Ecology of the benthic macroinvertebrates in the lower Ebro River: community characterization, population dynamics and bioaccumulation of pollutants in response to environmental factors / Ecologia dels macroinvertebrats bentònics al tram baix del riu Ebre: caracterització de la comunitat, dinàmica de poblacions i bioacumulació de contaminants en resposta a factors ambientals
[eng] The effects of the main anthropogenic impacts in the fluvial ecosystem of the lower Ebro River are evaluated along the five chapters of the present thesis, using the benthic macroinvertebrate community as a bioindicator. Different approaches are integrated in function of the type of stressor,...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2010 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/35320 |
| Acceso en línea: | https://hdl.handle.net/2445/35320 http://hdl.handle.net/10803/37309 |
| Access Level: | acceso abierto |
| Palabra clave: | Ecologia d'aigua dolça Avaluació d'impacte ambiental Contaminació de l'aigua Indicadors biològics Poblacions animals Invertebrats d'aigua dolça Ebre (Espanya : Curs d'aigua) Freshwater ecology Environmental impact analysis Water-Pollution Indicators (Biology) Animal populations Freshwater invertebrates Ebro River (Spain) |
| Sumario: | [eng] The effects of the main anthropogenic impacts in the fluvial ecosystem of the lower Ebro River are evaluated along the five chapters of the present thesis, using the benthic macroinvertebrate community as a bioindicator. Different approaches are integrated in function of the type of stressor, considering mainly heavy metal and organochlorine pollution and hydrological alterations. These approaches focus on the taxonomy and biological traits of the community, and on the bioaccumulation of pollutants, population and life history studies on keystone species such as Ephoron virgo (Ephemeroptera: Polymitarcyidae). The results evidence a strong ecological response, and demonstrate that these effects act at different levels of organization, including communities, populations and individuals. |
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