écosystčme d'eau douce
1пресноводная экосистема — — [http://www.eionet.europa.eu/gemet/alphabetic?langcode=en] EN freshwater ecosystem The living organisms and nonliving materials of an inland aquatic environment. (Source: MGH) [http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]… …
