Ephemeral parasitism on blooming diatoms in a temperate estuary

Autores
Guinder, Valeria Ana; Carcedo, Maria Cecilia; Buzzi, Natalia Sol; Molinero, Juan Carlos; López Abbate, María Celeste; Fernandez Severini, Melisa Daiana; Biancalana, Florencia; Kühn, Stefanie
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Parasites of phytoplankton influence phytoplankton bloom dynamics and may severely affect the type of food available for higher trophic levels. The incidence of such infection diseases is expected to increase across ecosystems worldwide under scenarios of global change. Here we report a massive parasite infection on two dominant diatoms of the austral winter bloom ? Thalassiosira pacifica and Chaetoceros diadema ? recorded during an extreme precipitation event in the Bahía Blanca Estuary, Argentina. The infection was concomitant with a marked drop in water salinity and affected more than 40 % of host populations. While the parasite on C. didema was not identified, the parasite on T. pacifica was most likely Pirsonia sp., a nanoflagellate with high host specificity. After the intense rainy period and the parasitic infection, the phytoplankton biomass dropped (>80 %) and the community structure shifted to a dominance of smaller species i.e. Thalassiosira curviseriata, T. hibernalis and T. minima. We discuss the implications that these modifications might have in the food web dynamics and the potential relation between precipitation driven-modifications in water properties and parasitism emergence in coastal eutrophic environments.
Fil: Guinder, Valeria Ana. 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: Carcedo, Maria Cecilia. 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: Buzzi, Natalia Sol. 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: Molinero, Juan Carlos. Geomar-Helmholtz Centre for Ocean Research Kiel; Alemania
Fil: López Abbate, María Celeste. 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: Fernandez Severini, Melisa Daiana. 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: Biancalana, Florencia. 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: Kühn, Stefanie. Alfred Wegener Institute For Polar And Marine Research; Alemania
Materia
Phytoplankton
Estuarine Ecology
Eutrophication
Fungi
Salinity
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:11336/28871
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/28871
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ephemeral parasitism on blooming diatoms in a temperate estuaryGuinder, Valeria AnaCarcedo, Maria CeciliaBuzzi, Natalia SolMolinero, Juan CarlosLópez Abbate, María CelesteFernandez Severini, Melisa DaianaBiancalana, FlorenciaKühn, StefaniePhytoplanktonEstuarine EcologyEutrophicationFungiSalinityhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Parasites of phytoplankton influence phytoplankton bloom dynamics and may severely affect the type of food available for higher trophic levels. The incidence of such infection diseases is expected to increase across ecosystems worldwide under scenarios of global change. Here we report a massive parasite infection on two dominant diatoms of the austral winter bloom ? Thalassiosira pacifica and Chaetoceros diadema ? recorded during an extreme precipitation event in the Bahía Blanca Estuary, Argentina. The infection was concomitant with a marked drop in water salinity and affected more than 40 % of host populations. While the parasite on C. didema was not identified, the parasite on T. pacifica was most likely Pirsonia sp., a nanoflagellate with high host specificity. After the intense rainy period and the parasitic infection, the phytoplankton biomass dropped (>80 %) and the community structure shifted to a dominance of smaller species i.e. Thalassiosira curviseriata, T. hibernalis and T. minima. We discuss the implications that these modifications might have in the food web dynamics and the potential relation between precipitation driven-modifications in water properties and parasitism emergence in coastal eutrophic environments.Fil: Guinder, Valeria Ana. 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: Carcedo, Maria Cecilia. 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: Buzzi, Natalia Sol. 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: Molinero, Juan Carlos. Geomar-Helmholtz Centre for Ocean Research Kiel; AlemaniaFil: López Abbate, María Celeste. 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: Fernandez Severini, Melisa Daiana. 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: Biancalana, Florencia. 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: Kühn, Stefanie. Alfred Wegener Institute For Polar And Marine Research; AlemaniaCsiro Publishing2017-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/28871Guinder, Valeria Ana; Carcedo, Maria Cecilia; Buzzi, Natalia Sol; Molinero, Juan Carlos; López Abbate, María Celeste; et al.; Ephemeral parasitism on blooming diatoms in a temperate estuary; Csiro Publishing; Marine and Freshwater Research; 7-2017; 1-61323-1650CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1071/MF17062info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/mf/MF17062info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:29:55Zoai:ri.conicet.gov.ar:11336/28871instacron: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 14:29:55.942CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ephemeral parasitism on blooming diatoms in a temperate estuary
title Ephemeral parasitism on blooming diatoms in a temperate estuary
spellingShingle Ephemeral parasitism on blooming diatoms in a temperate estuary
Guinder, Valeria Ana
Phytoplankton
Estuarine Ecology
Eutrophication
Fungi
Salinity
title_short Ephemeral parasitism on blooming diatoms in a temperate estuary
title_full Ephemeral parasitism on blooming diatoms in a temperate estuary
title_fullStr Ephemeral parasitism on blooming diatoms in a temperate estuary
title_full_unstemmed Ephemeral parasitism on blooming diatoms in a temperate estuary
title_sort Ephemeral parasitism on blooming diatoms in a temperate estuary
dc.creator.none.fl_str_mv Guinder, Valeria Ana
Carcedo, Maria Cecilia
Buzzi, Natalia Sol
Molinero, Juan Carlos
López Abbate, María Celeste
Fernandez Severini, Melisa Daiana
Biancalana, Florencia
Kühn, Stefanie
author Guinder, Valeria Ana
author_facet Guinder, Valeria Ana
Carcedo, Maria Cecilia
Buzzi, Natalia Sol
Molinero, Juan Carlos
López Abbate, María Celeste
Fernandez Severini, Melisa Daiana
Biancalana, Florencia
Kühn, Stefanie
author_role author
author2 Carcedo, Maria Cecilia
Buzzi, Natalia Sol
Molinero, Juan Carlos
López Abbate, María Celeste
Fernandez Severini, Melisa Daiana
Biancalana, Florencia
Kühn, Stefanie
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Phytoplankton
Estuarine Ecology
Eutrophication
Fungi
Salinity
topic Phytoplankton
Estuarine Ecology
Eutrophication
Fungi
Salinity
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Parasites of phytoplankton influence phytoplankton bloom dynamics and may severely affect the type of food available for higher trophic levels. The incidence of such infection diseases is expected to increase across ecosystems worldwide under scenarios of global change. Here we report a massive parasite infection on two dominant diatoms of the austral winter bloom ? Thalassiosira pacifica and Chaetoceros diadema ? recorded during an extreme precipitation event in the Bahía Blanca Estuary, Argentina. The infection was concomitant with a marked drop in water salinity and affected more than 40 % of host populations. While the parasite on C. didema was not identified, the parasite on T. pacifica was most likely Pirsonia sp., a nanoflagellate with high host specificity. After the intense rainy period and the parasitic infection, the phytoplankton biomass dropped (>80 %) and the community structure shifted to a dominance of smaller species i.e. Thalassiosira curviseriata, T. hibernalis and T. minima. We discuss the implications that these modifications might have in the food web dynamics and the potential relation between precipitation driven-modifications in water properties and parasitism emergence in coastal eutrophic environments.
Fil: Guinder, Valeria Ana. 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: Carcedo, Maria Cecilia. 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: Buzzi, Natalia Sol. 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: Molinero, Juan Carlos. Geomar-Helmholtz Centre for Ocean Research Kiel; Alemania
Fil: López Abbate, María Celeste. 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: Fernandez Severini, Melisa Daiana. 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: Biancalana, Florencia. 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: Kühn, Stefanie. Alfred Wegener Institute For Polar And Marine Research; Alemania
description Parasites of phytoplankton influence phytoplankton bloom dynamics and may severely affect the type of food available for higher trophic levels. The incidence of such infection diseases is expected to increase across ecosystems worldwide under scenarios of global change. Here we report a massive parasite infection on two dominant diatoms of the austral winter bloom ? Thalassiosira pacifica and Chaetoceros diadema ? recorded during an extreme precipitation event in the Bahía Blanca Estuary, Argentina. The infection was concomitant with a marked drop in water salinity and affected more than 40 % of host populations. While the parasite on C. didema was not identified, the parasite on T. pacifica was most likely Pirsonia sp., a nanoflagellate with high host specificity. After the intense rainy period and the parasitic infection, the phytoplankton biomass dropped (>80 %) and the community structure shifted to a dominance of smaller species i.e. Thalassiosira curviseriata, T. hibernalis and T. minima. We discuss the implications that these modifications might have in the food web dynamics and the potential relation between precipitation driven-modifications in water properties and parasitism emergence in coastal eutrophic environments.
publishDate 2017
dc.date.none.fl_str_mv 2017-07
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/11336/28871
Guinder, Valeria Ana; Carcedo, Maria Cecilia; Buzzi, Natalia Sol; Molinero, Juan Carlos; López Abbate, María Celeste; et al.; Ephemeral parasitism on blooming diatoms in a temperate estuary; Csiro Publishing; Marine and Freshwater Research; 7-2017; 1-6
1323-1650
CONICET Digital
CONICET
url http://hdl.handle.net/11336/28871
identifier_str_mv Guinder, Valeria Ana; Carcedo, Maria Cecilia; Buzzi, Natalia Sol; Molinero, Juan Carlos; López Abbate, María Celeste; et al.; Ephemeral parasitism on blooming diatoms in a temperate estuary; Csiro Publishing; Marine and Freshwater Research; 7-2017; 1-6
1323-1650
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1071/MF17062
info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/mf/MF17062
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 Csiro Publishing
publisher.none.fl_str_mv Csiro Publishing
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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