Cumulative number of alien species established in freshwater environment in 11 countries

Figure Created 12 Nov 2009 Published 02 Sep 2010 Last modified 20 Feb 2017
How to read the graph: in the 1990s, the total number of freshwater alien species reached around 140 species


European data


Additional information

  • The cumulative number of alien species introduced in European freshwater ecosystems has been constantly increasing since the 1900s.
  • However, this increase is slowing down for freshwater species (EEA, 2009).
European Environment Agency (EEA)
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