Scardinius erythrophthalmus ( 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 : 197-198

Scardinius erythrophthalmus ( Linnaeus, 1758) , Rudd.

Cyprinus erythrophthalmus Linnaeus 1758: 324 .

Scardinius erythrophthalmus — Kottelat and Freyhof 2007: 252.

Material examined. Table 1

Presence of a red eye and ventral, anal, and caudal fins, superior mouth position and 9–12 gill rakers on first gill arch. It has been reported in all types of rivers and water bodies except for ponds; however, this species is

more abundant and frequent in the latter. The rudd fish is most frequent in the streaming oxbows (75% of the examined water bodies), as well as landlocked oxbows and storage reservoirs (38.7 and 66.7%, respectively), and least frequent in the karst and suffusion lakes. This species was observed in all types of rivers, but it is not abundant and has a low share in catches (0.1–2.7%). Its occurrence rate gradually increases according to the river enlargement, from 2.5% at 25 km from the source, to 15.4–25% at 101–500 km from the river source.