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dc.contributor.author
Espínola, Luis Alberto  
dc.contributor.author
Amsler, Mario Luis  
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Paira, Aldo Raul  
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Drago, Edmundo Carlos E.  
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Blettler, Martin Cesar Maria  
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Agostinho, Angelo A.  
dc.date.available
2017-08-22T15:05:02Z  
dc.date.issued
2014-07  
dc.identifier.citation
Espínola, Luis Alberto; Amsler, Mario Luis; Paira, Aldo Raul; Drago, Edmundo Carlos E.; Blettler, Martin Cesar Maria; et al.; Effects of decadal changes in the hydrological regime of the middle reach of the Paraná River (Argentina) on fish densities; Springer; Environmental Biology of Fishes; 97; 7; 7-2014; 757-771  
dc.identifier.issn
0378-1909  
dc.identifier.uri
http://hdl.handle.net/11336/22762  
dc.description.abstract
Changes in fish densities recorded over 14 years (1996-2009) were studied for effects of long-term variation of the hydrologic regime. We collected field data with an echo sounder in scour holes of minor channels draining an area of floodplain in the middle reach of the Paraná River. Fish densities in 2000-2009 were significantly lower than in the previous decade. The decrease was associated with a marked reduction of water levels, flood magnitudes and connectivity of channels with the nearby floodplain lakes. This distortion of the flood pulse likely had an effect on the life history strategies of the fishes. The effects of damming in the upstream basin and other man-made perturbations are minor in the middle reach. However, the decadal alterations of regime are intimately linked to climate fluctuations in the Paraná River basin during the past century. Tendencies of observed fish densities are similar to results reported in literature on the influence on fishes for similar long-term alterations of the flood regime in river flood plain systems.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Springer  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Climate Fluctuations  
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Echo Sounding  
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Fish Density  
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Flood Pulse  
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Scour Holes  
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Oceanografía, Hidrología, Recursos Hídricos  
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Ciencias de la Tierra y relacionadas con el Medio Ambiente  
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CIENCIAS NATURALES Y EXACTAS  
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Bioquímica y Biología Molecular  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Effects of decadal changes in the hydrological regime of the middle reach of the Paraná River (Argentina) on fish densities  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
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info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-07-28T16:25:32Z  
dc.identifier.eissn
1573-5133  
dc.journal.volume
97  
dc.journal.number
7  
dc.journal.pagination
757-771  
dc.journal.pais
Alemania  
dc.journal.ciudad
Berlín  
dc.description.fil
Fil: Espínola, Luis Alberto. 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  
dc.description.fil
Fil: Amsler, Mario Luis. 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  
dc.description.fil
Fil: Paira, Aldo Raul. 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  
dc.description.fil
Fil: Drago, Edmundo Carlos E.. 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  
dc.description.fil
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  
dc.description.fil
Fil: Agostinho, Angelo A.. Universidade Estadual de Maringá; Brasil  
dc.journal.title
Environmental Biology of Fishes  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10641-013-0177-8  
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info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10641-013-0177-8