How to Identify Roach

To identify Roach (Rutilus rutilus), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Silvery flanks, often with a greenish or bluish sheen on the back, fading to white on the belly. The fins are typically reddish, especially the pectoral, pelvic, and anal fins, with the dorsal and caudal fins being greyish-red. The iris of the eye is distinctly red or orange.

Scale type

cycloid

Mouth position

terminal

Distinctive features

Red/orange iris of the eye, Silvery body with reddish fins, Relatively deep body compared to some other cyprinids, Small, terminal mouth

Dorsal fin

Single, short-based dorsal fin, typically with 10-12 rays, positioned directly above or slightly behind the pelvic fins.

Tail fin

Forked caudal fin with two lobes.

Pectoral fin

Paired pectoral fins, reddish in color.

Distinctive fins

All fins, particularly the paired fins and anal fin, often exhibit a distinct reddish hue, which intensifies during spawning.

Identification Tips

1. 1

   Eye Color

   The most distinctive feature is the bright red or orange iris of the eye, which is usually very prominent.

2. 2

   Fin Coloration

   The reddish tint of the pectoral, pelvic, and anal fins is a key identifier, especially when compared to similar species.

3. 3

   Body Shape

   A relatively deep, compressed body with silvery flanks and a darker back.

4. 4

   Mouth Position

   A small, terminal mouth, indicating its omnivorous feeding habits.

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