Como identificar Lambari

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

Características físicas

Formato do corpo

compressed

Coloração

Silvery body, often with a yellowish or greenish tint dorsally. A prominent, vertically elongated dark humeral spot is typically present behind the operculum. A less distinct, sometimes diffuse, dark spot may be present on the caudal peduncle. Fins are hyaline (clear) to yellowish, sometimes with reddish hues, especially in breeding males.

Tipo de escama

cycloid

Posição da boca

terminal

Características distintivas

Laterally compressed body, Adipose fin present, Complete lateral line, Two rows of premaxillary teeth, Typically 36-40 lateral line scales, Prominent dark humeral spot

Nadadeira dorsal

Typically 10-11 rays (ii-iii unbranched, 8-9 branched)

Nadadeira caudal

Forked, with symmetrical lobes

Nadadeira peitoral

Typically 11-13 rays

Nadadeiras características

Adipose fin present between the dorsal and caudal fins, characteristic of Characidae.

Dicas de identificação

1. 1

   Humeral Spot

   Look for a distinct, vertically elongated dark spot located just behind the gill cover (operculum). This is a key diagnostic feature for Astyanax lacustris, though its intensity can vary.

2. 2

   Caudal Peduncle Spot

   Observe the base of the caudal fin for a dark spot, which can range from well-defined to diffuse. This spot, combined with the humeral spot, helps differentiate it from other Astyanax species.

3. 3

   Body Shape and Coloration

   Note the silvery, laterally compressed body. The overall body shape is fusiform, typical of active swimmers. Fin coloration can be hyaline to yellowish, sometimes with reddish tints, especially during breeding.

4. 4

   Lateral Line

   The lateral line is complete, extending from the operculum to the caudal fin base. Counting the scales along the lateral line (typically 36-40) can aid in identification.

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