Como identificar Piau

Para identificar Piau (Leporinus obtusidens), observe estas características principais.

Características físicas

Formato do corpo

elongated

Coloração

The body is generally silvery to yellowish-brown, often with three distinct, dark, vertically elongated blotches or bars along the flanks. The intensity and number of these markings can vary. Fins are typically hyaline (clear) to yellowish, sometimes with dusky margins. Juveniles may exhibit more pronounced patterns.

Tipo de escama

cycloid

Posição da boca

subterminal

Características distintivas

Subterminal mouth with thick, fleshy lips., Three prominent dark blotches or bars on the flanks (though variations exist)., Robust, elongated body., Large, cycloid scales., Characteristic dentition adapted for scraping and biting.

Nadadeira dorsal

Single dorsal fin, typically with 11-13 rays, positioned mid-body.

Nadadeira caudal

Forked caudal fin, symmetrical lobes.

Nadadeira peitoral

Paired pectoral fins, relatively small.

Nadadeiras características

Pelvic fins are abdominal. Anal fin is short, positioned posteriorly.

Dicas de identificação

1. 1

   Mouth and Teeth

   Observe the subterminal mouth with thick lips and the characteristic chisel-like incisor teeth, which are a hallmark of the genus Leporinus. L. obtusidens specifically has relatively blunt (obtuse) teeth compared to some congeners.

2. 2

   Body Markings

   Look for the presence and pattern of dark blotches or bars on the flanks. While typically three, variations exist, but their general shape and position are key. These markings are usually more defined in younger individuals.

3. 3

   Body Shape

   Note the elongated, somewhat cylindrical body shape, which is typical for Leporinus species.

4. 4

   Fin Ray Counts

   For precise identification, fin ray counts (e.g., dorsal fin rays, anal fin rays) can be used, though this often requires closer examination.

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