''Rutilus heckelii'' is a species of roach, a genus in the family

Cyprinidae Cyprinidae is a family of freshwater fish commonly called the carp or minnow family. It includes the carps, the true minnows, and relatives like the barbs and barbels. Cyprinidae is the largest and most diverse fish family and the largest v ...

. This species occurs in freshened areas of

Black Black is a color which results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. It is often used symbolically or figuratively to represent darkness. Black and white ha ...

and

Azov Sea The Sea of Azov ( Crimean Tatar: ''Azaq deñizi''; russian: Азовское море, Azovskoye more; uk, Азовське море, Azovs'ke more) is a sea in Eastern Europe connected to the Black Sea by the narrow (about ) Strait of Kerch, ...

s, entering the Don,

Kuban Kuban (Russian and Ukrainian: Кубань; ady, Пшызэ) is a historical and geographical region of Southern Russia surrounding the Kuban River, on the Black Sea between the Don Steppe, the Volga Delta and the Caucasus, and separated fr ...

Dniepr } The Dnieper () or Dnipro (); , ; . is one of the major transboundary rivers of Europe, rising in the Valdai Hills near Smolensk, Russia, before flowing through Belarus and Ukraine to the Black Sea. It is the longest river of Ukraine and ...

Dniestr The Dniester, ; rus, Дне́стр, links=1, Dnéstr, ˈdⁿʲestr; ro, Nistru; grc, Τύρᾱς, Tyrās, ; la, Tyrās, la, Danaster, label=none, ) ( ,) is a transboundary river in Eastern Europe. It runs first through Ukraine and th ...

and rarely

Danube The Danube ( ; ) is a river that was once a long-standing frontier of the Roman Empire and today connects 10 European countries, running through their territories or being a border. Originating in Germany, the Danube flows southeast for , ...

drainages. Newer research however suggests that ''R. heckelii'' is part of a more widely distributed species of roach, whose range extends to Siberia. The proper name of that species is ''Rutilus lacustris''.Levin, B.A., Simonov, E.P., Ermakov, O.A., Levina, M.A., Interesova, E.A., Kovalchuk, O.M., Malinina, Y.A., Mamilov, N.S., Mustafayev, N.J., Pilin, D.V., Pozdeev, I.V., Prostakov, N.I., Roubenyan, H.R., Titov, S.V. & Vekhov, D.A. (2017)
Phylogeny and phylogeography of the roaches, genus ''Rutilus'' (Cyprinidae), at the Eastern part of its range as inferred from mtDNA analysis.
''Hydrobiologia'', 788: 33–46. In

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, other countries of the former

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and parts of Eastern Europe, this and related species of roach are commonly air-dried and salted to create a popular beer snack, known as 'taran' or 'taranka', after the Russian word for this fish species, 'тарань'.

References

Cyprinid fish of Asia Fish of Western Asia Freshwater fish of Europe Fish described in 1814 Rutilus {{Leuciscinae-stub