British Wildlife Wiki
Rudd Rod-caught and returned approx 700 g

Typical rudd (East Sussex)

Lemon-finned Rudd or Azurine

Lemon-finned Rudd

The Rudd (Scardinius erythrophthalmus) is a colourful member of the carp family. Adult rudd are of brassy bodily hue, dark green on the back, with all fins tinged with crimson, especially the lower fins. Younger fish tend to have more silvery bodies. The rudd is a shoal fish which resembles a Roach in shape and inhabits ponds, lakes, canals and slow-flowing rivers. It normally grows to about 25cm long and weighs up to 500 grams, although bigger specimens can be found - usually in larger lakes. According to Maitland (1992) rudd can produce between, 100,000 to 200,000 eggs per kilogram of body weight.

Rudd can be recognised by the golden-yellow iris, an upturned mouth, a keel between the anus and the pelvic fins, and the dorsal fin is set further back than in the case of the roach.

Rudd feed mainly on larvae, small crustaceans, water snails and other invertebrates, and will accept most baits offered by anglers, including bread. They feed at all depths, including on the bottom, but are most often caught in the upper layers of still waters.

There are two other varieties - The Lemon-finned Rudd, (lower picture) which as its name implies, has pale lemon fins and iris but otherwise has all the physical features of the red-finned form, and the Golden Rudd, a reddish gold sport in the wild, but also obtained by selective breeding and stocked in some fisheries.

Rudd can hybridise with roach (common) and with bream (less common) and also (rarely in the wild) with other cyprinids .