Microbial planktonic communities of freshwater environments from Tierra del Fuego: dominant trophic strategies in lakes with contrasting features

We analysed the structure of the microbial plankton communities of different types of freshwater environments from the southernmost region of South America (Tierra del Fuego). Water bodies were grouped in four categories: humic lakes, clear oligotrophic lakes, beaver ponds and steppe shallow lakes,...

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Detalles Bibliográficos
Autores: Saad, Juan Francisco, Schiaffino, María Romina, Vinocur, Alicia Liliana, O'farrell, Ines, Tell, Hector Guillermo, Izaguirre, Irina
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/19838
Acceso en línea:http://hdl.handle.net/11336/19838
Access Level:acceso abierto
Palabra clave:Phytoplankton
Microbial Communities
Lakes
Trophic-Doc Paradigm
Tierra del Fuego
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
id AR_06d35bc2c9edba6c83c8fc2f765bd610
oai_identifier_str oai:ri.conicet.gov.ar:11336/19838
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv Microbial planktonic communities of freshwater environments from Tierra del Fuego: dominant trophic strategies in lakes with contrasting features
title Microbial planktonic communities of freshwater environments from Tierra del Fuego: dominant trophic strategies in lakes with contrasting features
spellingShingle Microbial planktonic communities of freshwater environments from Tierra del Fuego: dominant trophic strategies in lakes with contrasting features
Saad, Juan Francisco
Phytoplankton
Microbial Communities
Lakes
Trophic-Doc Paradigm
Tierra del Fuego
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
title_short Microbial planktonic communities of freshwater environments from Tierra del Fuego: dominant trophic strategies in lakes with contrasting features
title_full Microbial planktonic communities of freshwater environments from Tierra del Fuego: dominant trophic strategies in lakes with contrasting features
title_fullStr Microbial planktonic communities of freshwater environments from Tierra del Fuego: dominant trophic strategies in lakes with contrasting features
title_full_unstemmed Microbial planktonic communities of freshwater environments from Tierra del Fuego: dominant trophic strategies in lakes with contrasting features
title_sort Microbial planktonic communities of freshwater environments from Tierra del Fuego: dominant trophic strategies in lakes with contrasting features
dc.creator.none.fl_str_mv Saad, Juan Francisco
Schiaffino, María Romina
Vinocur, Alicia Liliana
O'farrell, Ines
Tell, Hector Guillermo
Izaguirre, Irina
author Saad, Juan Francisco
author_facet Saad, Juan Francisco
Schiaffino, María Romina
Vinocur, Alicia Liliana
O'farrell, Ines
Tell, Hector Guillermo
Izaguirre, Irina
author_role author
author2 Schiaffino, María Romina
Vinocur, Alicia Liliana
O'farrell, Ines
Tell, Hector Guillermo
Izaguirre, Irina
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Phytoplankton
Microbial Communities
Lakes
Trophic-Doc Paradigm
Tierra del Fuego
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
topic Phytoplankton
Microbial Communities
Lakes
Trophic-Doc Paradigm
Tierra del Fuego
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
description We analysed the structure of the microbial plankton communities of different types of freshwater environments from the southernmost region of South America (Tierra del Fuego). Water bodies were grouped in four categories: humic lakes, clear oligotrophic lakes, beaver ponds and steppe shallow lakes, which differed in their nutrient and dissolved organic carbon (DOC) contents. We tested if microbial planktonic communities were different among lakes with dissimilar nutrient and DOC concentrations, analysing to what extent the known large-scale patterns of lake trophic structure applies to a diverse but localized set of lakes. We found that mixotrophs dominated over strict autotrophs in both humic and clear oligotrophic systems, whereas in eutrophic lakes autotrophy was a successful strategy. The functional phytoplankton approach also allowed the separation between oligotrophic (clear and humic) and eutrophic systems, with different functional groups. The lowest abundances of picoplankton were found in oligotrophic lakes, picoeukaryotes being more abundant than picocyanobacteria in beaver ponds and humic lakes. Our results show that in low nutrient environments, mixotrophic strategies thrive over strict autotrophs suggesting the paramount importance of the microbial loop when compared with high trophic status systems where the prevalence of autotrophy indicates that the energy flux depends on phytoplankton.
publishDate 2013
dc.date.none.fl_str_mv 2013-07
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/11336/19838
Saad, Juan Francisco; Schiaffino, María Romina; Vinocur, Alicia Liliana; O'farrell, Ines; Tell, Hector Guillermo; et al.; Microbial planktonic communities of freshwater environments from Tierra del Fuego: dominant trophic strategies in lakes with contrasting features; Oxford University Press; Journal of Plankton Research; 35; 6; 7-2013; 1220-1233
0142-7873
CONICET Digital
CONICET
url http://hdl.handle.net/11336/19838
identifier_str_mv Saad, Juan Francisco; Schiaffino, María Romina; Vinocur, Alicia Liliana; O'farrell, Ines; Tell, Hector Guillermo; et al.; Microbial planktonic communities of freshwater environments from Tierra del Fuego: dominant trophic strategies in lakes with contrasting features; Oxford University Press; Journal of Plankton Research; 35; 6; 7-2013; 1220-1233
0142-7873
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/plankt/fbt075
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/plankt/article-lookup/doi/10.1093/plankt/fbt075
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
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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_ 1799195192226480128
spelling Microbial planktonic communities of freshwater environments from Tierra del Fuego: dominant trophic strategies in lakes with contrasting featuresSaad, Juan FranciscoSchiaffino, María RominaVinocur, Alicia LilianaO'farrell, InesTell, Hector GuillermoIzaguirre, IrinaPhytoplanktonMicrobial CommunitiesLakesTrophic-Doc ParadigmTierra del Fuegohttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We analysed the structure of the microbial plankton communities of different types of freshwater environments from the southernmost region of South America (Tierra del Fuego). Water bodies were grouped in four categories: humic lakes, clear oligotrophic lakes, beaver ponds and steppe shallow lakes, which differed in their nutrient and dissolved organic carbon (DOC) contents. We tested if microbial planktonic communities were different among lakes with dissimilar nutrient and DOC concentrations, analysing to what extent the known large-scale patterns of lake trophic structure applies to a diverse but localized set of lakes. We found that mixotrophs dominated over strict autotrophs in both humic and clear oligotrophic systems, whereas in eutrophic lakes autotrophy was a successful strategy. The functional phytoplankton approach also allowed the separation between oligotrophic (clear and humic) and eutrophic systems, with different functional groups. The lowest abundances of picoplankton were found in oligotrophic lakes, picoeukaryotes being more abundant than picocyanobacteria in beaver ponds and humic lakes. Our results show that in low nutrient environments, mixotrophic strategies thrive over strict autotrophs suggesting the paramount importance of the microbial loop when compared with high trophic status systems where the prevalence of autotrophy indicates that the energy flux depends on phytoplankton.Fil: Saad, Juan Francisco. 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: Schiaffino, María Romina. 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: Vinocur, Alicia Liliana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; 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; ArgentinaFil: Tell, Hector Guillermo. 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; ArgentinaOxford University Press2013-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/19838Saad, Juan Francisco; Schiaffino, María Romina; Vinocur, Alicia Liliana; O'farrell, Ines; Tell, Hector Guillermo; et al.; Microbial planktonic communities of freshwater environments from Tierra del Fuego: dominant trophic strategies in lakes with contrasting features; Oxford University Press; Journal of Plankton Research; 35; 6; 7-2013; 1220-12330142-7873CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/plankt/fbt075info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/plankt/article-lookup/doi/10.1093/plankt/fbt075info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:45:48Zoai:ri.conicet.gov.ar:11336/19838instacron: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:34982024-05-08 13:45:48.419CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
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