ˌrēəˈfilik adjective
or rheo·phile ˈrēəˌfīl ; also rheo·phil ˈ ̷ ̷ ̷ ̷ˌfil ; or rhe·oph·i·lous (ˈ)rē|äfələs
Etymology: International Scientific Vocabulary rheo- + -philic, -phile, -phil, -philous
: preferring or living in flowing water
rheophilic fauna