Kalmar “catadromous” sifa ce da ke nufin wani nau’in kifin da ke rayuwa a cikin ruwa mai dadi amma yakan yi hijira zuwa teku don kiwo da kwai. Musamman, yana bayyana tsarin kifin da ke motsawa daga ruwa mai daɗi zuwa ruwan gishiri don haifuwa. Wannan kishiyar kifin “anadromous” ne, waɗanda ke rayuwa a cikin teku amma suna ƙaura zuwa ruwa mai daɗi don hayayyafa. Kalmar “catadromous” ta fito ne daga kalmomin Helenanci “kata,” ma’ana “ƙasa,” da “dromos,” ma’ana “gudu.”