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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/28871
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:40:16Zoai: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:34982025-09-29 09:40:17.21CONICET 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 |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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13.070432 |