Come identificare Silver Arowana

Per identificare Silver Arowana (Osteoglossum bicirrhosum), osserva queste caratteristiche chiave.

Caratteristiche fisiche

Forma del corpo

elongated

Colorazione

Predominantly silvery, sometimes with a greenish or bluish sheen, especially on the dorsal surface. Juveniles may have a yellowish or orange tint on their fins. The large, prominent scales reflect light, giving them a metallic appearance.

Tipo di squame

cycloid

Posizione della bocca

superior

Caratteristiche distintive

Large, prominent scales (cycloid type) that are often iridescent., A large, oblique mouth that opens upwards, equipped with numerous small, conical teeth., Two prominent barbels at the tip of the lower jaw., Long dorsal and anal fins that extend almost to the caudal fin, giving a 'dragon-like' appearance., Laterally compressed body.

Pinna dorsale

Long, low, and originates far back on the body, almost confluent with the caudal fin.

Pinna caudale

Rounded to slightly pointed, often appearing fan-like.

Pinna pettorale

Relatively small and positioned low on the body.

Pinne distintive

Pelvic fins are small and located abdominally. The anal fin is long and mirrors the dorsal fin in shape and position.

Consigli per l'identificazione

1. 1

   Body Shape and Size

   Elongated, laterally compressed body, reaching up to 90-120 cm (35-47 inches) in length and weighing up to 6 kg (13 lbs) in the wild. Captive specimens are often smaller.

2. 2

   Coloration

   Uniformly silvery, sometimes with a faint greenish or bluish tint. Juveniles may have a more pronounced yellowish or orange hue on their fins.

3. 3

   Mouth and Barbels

   Large, upward-pointing mouth with two prominent barbels on the lower jaw. This is a key distinguishing feature from other large predatory fish.

4. 4

   Scales

   Very large, distinct, and iridescent cycloid scales that give the fish a metallic appearance.

5. 5

   Fin Placement

   Dorsal and anal fins are long and set far back on the body, almost reaching the caudal fin.

Esplora Silver Arowana