Benthic diatom and macroinvertebrate communities from the impacted bypass channel of Poutès, upper Allier River (France): preliminary results before the dam removal. - Université Clermont Auvergne Accéder directement au contenu
Communication Dans Un Congrès Année : 2015

Benthic diatom and macroinvertebrate communities from the impacted bypass channel of Poutès, upper Allier River (France): preliminary results before the dam removal.

Résumé

For the first time in France a dam is being removed in order to restore ecological and sediment continuity and to allow salmon migration. This modification of the dam of Poutès configuration allows the establishment of a long-term study. The first step is the evaluation of the geomorphological, sedimentary and ecological characteristics before the works in a reach of 21km including the bypassed section. This analysis is based on the study of diatoms and benthic macroinvertebrates collected upstream of the dam, in the bypassed section, and downstream of the penstock pipe release. The results show the impact of the dam on communities arising from a change in the water quality, but also habitats including the presence of very long and deep pools in the bypassed section, which alternate with rapids, which change the river dynamics of watercourse.
Fichier non déposé

Dates et versions

hal-01170126 , version 1 (01-07-2015)

Identifiants

  • HAL Id : hal-01170126 , version 1

Citer

Aude Beauger, Jean-Luc Peiry, Alexandre Garreau, Olivier Voldoire. Benthic diatom and macroinvertebrate communities from the impacted bypass channel of Poutès, upper Allier River (France): preliminary results before the dam removal.. I.S. Rivers 2015, Jun 2015, Lyon, France. ⟨hal-01170126⟩
87 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More