A study of flow dynamics and implications for benthic fauna in a meander bend of a lowland river

Autores
Sukhodolov, Alexander N.; Blettler, Martin Cesar Maria; Zhang, Jingxin; Sukhodolova, Tatiana; Nützmann, Gunnar
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Channel curvature and riffle-pool bathymetry in meandering streams control complex hydrodynamic and morphodynamic processes. This study investigates how spatial and temporal heterogeneities in flow hydraulics influence benthic fauna in a meander bend of a lowland sand-bed river. Spatial heterogeneity of riverbed morphology and secondary flow, induced by channel curvature, make pools hydraulically more diverse compared with riffles. Numerical simulations demonstrate that velocity reversal between riffles and pools in this meander bend produces spatially variable flow with complex temporal variations. Patterns of macro-invertebrates indicate an increase in population density from riffle to pool, reflecting an increase in diversity of abiotic factors. For most invertebrate species the observed patterns persisted during temporal variations of the flow. Considerable changes were observed only in some groups with specific preferences.
Fil: Sukhodolov, Alexander N.. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Alemania
Fil: Blettler, Martin Cesar Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Zhang, Jingxin. Shanghai Jiao Tong University; China
Fil: Sukhodolova, Tatiana. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Alemania
Fil: Nützmann, Gunnar. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Alemania
Materia
Benthic Fauna
Eco-Hydraulics
Invertebrates
Meander Bend
Turbulence
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:11336/50581
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling A study of flow dynamics and implications for benthic fauna in a meander bend of a lowland riverSukhodolov, Alexander N.Blettler, Martin Cesar MariaZhang, JingxinSukhodolova, TatianaNützmann, GunnarBenthic FaunaEco-HydraulicsInvertebratesMeander BendTurbulencehttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Channel curvature and riffle-pool bathymetry in meandering streams control complex hydrodynamic and morphodynamic processes. This study investigates how spatial and temporal heterogeneities in flow hydraulics influence benthic fauna in a meander bend of a lowland sand-bed river. Spatial heterogeneity of riverbed morphology and secondary flow, induced by channel curvature, make pools hydraulically more diverse compared with riffles. Numerical simulations demonstrate that velocity reversal between riffles and pools in this meander bend produces spatially variable flow with complex temporal variations. Patterns of macro-invertebrates indicate an increase in population density from riffle to pool, reflecting an increase in diversity of abiotic factors. For most invertebrate species the observed patterns persisted during temporal variations of the flow. Considerable changes were observed only in some groups with specific preferences.Fil: Sukhodolov, Alexander N.. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; AlemaniaFil: Blettler, Martin Cesar Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Zhang, Jingxin. Shanghai Jiao Tong University; ChinaFil: Sukhodolova, Tatiana. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; AlemaniaFil: Nützmann, Gunnar. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; AlemaniaInt Assoc Hydraulic Research2015-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/50581Sukhodolov, Alexander N.; Blettler, Martin Cesar Maria; Zhang, Jingxin; Sukhodolova, Tatiana; Nützmann, Gunnar; A study of flow dynamics and implications for benthic fauna in a meander bend of a lowland river; Int Assoc Hydraulic Research; Journal of Hydraulic Research; 53; 4; 7-2015; 488-5040022-1686CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/00221686.2015.1055598info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/00221686.2015.1055598info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:53:17Zoai:ri.conicet.gov.ar:11336/50581instacron: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 09:53:18.159CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A study of flow dynamics and implications for benthic fauna in a meander bend of a lowland river
title A study of flow dynamics and implications for benthic fauna in a meander bend of a lowland river
spellingShingle A study of flow dynamics and implications for benthic fauna in a meander bend of a lowland river
Sukhodolov, Alexander N.
Benthic Fauna
Eco-Hydraulics
Invertebrates
Meander Bend
Turbulence
title_short A study of flow dynamics and implications for benthic fauna in a meander bend of a lowland river
title_full A study of flow dynamics and implications for benthic fauna in a meander bend of a lowland river
title_fullStr A study of flow dynamics and implications for benthic fauna in a meander bend of a lowland river
title_full_unstemmed A study of flow dynamics and implications for benthic fauna in a meander bend of a lowland river
title_sort A study of flow dynamics and implications for benthic fauna in a meander bend of a lowland river
dc.creator.none.fl_str_mv Sukhodolov, Alexander N.
Blettler, Martin Cesar Maria
Zhang, Jingxin
Sukhodolova, Tatiana
Nützmann, Gunnar
author Sukhodolov, Alexander N.
author_facet Sukhodolov, Alexander N.
Blettler, Martin Cesar Maria
Zhang, Jingxin
Sukhodolova, Tatiana
Nützmann, Gunnar
author_role author
author2 Blettler, Martin Cesar Maria
Zhang, Jingxin
Sukhodolova, Tatiana
Nützmann, Gunnar
author2_role author
author
author
author
dc.subject.none.fl_str_mv Benthic Fauna
Eco-Hydraulics
Invertebrates
Meander Bend
Turbulence
topic Benthic Fauna
Eco-Hydraulics
Invertebrates
Meander Bend
Turbulence
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Channel curvature and riffle-pool bathymetry in meandering streams control complex hydrodynamic and morphodynamic processes. This study investigates how spatial and temporal heterogeneities in flow hydraulics influence benthic fauna in a meander bend of a lowland sand-bed river. Spatial heterogeneity of riverbed morphology and secondary flow, induced by channel curvature, make pools hydraulically more diverse compared with riffles. Numerical simulations demonstrate that velocity reversal between riffles and pools in this meander bend produces spatially variable flow with complex temporal variations. Patterns of macro-invertebrates indicate an increase in population density from riffle to pool, reflecting an increase in diversity of abiotic factors. For most invertebrate species the observed patterns persisted during temporal variations of the flow. Considerable changes were observed only in some groups with specific preferences.
Fil: Sukhodolov, Alexander N.. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Alemania
Fil: Blettler, Martin Cesar Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Zhang, Jingxin. Shanghai Jiao Tong University; China
Fil: Sukhodolova, Tatiana. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Alemania
Fil: Nützmann, Gunnar. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Alemania
description Channel curvature and riffle-pool bathymetry in meandering streams control complex hydrodynamic and morphodynamic processes. This study investigates how spatial and temporal heterogeneities in flow hydraulics influence benthic fauna in a meander bend of a lowland sand-bed river. Spatial heterogeneity of riverbed morphology and secondary flow, induced by channel curvature, make pools hydraulically more diverse compared with riffles. Numerical simulations demonstrate that velocity reversal between riffles and pools in this meander bend produces spatially variable flow with complex temporal variations. Patterns of macro-invertebrates indicate an increase in population density from riffle to pool, reflecting an increase in diversity of abiotic factors. For most invertebrate species the observed patterns persisted during temporal variations of the flow. Considerable changes were observed only in some groups with specific preferences.
publishDate 2015
dc.date.none.fl_str_mv 2015-07
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/11336/50581
Sukhodolov, Alexander N.; Blettler, Martin Cesar Maria; Zhang, Jingxin; Sukhodolova, Tatiana; Nützmann, Gunnar; A study of flow dynamics and implications for benthic fauna in a meander bend of a lowland river; Int Assoc Hydraulic Research; Journal of Hydraulic Research; 53; 4; 7-2015; 488-504
0022-1686
CONICET Digital
CONICET
url http://hdl.handle.net/11336/50581
identifier_str_mv Sukhodolov, Alexander N.; Blettler, Martin Cesar Maria; Zhang, Jingxin; Sukhodolova, Tatiana; Nützmann, Gunnar; A study of flow dynamics and implications for benthic fauna in a meander bend of a lowland river; Int Assoc Hydraulic Research; Journal of Hydraulic Research; 53; 4; 7-2015; 488-504
0022-1686
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/00221686.2015.1055598
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/00221686.2015.1055598
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 Int Assoc Hydraulic Research
publisher.none.fl_str_mv Int Assoc Hydraulic Research
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_ 1844613629821845504
score 13.070432

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