vivian Alicia
author_role author
author2 Silva, Ricardo I.
Luz Clara Tejedor, Moira
Martos, Patricia
Cozzolino, Ezequiel
Lutz, Vivian Alicia
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv BIO-OPTICAL PROPERTIES
PLANKTON ASSEMBLAGES
PRIMARY PRODUCTION
SAN JORGE GULF
SOUTHWESTERN ATLANTIC
topic BIO-OPTICAL PROPERTIES
PLANKTON ASSEMBLAGES
PRIMARY PRODUCTION
SAN JORGE GULF
SOUTHWESTERN ATLANTIC
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The San Jorge Gulf, and the littoral to its north, is one of the most important fishing grounds for Argentina. Nevertheless, phytoplankton production has been scarcely studied. Here we analyzed during spring (2008) and summer (2009) the phytoplankton biomass, production, and the composition of phytoplankton and protozooplankton; their possible trophic relationships, and physical conditioners. At the south coast of the gulf during spring micro-nano-plankton (diatoms and dinoflagellates) were predominant and responsible for the maximum integrated production, comparable to that reported for the rich Argentinian shelf-break. Part of the organic carbon produced there was consumed by heterotrophic dinoflagellates, adding a trophic level to the food web. While at the center of the gulf, a conspicuous deep chlorophyll maximum would probably add organic matter to the bottom. During the following summer (2009), the ultrafraction represented the largest contribution to total phytoplankton biomass, and was dominated by Synechococcus sp. This, plus the abundance of ciliates, indicate the prevalence of a microbial food web during summer. It has been found that the frontal zones in the north and south of the gulf, favoring high phytoplankton biomass and its maintenance due to high primary production, provide a favorable food environment for impregnated female shrimp in spring, and for larvae during summer.
Fil: Segura, Valeria. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Silva, Ricardo I.. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Luz Clara Tejedor, Moira. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Instituto Franco-Argentino sobre Estudios del Clima y sus Impactos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina
Fil: Martos, Patricia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas; Argentina
Fil: Cozzolino, Ezequiel. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Lutz, Vivian Alicia. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina
description The San Jorge Gulf, and the littoral to its north, is one of the most important fishing grounds for Argentina. Nevertheless, phytoplankton production has been scarcely studied. Here we analyzed during spring (2008) and summer (2009) the phytoplankton biomass, production, and the composition of phytoplankton and protozooplankton; their possible trophic relationships, and physical conditioners. At the south coast of the gulf during spring micro-nano-plankton (diatoms and dinoflagellates) were predominant and responsible for the maximum integrated production, comparable to that reported for the rich Argentinian shelf-break. Part of the organic carbon produced there was consumed by heterotrophic dinoflagellates, adding a trophic level to the food web. While at the center of the gulf, a conspicuous deep chlorophyll maximum would probably add organic matter to the bottom. During the following summer (2009), the ultrafraction represented the largest contribution to total phytoplankton biomass, and was dominated by Synechococcus sp. This, plus the abundance of ciliates, indicate the prevalence of a microbial food web during summer. It has been found that the frontal zones in the north and south of the gulf, favoring high phytoplankton biomass and its maintenance due to high primary production, provide a favorable food environment for impregnated female shrimp in spring, and for larvae during summer.
publishDate 2021
dc.date.none.fl_str_mv 2021-02-19
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/11336/167990
Segura, Valeria; Silva, Ricardo I.; Luz Clara Tejedor, Moira; Martos, Patricia; Cozzolino, Ezequiel; et al.; Primary production and plankton assemblages in the fisheries ground around San Jorge Gulf (Patagonia) during spring and summer; Plankton Society of Japan; Plankton and Benthos Research; 16; 1; 19-2-2021; 24-39
1880-8247
1882-627X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/167990
identifier_str_mv Segura, Valeria; Silva, Ricardo I.; Luz Clara Tejedor, Moira; Martos, Patricia; Cozzolino, Ezequiel; et al.; Primary production and plankton assemblages in the fisheries ground around San Jorge Gulf (Patagonia) during spring and summer; Plankton Society of Japan; Plankton and Benthos Research; 16; 1; 19-2-2021; 24-39
1880-8247
1882-627X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.3800/pbr.16.24
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 Plankton Society of Japan
publisher.none.fl_str_mv Plankton Society of Japan
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 13.13397

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