Study of the impact of the discharges of the Vila-Viçosa small hydroelectric development (Portugal) on the water quality and on the fish communities of the Ardena river
A study of the Vila-Viçosa small hydroelectric development, situated on the Ardena river (hydrographical basin of the river Douro, Portugal) was carried out for one year, with the purpose of evaluating the existence of differences in the fish communities found downstream and upstream of the developm...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2004 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:26099 |
| Acceso en línea: | https://ddd.uab.cat/record/26099 |
| Access Level: | acceso abierto |
| Palabra clave: | Impacte ambiental Minicentrals hidroelèctriques Peixos Impacto ambiental Minicentrales hidroeléctricas Peces Environmental impact Small hydroelectric developments Fish |
| Sumario: | A study of the Vila-Viçosa small hydroelectric development, situated on the Ardena river (hydrographical basin of the river Douro, Portugal) was carried out for one year, with the purpose of evaluating the existence of differences in the fish communities found downstream and upstream of the development. A characterization of the system was made, bearing in mind morphological, hydrological and physical and chemical characteristics and studying the structure and dynamics of the fish communities. With the collected data on physical and chemical parameters a study of its space-time variation was made. Moreover, with the data relative to the fish communities a study of the space-time variation of some parameters was carried out. After the analysis of the data, it is possible to conclude that the Ardena river is a lotic system with water of good quality and that the functioning of the hydroelectric plant does not produce variations of the values of the parameters measured. The results obtained for the space-time variation of the fish community reveal some alterations in its distribution. |
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