Como identificar Corvina Negra

Para identificar Corvina Negra (Sciaena umbra), observe estas características principais.

Características físicas

Formato do corpo

compressed

Coloração

Generally dark brown to blackish on the dorsal side, fading to a lighter, silvery-grey on the flanks and belly. Fins are typically dark. Juveniles may exhibit a more silvery hue with faint vertical bands.

Tipo de escama

ctenoid

Posição da boca

inferior

Características distintivas

High, arched back, Large, prominent scales, A single, long dorsal fin deeply notched, A distinctive, large, and robust head, A prominent lateral line that extends to the caudal fin, Absence of barbels on the chin (distinguishing feature from some other sciaenids)

Nadadeira dorsal

Two dorsal fins, deeply notched, appearing almost as two separate fins. The first dorsal fin has 10-11 strong spines, and the second dorsal fin has 1 spine and 23-25 soft rays.

Nadadeira caudal

Truncate to slightly emarginate caudal fin.

Nadadeira peitoral

Relatively long and pointed pectoral fins.

Nadadeiras características

Pelvic fins are thoracic, located directly below the pectoral fins.

Dicas de identificação

1. 1

   Body Shape and Coloration

   Look for a robust, compressed body with a high back. The overall dark brown to blackish coloration dorsally, fading to silvery-grey ventrally, is characteristic.

2. 2

   Dorsal Fin

   Observe the deeply notched dorsal fin, appearing almost as two separate fins, with strong spines in the anterior part.

3. 3

   Lateral Line

   Note the prominent lateral line that extends clearly to the caudal fin.

4. 4

   Mouth Position

   The mouth is inferior, meaning it is located on the underside of the head, adapted for bottom feeding.

5. 5

   Absence of Barbels

   Crucially, Sciaena umbra lacks barbels on its chin, which helps distinguish it from some other sciaenid species like the Red Drum (Sciaenops ocellatus) or certain croakers.

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