Influence of light and mixing regime on bloom-forming phytoplankton in a subtropical reservoir

Autores
Bordet, F.; Fontanarrosa, María Soledad; O'farrell, Ines
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The joint influence of local climatic and hydrological conditions on the vertical distribution of bloom-forming phytoplankton was analysed for the Salto Grande Reservoir, a large and enriched subtropical system on the Uruguay River (South America). Threshold of physical factors hindering or impeding blooms was obtained and then contrasted with worldwide observations in reservoirs at similar latitudes. Inflowing discharge, water level, and wind velocity intensity interacted with temperature, producing mixing and light regimes with overriding influence on the vertical distribution of Microcystis spp., Dolichospermum spp., and Ceratium furcoides, hence affecting their maximum abundance and biomass. Cyanobacteria (Microcystis > Dolichospermum) showed the most heterogeneous distribution in the depth profile during strong thermal stratification, showing surface scums prone to horizontal displacements. C. furcoides was evenly distributed in the water column in correspondence to windy periods. Blooms of both Cyanobacteria and dinoflagellates did not occur when inflowing discharge exceeded 10,000 m3 s−1. Nutrient influence on phytoplankton vertical distribution appeared strongly subordinate to the effect of light. Highest microcystin concentrations (>WHO alert Level 2) occurred especially after blooms collapsed during highly turbulent situations.
Fil: Bordet, F.. Ministerio de Rel.ext. Comercio Intern. y Culto. Comision Técnica Mixta de Salto Grande; Argentina
Fil: Fontanarrosa, María Soledad. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto Multidisciplinario de Ecosistemas y Desarrollo Sustentable; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: O'farrell, Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Materia
Bloom Ecology
Eco-Strategies
Physical Factors
Subtropical Reservoirs
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:11336/58927
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Influence of light and mixing regime on bloom-forming phytoplankton in a subtropical reservoirBordet, F.Fontanarrosa, María SoledadO'farrell, InesBloom EcologyEco-StrategiesPhysical FactorsSubtropical Reservoirshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The joint influence of local climatic and hydrological conditions on the vertical distribution of bloom-forming phytoplankton was analysed for the Salto Grande Reservoir, a large and enriched subtropical system on the Uruguay River (South America). Threshold of physical factors hindering or impeding blooms was obtained and then contrasted with worldwide observations in reservoirs at similar latitudes. Inflowing discharge, water level, and wind velocity intensity interacted with temperature, producing mixing and light regimes with overriding influence on the vertical distribution of Microcystis spp., Dolichospermum spp., and Ceratium furcoides, hence affecting their maximum abundance and biomass. Cyanobacteria (Microcystis > Dolichospermum) showed the most heterogeneous distribution in the depth profile during strong thermal stratification, showing surface scums prone to horizontal displacements. C. furcoides was evenly distributed in the water column in correspondence to windy periods. Blooms of both Cyanobacteria and dinoflagellates did not occur when inflowing discharge exceeded 10,000 m3 s−1. Nutrient influence on phytoplankton vertical distribution appeared strongly subordinate to the effect of light. Highest microcystin concentrations (>WHO alert Level 2) occurred especially after blooms collapsed during highly turbulent situations.Fil: Bordet, F.. Ministerio de Rel.ext. Comercio Intern. y Culto. Comision Técnica Mixta de Salto Grande; ArgentinaFil: Fontanarrosa, María Soledad. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto Multidisciplinario de Ecosistemas y Desarrollo Sustentable; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: O'farrell, Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaJohn Wiley & Sons Ltd2017-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/58927Bordet, F.; Fontanarrosa, María Soledad; O'farrell, Ines; Influence of light and mixing regime on bloom-forming phytoplankton in a subtropical reservoir; John Wiley & Sons Ltd; River Research And Applications; 33; 8; 10-2017; 1315-13261535-1459CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/rra.3189info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/rra.3189info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:55:36Zoai:ri.conicet.gov.ar:11336/58927instacron: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 09:55:36.471CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of light and mixing regime on bloom-forming phytoplankton in a subtropical reservoir
title Influence of light and mixing regime on bloom-forming phytoplankton in a subtropical reservoir
spellingShingle Influence of light and mixing regime on bloom-forming phytoplankton in a subtropical reservoir
Bordet, F.
Bloom Ecology
Eco-Strategies
Physical Factors
Subtropical Reservoirs
title_short Influence of light and mixing regime on bloom-forming phytoplankton in a subtropical reservoir
title_full Influence of light and mixing regime on bloom-forming phytoplankton in a subtropical reservoir
title_fullStr Influence of light and mixing regime on bloom-forming phytoplankton in a subtropical reservoir
title_full_unstemmed Influence of light and mixing regime on bloom-forming phytoplankton in a subtropical reservoir
title_sort Influence of light and mixing regime on bloom-forming phytoplankton in a subtropical reservoir
dc.creator.none.fl_str_mv Bordet, F.
Fontanarrosa, María Soledad
O'farrell, Ines
author Bordet, F.
author_facet Bordet, F.
Fontanarrosa, María Soledad
O'farrell, Ines
author_role author
author2 Fontanarrosa, María Soledad
O'farrell, Ines
author2_role author
author
dc.subject.none.fl_str_mv Bloom Ecology
Eco-Strategies
Physical Factors
Subtropical Reservoirs
topic Bloom Ecology
Eco-Strategies
Physical Factors
Subtropical Reservoirs
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The joint influence of local climatic and hydrological conditions on the vertical distribution of bloom-forming phytoplankton was analysed for the Salto Grande Reservoir, a large and enriched subtropical system on the Uruguay River (South America). Threshold of physical factors hindering or impeding blooms was obtained and then contrasted with worldwide observations in reservoirs at similar latitudes. Inflowing discharge, water level, and wind velocity intensity interacted with temperature, producing mixing and light regimes with overriding influence on the vertical distribution of Microcystis spp., Dolichospermum spp., and Ceratium furcoides, hence affecting their maximum abundance and biomass. Cyanobacteria (Microcystis > Dolichospermum) showed the most heterogeneous distribution in the depth profile during strong thermal stratification, showing surface scums prone to horizontal displacements. C. furcoides was evenly distributed in the water column in correspondence to windy periods. Blooms of both Cyanobacteria and dinoflagellates did not occur when inflowing discharge exceeded 10,000 m3 s−1. Nutrient influence on phytoplankton vertical distribution appeared strongly subordinate to the effect of light. Highest microcystin concentrations (>WHO alert Level 2) occurred especially after blooms collapsed during highly turbulent situations.
Fil: Bordet, F.. Ministerio de Rel.ext. Comercio Intern. y Culto. Comision Técnica Mixta de Salto Grande; Argentina
Fil: Fontanarrosa, María Soledad. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto Multidisciplinario de Ecosistemas y Desarrollo Sustentable; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: O'farrell, Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
description The joint influence of local climatic and hydrological conditions on the vertical distribution of bloom-forming phytoplankton was analysed for the Salto Grande Reservoir, a large and enriched subtropical system on the Uruguay River (South America). Threshold of physical factors hindering or impeding blooms was obtained and then contrasted with worldwide observations in reservoirs at similar latitudes. Inflowing discharge, water level, and wind velocity intensity interacted with temperature, producing mixing and light regimes with overriding influence on the vertical distribution of Microcystis spp., Dolichospermum spp., and Ceratium furcoides, hence affecting their maximum abundance and biomass. Cyanobacteria (Microcystis > Dolichospermum) showed the most heterogeneous distribution in the depth profile during strong thermal stratification, showing surface scums prone to horizontal displacements. C. furcoides was evenly distributed in the water column in correspondence to windy periods. Blooms of both Cyanobacteria and dinoflagellates did not occur when inflowing discharge exceeded 10,000 m3 s−1. Nutrient influence on phytoplankton vertical distribution appeared strongly subordinate to the effect of light. Highest microcystin concentrations (>WHO alert Level 2) occurred especially after blooms collapsed during highly turbulent situations.
publishDate 2017
dc.date.none.fl_str_mv 2017-10
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/11336/58927
Bordet, F.; Fontanarrosa, María Soledad; O'farrell, Ines; Influence of light and mixing regime on bloom-forming phytoplankton in a subtropical reservoir; John Wiley & Sons Ltd; River Research And Applications; 33; 8; 10-2017; 1315-1326
1535-1459
CONICET Digital
CONICET
url http://hdl.handle.net/11336/58927
identifier_str_mv Bordet, F.; Fontanarrosa, María Soledad; O'farrell, Ines; Influence of light and mixing regime on bloom-forming phytoplankton in a subtropical reservoir; John Wiley & Sons Ltd; River Research And Applications; 33; 8; 10-2017; 1315-1326
1535-1459
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/rra.3189
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/rra.3189
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 John Wiley & Sons Ltd
publisher.none.fl_str_mv John Wiley & Sons Ltd
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_ 1842269354658365440
score 13.13397

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