'invasive alien species of Union concern' means an invasive alien species whose adverse impact has been deemed such as to require concerted action at Union level pursuant to Article 4(3);
ciallaíonn “speiceas coimhthíoch ionrach is ábhar imní don Aontas” speiceas coimhthíoch ionrach a meastar go n-éilíonn a dhrochthionchar gníomhaíocht chomhbheartaithe ar leibhéal an Aontais de bhun Airteagal 4(3);