Como identificar Lambari

Para identificar Lambari (Astyanax spp.), observe estas características principais.

Características físicas

Formato do corpo

compressed

Coloração

Predominantly silvery, often with iridescent reflections. Many species exhibit a distinct dark humeral spot (behind the operculum) and a dark spot on the caudal peduncle. Fins are typically hyaline (clear) to yellowish, sometimes with reddish tints, especially in males during breeding season.

Tipo de escama

cycloid

Posição da boca

terminal

Características distintivas

Adipose fin present, Lateral line complete, Small, conical teeth in two rows on the premaxilla, and a single row on the dentary, Often a dark humeral spot (shoulder spot), Often a dark caudal peduncle spot

Nadadeira dorsal

Single dorsal fin, typically with 10-11 rays, located mid-body.

Nadadeira caudal

Forked caudal fin, symmetrical lobes.

Nadadeira peitoral

Paired pectoral fins, typically with 11-13 rays.

Nadadeiras características

Anal fin is relatively long, with 20-30 rays depending on the species. Pelvic fins are small, abdominal in position.

Dicas de identificação

1. 1

   Humeral Spot

   Look for a distinct dark spot located just behind the gill cover (operculum). Its shape and intensity can vary between species.

2. 2

   Caudal Peduncle Spot

   Observe the base of the caudal fin; many Astyanax species have a dark spot or stripe extending onto the caudal fin lobes.

3. 3

   Body Shape and Size

   Generally compressed, fusiform bodies. Adult size typically ranges from 5 cm to 15 cm (2 to 6 inches), though some species can be larger.

4. 4

   Fin Ray Counts

   For precise identification, counting fin rays (especially in the anal fin) and lateral line scales is often necessary, requiring specialized ichthyological keys.

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