As productive and slow as a stream can be-the metabolism of a Pampean stream

Autores
Acuña, V.; Vilches, Carolina; Giorgi, Adonis David Nazareno
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Stream metabolism at both ecosystem and functional-compartment scales was measured in a low-order Pampean stream (La Choza) over a 3-wk period to characterize metabolic rates and discern the contribution of each functional compartment (submerged macrophytes, benthos, floating macroalgae, water column, and hyporheic zone) to ecosystem metabolism. La Choza stream is an autotrophic ecosystem during low flows and has gross primary production rates of up to 22 g O2 m-2d-1, which are among the highest reported in the literature and set an upper bound on how productive streams can be in the absence of light and nutrient limitations. Floating macroalgae provided most of the primary production (30-90%), whereas the hyporheic zone provided most of the ecosystem respiration (40-80%). The differential effects of high flows on the different functional compartments depressed the production:respiration ratio, suggesting a strong relationship between flow and metabolism. Thus, low flows enhanced primary production and led to diel dissolved O2 concentration oscillations between 0 and 25 g O2/m3. In contrast, high flow depressed primary production by an order of magnitude and increased ecosystem respiration. High production rates during the low-flow period and extreme physicochemical conditions (anoxia for 7-8 h on a daily basis) may be typical in this type of ecosystem during extended low-flow periods.
Fil: Acuña, V.. Swiss Federal Institute of Aquatic Sciences and Technology; Suiza. Universidad de Girona; España
Fil: Vilches, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Universidad Nacional de Luján. Instituto de Ecología y Desarrollo Sustentable; Argentina
Fil: Giorgi, Adonis David Nazareno. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Universidad Nacional de Luján. Instituto de Ecología y Desarrollo Sustentable; Argentina
Materia
ECOHYDROLOGY
ECOSYSTEM METABOLISM
METABOLISM PARTITIONING
PAMPEAN STREAMS
STREAM ECOLOGY
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:11336/192501
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/192501
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling As productive and slow as a stream can be-the metabolism of a Pampean streamAcuña, V.Vilches, CarolinaGiorgi, Adonis David NazarenoECOHYDROLOGYECOSYSTEM METABOLISMMETABOLISM PARTITIONINGPAMPEAN STREAMSSTREAM ECOLOGYhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Stream metabolism at both ecosystem and functional-compartment scales was measured in a low-order Pampean stream (La Choza) over a 3-wk period to characterize metabolic rates and discern the contribution of each functional compartment (submerged macrophytes, benthos, floating macroalgae, water column, and hyporheic zone) to ecosystem metabolism. La Choza stream is an autotrophic ecosystem during low flows and has gross primary production rates of up to 22 g O2 m-2d-1, which are among the highest reported in the literature and set an upper bound on how productive streams can be in the absence of light and nutrient limitations. Floating macroalgae provided most of the primary production (30-90%), whereas the hyporheic zone provided most of the ecosystem respiration (40-80%). The differential effects of high flows on the different functional compartments depressed the production:respiration ratio, suggesting a strong relationship between flow and metabolism. Thus, low flows enhanced primary production and led to diel dissolved O2 concentration oscillations between 0 and 25 g O2/m3. In contrast, high flow depressed primary production by an order of magnitude and increased ecosystem respiration. High production rates during the low-flow period and extreme physicochemical conditions (anoxia for 7-8 h on a daily basis) may be typical in this type of ecosystem during extended low-flow periods.Fil: Acuña, V.. Swiss Federal Institute of Aquatic Sciences and Technology; Suiza. Universidad de Girona; EspañaFil: Vilches, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Universidad Nacional de Luján. Instituto de Ecología y Desarrollo Sustentable; ArgentinaFil: Giorgi, Adonis David Nazareno. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Universidad Nacional de Luján. Instituto de Ecología y Desarrollo Sustentable; ArgentinaNorth Amer Benthological Soc2011-03info: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/11336/192501Acuña, V.; Vilches, Carolina; Giorgi, Adonis David Nazareno; As productive and slow as a stream can be-the metabolism of a Pampean stream; North Amer Benthological Soc; Journal Of The North American Benthological Society; 30; 1; 3-2011; 71-830887-3593CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.journals.uchicago.edu/doi/full/10.1899/09-082.1info:eu-repo/semantics/altIdentifier/doi/10.1899/09-082.1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:33:05Zoai:ri.conicet.gov.ar:11336/192501instacron: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:34982025-10-22 11:33:05.485CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv As productive and slow as a stream can be-the metabolism of a Pampean stream
title As productive and slow as a stream can be-the metabolism of a Pampean stream
spellingShingle As productive and slow as a stream can be-the metabolism of a Pampean stream
Acuña, V.
ECOHYDROLOGY
ECOSYSTEM METABOLISM
METABOLISM PARTITIONING
PAMPEAN STREAMS
STREAM ECOLOGY
title_short As productive and slow as a stream can be-the metabolism of a Pampean stream
title_full As productive and slow as a stream can be-the metabolism of a Pampean stream
title_fullStr As productive and slow as a stream can be-the metabolism of a Pampean stream
title_full_unstemmed As productive and slow as a stream can be-the metabolism of a Pampean stream
title_sort As productive and slow as a stream can be-the metabolism of a Pampean stream
dc.creator.none.fl_str_mv Acuña, V.
Vilches, Carolina
Giorgi, Adonis David Nazareno
author Acuña, V.
author_facet Acuña, V.
Vilches, Carolina
Giorgi, Adonis David Nazareno
author_role author
author2 Vilches, Carolina
Giorgi, Adonis David Nazareno
author2_role author
author
dc.subject.none.fl_str_mv ECOHYDROLOGY
ECOSYSTEM METABOLISM
METABOLISM PARTITIONING
PAMPEAN STREAMS
STREAM ECOLOGY
topic ECOHYDROLOGY
ECOSYSTEM METABOLISM
METABOLISM PARTITIONING
PAMPEAN STREAMS
STREAM ECOLOGY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Stream metabolism at both ecosystem and functional-compartment scales was measured in a low-order Pampean stream (La Choza) over a 3-wk period to characterize metabolic rates and discern the contribution of each functional compartment (submerged macrophytes, benthos, floating macroalgae, water column, and hyporheic zone) to ecosystem metabolism. La Choza stream is an autotrophic ecosystem during low flows and has gross primary production rates of up to 22 g O2 m-2d-1, which are among the highest reported in the literature and set an upper bound on how productive streams can be in the absence of light and nutrient limitations. Floating macroalgae provided most of the primary production (30-90%), whereas the hyporheic zone provided most of the ecosystem respiration (40-80%). The differential effects of high flows on the different functional compartments depressed the production:respiration ratio, suggesting a strong relationship between flow and metabolism. Thus, low flows enhanced primary production and led to diel dissolved O2 concentration oscillations between 0 and 25 g O2/m3. In contrast, high flow depressed primary production by an order of magnitude and increased ecosystem respiration. High production rates during the low-flow period and extreme physicochemical conditions (anoxia for 7-8 h on a daily basis) may be typical in this type of ecosystem during extended low-flow periods.
Fil: Acuña, V.. Swiss Federal Institute of Aquatic Sciences and Technology; Suiza. Universidad de Girona; España
Fil: Vilches, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Universidad Nacional de Luján. Instituto de Ecología y Desarrollo Sustentable; Argentina
Fil: Giorgi, Adonis David Nazareno. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Universidad Nacional de Luján. Instituto de Ecología y Desarrollo Sustentable; Argentina
description Stream metabolism at both ecosystem and functional-compartment scales was measured in a low-order Pampean stream (La Choza) over a 3-wk period to characterize metabolic rates and discern the contribution of each functional compartment (submerged macrophytes, benthos, floating macroalgae, water column, and hyporheic zone) to ecosystem metabolism. La Choza stream is an autotrophic ecosystem during low flows and has gross primary production rates of up to 22 g O2 m-2d-1, which are among the highest reported in the literature and set an upper bound on how productive streams can be in the absence of light and nutrient limitations. Floating macroalgae provided most of the primary production (30-90%), whereas the hyporheic zone provided most of the ecosystem respiration (40-80%). The differential effects of high flows on the different functional compartments depressed the production:respiration ratio, suggesting a strong relationship between flow and metabolism. Thus, low flows enhanced primary production and led to diel dissolved O2 concentration oscillations between 0 and 25 g O2/m3. In contrast, high flow depressed primary production by an order of magnitude and increased ecosystem respiration. High production rates during the low-flow period and extreme physicochemical conditions (anoxia for 7-8 h on a daily basis) may be typical in this type of ecosystem during extended low-flow periods.
publishDate 2011
dc.date.none.fl_str_mv 2011-03
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/11336/192501
Acuña, V.; Vilches, Carolina; Giorgi, Adonis David Nazareno; As productive and slow as a stream can be-the metabolism of a Pampean stream; North Amer Benthological Soc; Journal Of The North American Benthological Society; 30; 1; 3-2011; 71-83
0887-3593
CONICET Digital
CONICET
url http://hdl.handle.net/11336/192501
identifier_str_mv Acuña, V.; Vilches, Carolina; Giorgi, Adonis David Nazareno; As productive and slow as a stream can be-the metabolism of a Pampean stream; North Amer Benthological Soc; Journal Of The North American Benthological Society; 30; 1; 3-2011; 71-83
0887-3593
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.journals.uchicago.edu/doi/full/10.1899/09-082.1
info:eu-repo/semantics/altIdentifier/doi/10.1899/09-082.1
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
dc.publisher.none.fl_str_mv North Amer Benthological Soc
publisher.none.fl_str_mv North Amer Benthological Soc
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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score 12.982451

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