common rudd

The common rudd, scientifically named *Scardinius erythrophthalmus*, is a species of fish within the family Cyprinidae. It belongs to the order Cypriniformes, class Teleostei, and phylum Chordata. The species was described by Linnaeus in 1758 and is distinct from *Rutilus rutilus*. Its parent taxon is *Scardinius*, and it is also referred to by the short name *S. erythrophthalmus*.

This organism inhabits both freshwater and brackish environments. The common rudd has been identified as invasive to New Zealand. According to the IUCN Red List, its conservation status was assessed as Least Concern in 2024. The species is recognized by various common names, including Rudd, perlín ostrobřichý, rietvoorn, ruisvoorn, and rotengle.