- Abramis bjoerkna (Linnaeus, 1758)
- Blicca bioerkna Linnaeus, 1758
- Cyprinus bjoerkna Linnaeus, 1758
Silver Bream, White Bream
No status defined
Value of species
North, Baltic, White, Black (south to Rioni drainage) and Caspian Sea basins, Atlantic basin southward to Adour drainage (France; possibly introduced southward of Loire) and Mediterranean basin in France (Hérault and Rhône drainages). In Aral, Marmara and Anatolian Black Sea basins west of Ankara. Naturally absent from Iberian Peninsula, Italy, Adriatic basin, Crimea, Great Britain (except southeast), Scandinavia north of Sundsvall (Sweden) and 65°N (Finland). Locally introduced in Spain, northeastern Italy. In France apparently introduced in small coastal drainages of Var.
Habitat: A wide variety of shallow, warm lowland lakes and slow-flowing lower reaches of large rivers and canals. Often very abundant on bottom of large sandy rivers. Spawns along shores on submerged vegetation, roots or even on shallow gravel bottom.
Biology: Predominantly nocturnal. Gregarious. Lives more than 10 years. Males reproduce for the first time at two years, females at three. Most individuals spawn 2-3 times per season, at intervals of about 10 days and spawn in more than one year. Spawns in May-July at temperatures above 15°C, in early morning. Eggs are sticky and larvae inhabit still water bodies. Feeds on benthic invertebrates. Often hybridizes with Vimba vimba. Most reported hybrids with Abramis brama in fact are A. brama with pharyngeal teeth 2,5-5,2 (vs. usually 5-5).
- Соколов Н.Ю. Каталог колекції круглоротих і риб Державного природознавчого музею НАН України // Наукові записки Державного природознавчого музею. – Львів, 2004. – Т.19. – С. 15-28.