Como identificar Piracanjuba

Para identificar Piracanjuba (Brycon orbignyanus), observe estas características principais.

Características físicas

Formato do corpo

torpedo

Coloração

Dorsal region is typically dark olive-green to brownish, fading to silvery-white on the flanks and belly. Fins are often yellowish to reddish-orange, especially the caudal and anal fins. A distinct dark spot or blotch may be present on the operculum (gill cover) and at the base of the caudal fin in some individuals or life stages.

Tipo de escama

cycloid

Posição da boca

terminal

Características distintivas

Elongated, fusiform body, Large, terminal mouth with strong, conical teeth adapted for an omnivorous diet, Adipose fin present, Relatively large scales, Prominent lateral line

Nadadeira dorsal

Single, relatively short dorsal fin located mid-body, typically with 11-12 rays.

Nadadeira caudal

Deeply forked caudal fin, powerful and adapted for fast swimming.

Nadadeira peitoral

Paired pectoral fins are well-developed, positioned ventrally.

Nadadeiras características

Anal fin is relatively long, with 25-29 rays. Pelvic fins are abdominal. Adipose fin is small and fleshy, located between the dorsal and caudal fins.

Dicas de identificação

1. 1

   Body Shape and Size

   Look for a large, torpedo-shaped fish, typically reaching up to 80 cm (31.5 inches) in length and weighing over 10 kg (22 lbs), though larger specimens up to 1 meter (39 inches) and 20 kg (44 lbs) have been recorded. The body is laterally compressed but robust.

2. 2

   Coloration

   Observe the dark olive-green to brownish back, silvery sides, and whitish belly. The yellowish to reddish fins, especially the caudal and anal fins, are a key indicator.

3. 3

   Mouth and Teeth

   Note the large, terminal mouth with strong, conical teeth arranged in two rows on the premaxilla and dentary, adapted for its omnivorous diet.

4. 4

   Fin Count

   Count the rays in the anal fin (25-29) and dorsal fin (11-12) for a more precise identification, though this requires close examination.

5. 5

   Lateral Line

   The lateral line is complete and prominent, with 58-65 scales.

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