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

Autors/ores

  • Sergi Sabater 1.Catalan Institute for Water Research (ICRA), Girona, Catalonia. 2. GRECO, Institute of Aquatic Ecology, University of Girona, Girona, Catalonia.
  • Isabel Muñoz Department of Ecology, University of Barcelona, Barcelona, Catalonia.
  • Emili García-Berthou GRECO, Institute of Aquatic Ecology, University of Girona, Girona, Catalonia.
  • Damià Barceló 1.Catalan Institute for Water Research (ICRA), Girona, Catalonia. 2GRECO, Institute of Aquatic Ecology, University of Girona, Girona, Catalonia. 2. Water and Soil Quality Research Group, Department of Environmental Chemistry, IDAEA-CSIC, Barcelona.

Paraules clau:

multiple stressors · nutrient excess · organic pollution · water scarcity · Mediterranean basin · global change

Resum

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 compromised. 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. [Contrib Sci 10:161-169 (2014)]

Descàrregues

Número

Vol. 10 Núm. 2 (2014)

Secció

Research reviews

Llicència

Creative Commons License

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