Silver Bream

Silver Bream, Blicca bjoerkna, also known as White Bream, is a freshwater fish and the sole species in its genus, placed within the family Leuciscidae (formerly grouped with the carps and true minnows). It is native to lakes, rivers, and slow-moving waters across much of Europe and Western Asia, though it is naturally absent from northern Scandinavia, most of the Iberian and Italian peninsulas, and much of the British Isles outside southern England. Not considered at risk, it remains widespread and often abundant where present. Silver Bream is frequently confused with the young of Common Bream, but its notably large, protruding eyes and larger scales make it distinguishable with close observation, a distinction useful for accurate field identification.

Key features:

• Deep, laterally compressed body, silvery overall with a bluish-grey back
• Very large, round, protruding eyes with a yellowish cornea and black iris
• Grey fins, often tinged reddish at the base
• Small, slightly downward-pointing mouth
• Forked tail fin

Adults typically measure 15-25 cm. Silver Bream closely resembles juvenile Common Bream (Abramis brama) but can be distinguished by its proportionally larger eye relative to head size, larger scales, and greyer (rather than orange-tinged) anal fin. Among European Leuciscidae, only the Bleak shares a comparably large, protruding eye, but Bleak has a far more slender, elongate body.

Silver Bream inhabits freshwater lakes, slow-flowing rivers, canals, and ponds across much of Europe and Western Asia, typically favoring warmer, well-vegetated, and often slightly turbid water. It tolerates a range of conditions, including relatively low oxygen levels, and is often found alongside Common Bream and other cyprinid-type fish in still or slow-moving lowland waters. The species prefers water with abundant submerged vegetation and soft sediment, which supports its invertebrate prey base. It generally avoids fast-flowing, cold, or highly oxygenated upland streams, favoring instead the calmer lowland and floodplain waters typical of much of its European range.

Silver Bream is a highly social, schooling species, typically found in loose to dense shoals over soft substrate in lakes and slow rivers. It feeds primarily on benthic invertebrates such as midge larvae and small crustaceans, along with some plant material, foraging along the bottom in vegetated or silty areas. Spawning occurs in late spring to early summer, when adults move into shallow, vegetated margins to release adhesive eggs onto submerged plants. Schools often mix with Common Bream and other cyprinid species, and Silver Bream can hybridize with Common Bream where the two species co-occur, occasionally complicating field identification of intermediate individuals.