Phytoplankton of the middle and lower stretches of the Uruguay River

Autores
O'farrell, Ines; Izaguirre, Irina
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Uruguay River is one of the largest lowland rivers of South America. At its middle section, its course is altered by the Salto Grande Reservoir, which constitutes a discontinuity factor affecting the main limnological characteristics and the plankton communities. In this chapter we present a review of the available information on the phytoplankton of the middle and lower stretches since 1978, a short time before the start of the Salto Grande dam operation. The studies show that phytoplankton communities are regulated by two main forces: water discharge and seasonality, with higher phytoplankton abundances usually associated to the warm season, and lower ones to high water discharge. Human activities in the river basin have been inducing changes in the potamoplankton. From the 70’s to the 90’s the studies reported that potamoplankton was dominated by diatoms, with chlorophyceans co-dominating in summer. During the last decade, the phytoplankton assemblage showed a higher proportion of cryptophytes, which together with diatoms and chlorophyceans, conform the typical potamoplankton of the river. Recently, blooms of Cyanobacteria appeared in the river during the summer, mainly near the littoral zone, favoured by a combination of high temperatures and enhanced water column stability.
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
Fil: Izaguirre, Irina. 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
River
Salto Grande Reservoir
Cyanobacteria Blooms
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:11336/31753

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spelling Phytoplankton of the middle and lower stretches of the Uruguay RiverO'farrell, InesIzaguirre, IrinaRiverSalto Grande ReservoirCyanobacteria Bloomshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The Uruguay River is one of the largest lowland rivers of South America. At its middle section, its course is altered by the Salto Grande Reservoir, which constitutes a discontinuity factor affecting the main limnological characteristics and the plankton communities. In this chapter we present a review of the available information on the phytoplankton of the middle and lower stretches since 1978, a short time before the start of the Salto Grande dam operation. The studies show that phytoplankton communities are regulated by two main forces: water discharge and seasonality, with higher phytoplankton abundances usually associated to the warm season, and lower ones to high water discharge. Human activities in the river basin have been inducing changes in the potamoplankton. From the 70’s to the 90’s the studies reported that potamoplankton was dominated by diatoms, with chlorophyceans co-dominating in summer. During the last decade, the phytoplankton assemblage showed a higher proportion of cryptophytes, which together with diatoms and chlorophyceans, conform the typical potamoplankton of the river. Recently, blooms of Cyanobacteria appeared in the river during the summer, mainly near the littoral zone, favoured by a combination of high temperatures and enhanced water column stability.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; ArgentinaFil: Izaguirre, Irina. 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; ArgentinaE Schweizerbartsche Verlags2014-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31753Izaguirre, Irina; O'farrell, Ines; Phytoplankton of the middle and lower stretches of the Uruguay River; E Schweizerbartsche Verlags; Advances in Limnology; 65; 7-2014; 113-1261612-166XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1127/1612-166X/2014/0065-0037info:eu-repo/semantics/altIdentifier/url/http://www.schweizerbart.de/papers/adv_limnology/detail/65/84055/Phytoplankton_of_the_middle_and_lower_stretches_ofinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:28:14Zoai:ri.conicet.gov.ar:11336/31753instacron: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 14:28:14.591CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Phytoplankton of the middle and lower stretches of the Uruguay River
title Phytoplankton of the middle and lower stretches of the Uruguay River
spellingShingle Phytoplankton of the middle and lower stretches of the Uruguay River
O'farrell, Ines
River
Salto Grande Reservoir
Cyanobacteria Blooms
title_short Phytoplankton of the middle and lower stretches of the Uruguay River
title_full Phytoplankton of the middle and lower stretches of the Uruguay River
title_fullStr Phytoplankton of the middle and lower stretches of the Uruguay River
title_full_unstemmed Phytoplankton of the middle and lower stretches of the Uruguay River
title_sort Phytoplankton of the middle and lower stretches of the Uruguay River
dc.creator.none.fl_str_mv O'farrell, Ines
Izaguirre, Irina
author O'farrell, Ines
author_facet O'farrell, Ines
Izaguirre, Irina
author_role author
author2 Izaguirre, Irina
author2_role author
dc.subject.none.fl_str_mv River
Salto Grande Reservoir
Cyanobacteria Blooms
topic River
Salto Grande Reservoir
Cyanobacteria Blooms
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 Uruguay River is one of the largest lowland rivers of South America. At its middle section, its course is altered by the Salto Grande Reservoir, which constitutes a discontinuity factor affecting the main limnological characteristics and the plankton communities. In this chapter we present a review of the available information on the phytoplankton of the middle and lower stretches since 1978, a short time before the start of the Salto Grande dam operation. The studies show that phytoplankton communities are regulated by two main forces: water discharge and seasonality, with higher phytoplankton abundances usually associated to the warm season, and lower ones to high water discharge. Human activities in the river basin have been inducing changes in the potamoplankton. From the 70’s to the 90’s the studies reported that potamoplankton was dominated by diatoms, with chlorophyceans co-dominating in summer. During the last decade, the phytoplankton assemblage showed a higher proportion of cryptophytes, which together with diatoms and chlorophyceans, conform the typical potamoplankton of the river. Recently, blooms of Cyanobacteria appeared in the river during the summer, mainly near the littoral zone, favoured by a combination of high temperatures and enhanced water column stability.
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
Fil: Izaguirre, Irina. 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 Uruguay River is one of the largest lowland rivers of South America. At its middle section, its course is altered by the Salto Grande Reservoir, which constitutes a discontinuity factor affecting the main limnological characteristics and the plankton communities. In this chapter we present a review of the available information on the phytoplankton of the middle and lower stretches since 1978, a short time before the start of the Salto Grande dam operation. The studies show that phytoplankton communities are regulated by two main forces: water discharge and seasonality, with higher phytoplankton abundances usually associated to the warm season, and lower ones to high water discharge. Human activities in the river basin have been inducing changes in the potamoplankton. From the 70’s to the 90’s the studies reported that potamoplankton was dominated by diatoms, with chlorophyceans co-dominating in summer. During the last decade, the phytoplankton assemblage showed a higher proportion of cryptophytes, which together with diatoms and chlorophyceans, conform the typical potamoplankton of the river. Recently, blooms of Cyanobacteria appeared in the river during the summer, mainly near the littoral zone, favoured by a combination of high temperatures and enhanced water column stability.
publishDate 2014
dc.date.none.fl_str_mv 2014-07
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/11336/31753
Izaguirre, Irina; O'farrell, Ines; Phytoplankton of the middle and lower stretches of the Uruguay River; E Schweizerbartsche Verlags; Advances in Limnology; 65; 7-2014; 113-126
1612-166X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/31753
identifier_str_mv Izaguirre, Irina; O'farrell, Ines; Phytoplankton of the middle and lower stretches of the Uruguay River; E Schweizerbartsche Verlags; Advances in Limnology; 65; 7-2014; 113-126
1612-166X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/url/http://www.schweizerbart.de/papers/adv_limnology/detail/65/84055/Phytoplankton_of_the_middle_and_lower_stretches_of
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
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dc.publisher.none.fl_str_mv E Schweizerbartsche Verlags
publisher.none.fl_str_mv E Schweizerbartsche Verlags
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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