black sea, jellyfish beroe ovata - devouring mnemiopsis leidy.

invertebrates invertebrate environment hydrobionts mnemiopsis glistening underwater ctenophora ctenophore ecological introduced jellyfish devouring digesting invasions organism painting invading invasion invasive predator undersea wildlife combine seafood invader invasia species caught plates animal exotic marine medusa nature odessa column black beroe ovata leidy jelly light coral organ deniz fauna water comb reef blue fish life nuda swim wild sea art bay