Multiple stressors in Mediterranean freshwater ecosystems: The Llobregat River as a paradigm

Hydrological modifications drive other ecological stressors of freshwater ecosystems and interact with them. The present paper examines the relevance of hydrological disturbances resulting from global change by presenting the case of the Llobregat River, a highly disturbed system in NE Spain. The Ll...

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Detalles Bibliográficos
Autores: Sabater, Sergi, Muñoz Gràcia, Isabel, García-Berthou, Emili, Barceló i Cullerés, Damià
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/97708
Acceso en línea:https://hdl.handle.net/2445/97708
Access Level:acceso abierto
Palabra clave:Contaminants orgànics de l'aigua
Nutrients (Medi ambient)
Canvi climàtic
Llobregat (Catalunya : Curs d'aigua)
Organic water pollutants
Nutrients (Ecology)
Climatic change
Llobregat River (Catalonia)
Descripción
Sumario:Hydrological modifications drive other ecological stressors of freshwater ecosystems and interact with them. The present paper examines the relevance of hydrological disturbances resulting from global change by presenting the case of the Llobregat River, a highly disturbed system in NE Spain. The Llobregat is a clear example of a Mediterranean river suffering from multiple stressors. Both the distribution and abundance of organisms and ecosystem functioning as a whole are greatly determined by water scarcity, water salinity, nutrient concentration, and organic (and inorganic) pollution. Structural drought exacerbates these problems, as the capacity to dilute pollutants is ompromised. Controlling water abstraction and limiting nutrient and pollutant inputs downstream are essential to the structural and functional recovery of biological communities and to maximizing the ecosystem services provided by the Llobregat River.