How to Identify Orange River Labeo

To identify Orange River Labeo (Labeo capensis), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Generally dark olive to brownish-grey dorsally, fading to a lighter, often yellowish or silvery-white ventral surface. Fins are typically dusky, sometimes with a reddish tinge, especially during breeding season. Juveniles may exhibit a more mottled pattern.

Scale type

cycloid

Mouth position

subterminal

Distinctive features

Subterminal mouth with thick, fleshy, papillose lips, often with a horny cutting edge on the lower jaw., Two pairs of short barbels (rostral and maxillary)., Large, prominent scales., Robust, cylindrical body, slightly compressed laterally., A prominent, often slightly humped, dorsal profile., Can reach up to 50-60 cm (20-24 inches) in total length and weigh over 3 kg (6.6 lbs), with exceptional specimens exceeding these measurements.

Dorsal fin

Single, relatively short-based dorsal fin with 3-4 unbranched and 9-11 branched rays. The first few branched rays are typically the longest.

Tail fin

Deeply forked caudal fin with pointed lobes.

Pectoral fin

Pectoral fins are relatively large and rounded.

Distinctive fins

Pelvic fins are abdominal, located beneath the dorsal fin origin. Anal fin is short-based with 3 unbranched and 5 branched rays.

Identification Tips

1. 1

   Mouth structure

   Look for the distinctive subterminal mouth with thick, fleshy, papillose lips and two pairs of short barbels. The lower lip often has a horny cutting edge.

2. 2

   Body shape and size

   Robust, cylindrical body, often reaching considerable size (up to 60 cm). The dorsal profile can be slightly humped.

3. 3

   Coloration

   Generally dark olive to brownish-grey dorsally, lighter ventrally. Fins are dusky. This can vary with water clarity and substrate.

4. 4

   Geographic location

   Its presence within the Orange-Vaal River system is a key identifier, as it is endemic to this basin.

Explore Orange River Labeo