sentences:  This is due to a number of threats including the poor likelihood of recovering from declining populations.Devil rays feed on planktonic crustaceans and small schooling fish, which are trapped using the modified gill covers (branchial plates) responsible for its "devil-like" silhouette.It mostly eats euphausiid shrimp ("Meganyctiphanes norvegica") and small mesopelagic and clupeid fishes.