The Danube whitefin gudgeon (Romanogobio vladykovi)Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol, Switzerland. 646 p. is a species of freshwater ray-finned fish belonging to the family Gobionidae, the gudgeons. It is distributed in the drainage of the Danube river in Europe. The species has been known to reach a length of ; the oldest reported age for the species is 4 years. Its diet includes insect larvae.
Etymology The scientific name of the species was chosen in honor of (1898–1986), a Ukrainian ichthyologist.
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