Memorias de investigación
Ponencias en congresos:
Analysing Dam Effects on Fish Communities in Tagus Catchment Rivers, IX International Congress on Fish Biology, Barcelona
Año:2010
Áreas de investigación
  • Hidrología,
  • Zoología
Datos
Descripción
This paper deals with the assessment of effects caused by dam water regulations on fish communities in some sites of Tagus catchment. A set of 88 electro-fishing river samples has been analysed to detect significant effects on biodiversity. Ten different indexes related to species richness and abundance, which had been already tested in Central European regions (EFI+), were calculated. By means of statistical comparison between points located upstream and downstream to dams some significant effects have been obtained. These are related to total richness and total abundance, density of intolerant species to habitat degradation, density of oxygen depletion intolerant species, richness in number of species of rheophilic reproduction habitat and density of species with lithophilic reproduction habitat. The outcomes showed that population effects depend on dam proximity and hydro-morphological traits of river reaches. In spite of the latter, density in intolerant to oxygen species, density in habitat degradation species and richness in rheophilic reproduction habitat species showed significant effects that should be imputed to dam activities.
Internacional
Si
Nombre congreso
IX International Congress on Fish Biology, Barcelona
Tipo de participación
960
Lugar del congreso
Barcelona
Revisores
Si
ISBN o ISSN
0002-8487
DOI
Fecha inicio congreso
05/07/2010
Fecha fin congreso
09/07/2010
Desde la página
240
Hasta la página
240
Título de las actas
2010 Fish Biology Congress Abstracts
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Hidrobiología