Como identificar Perca Bocona

Para identificar Perca Bocona (Percichthys trucha), observe estas características principais.

Características físicas

Formato do corpo

torpedo

Coloração

Variable, typically olive-green to brownish-grey on the dorsal side, fading to silvery-white on the ventral side. Often exhibits irregular dark spots or blotches along the flanks. Fins can be dusky or yellowish.

Tipo de escama

ctenoid

Posição da boca

terminal

Características distintivas

Large, protractile mouth extending beyond the posterior margin of the eye, Robust, somewhat compressed body, Two distinct dorsal fins, the first spiny and the second soft-rayed, Large scales, Strong opercular spines

Nadadeira dorsal

Two dorsal fins: the first with 8-10 strong spines, the second with 1 spine and 9-12 soft rays. The two fins are typically separated or barely connected.

Nadadeira caudal

Caudal fin is emarginate to slightly forked.

Nadadeira peitoral

Pectoral fins are relatively large and rounded.

Nadadeiras características

Pelvic fins are thoracic, located beneath the pectoral fins, with 1 spine and 5 soft rays. Anal fin has 3 spines and 8-10 soft rays.

Dicas de identificação

1. 1

   Mouth Size

   The most distinguishing feature is its large mouth, which extends well past the eye, giving it the 'bocona' (big-mouthed) common name.

2. 2

   Dorsal Fins

   Presence of two distinct dorsal fins, the first spiny and the second soft-rayed, is characteristic of the Percichthyidae family.

3. 3

   Body Shape and Coloration

   Robust, somewhat compressed body with variable coloration (olive-green to brownish-grey with dark spots/blotches) helps differentiate it from introduced salmonids.

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