Rutilus rutilus ( Linnaeus, 1758 )

Artaev, Oleg & Ruchin, Alexander B., 2017, The ichthyofauna of the Moksha River, a tributary of the Volga river basin, Russia, Check List 13 (4), pp. 185-202 : 197

Rutilus rutilus ( Linnaeus, 1758) , Roach

Cyprinus rutilus Linnaeus 1758: 324 .

Rutilus rutilus — Kottelat and Freyhof 2007: 246.

Material examined. Table 1; Fig. 7B.

Presence of red eye and ventral, anal and caudal fins, and by the terminal position of the mouth. The roach is the most abundant and frequent species in the Moksha River drainage. Its occurrence rate in rivers varies from 48.7% (in the regions to 25 km from the source) to 100% (200–300 km from the source). This species was recorded in all examined streaming oxbows and storage reservoirs, slightly less than half of the landlocked oxbows, karst, and suffusion lakes, and is least frequent in ponds (25%). The variation in its share in the catches in rivers of various sizes is insignificant (15.3–27.4%). The highest share in catches (51%) was observed in streaming oxbows, while the share in other types of water bodies varies in the range of 26.2–38.5%.