Analysing Dam Effects on Fish Communities in Tagus Catchment Rivers (Central Spain)

Solana Gutierrez, Joaquin and García de Jalón Lastra, Diego and Alonso González, Carlos and Gortázar Rubial, Javier (2010). Analysing Dam Effects on Fish Communities in Tagus Catchment Rivers (Central Spain). In: "9th International Conference on the Biology of Fish, 2010", 05/07/2010 - 09/07/2010, Barcelona, España.

Description

Title: Analysing Dam Effects on Fish Communities in Tagus Catchment Rivers (Central Spain)
Author/s:
  • Solana Gutierrez, Joaquin
  • García de Jalón Lastra, Diego
  • Alonso González, Carlos
  • Gortázar Rubial, Javier
Item Type: Presentation at Congress or Conference (Article)
Event Title: 9th International Conference on the Biology of Fish, 2010
Event Dates: 05/07/2010 - 09/07/2010
Event Location: Barcelona, España
Title of Book: Book of abstracts of 9th International Conference on the Biology of Fish, 2010
Date: 2010
Subjects:
Faculty: E.T.S.I. Montes (UPM)
Department: Economía y Gestión Forestal [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (1MB) | Preview

Abstract

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.

More information

Item ID: 7597
DC Identifier: http://oa.upm.es/7597/
OAI Identifier: oai:oa.upm.es:7597
Official URL: http://www.fishbiologycongress.org/
Deposited by: Memoria Investigacion
Deposited on: 05 Jul 2011 10:39
Last Modified: 20 Apr 2016 16:41
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM