Common Roach

Physical Characteristics

A small to medium-sized fish with a deep, laterally compressed body, large silver scales with a blue or green tint on the back, and distinctive bright orange-red pelvic and anal fins. The iris of the eye is often red or orange.

Habitat & Distribution

Native to fresh and brackish waters across Europe and Western Asia. It thrives in slow-flowing rivers, lakes, ponds, and canals, often preferring areas with abundant vegetation.

Size & Weight

Typically reaches 15 to 30 cm in length and weighs between 100g to 500g, though rare specimens can reach up to 50 cm and weigh over 1.8 kg.

Similar Looking Species

Common Rudd (Scardinius erythrophthalmus) - distinguished by the position of its dorsal fin and its upturned mouth. Common Bream (Abramis brama) - has a much deeper body and darker fins.

Ecological Role

An omnivorous feeder consuming algae, aquatic plants, insects, and small mollusks. It serves as a vital prey species for larger predators like pike and herons. Listed as Least Concern by the IUCN.

Identified on: 1/2/2026

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