Attributes / relations provided by
♦ ¹Specziár, A., Tölg, L. and Bíró, P. (1997), Feeding strategy and growth of cyprinids in the littoral zone of Lake Balaton. Journal of Fish Biology, 51: 1109–1124
♦ ²del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.