Come identificare Corvina

Per identificare Corvina (Sciaena deliciosa), osserva queste caratteristiche chiave.

Caratteristiche fisiche

Forma del corpo

elongated

Colorazione

Generally silvery-grey to brownish-silver dorsally, fading to a lighter, often whitish, ventral surface. Fins are typically dusky or yellowish. Juveniles may exhibit faint vertical bars that fade with age. The operculum often has a dark spot.

Tipo di squame

ctenoid

Posizione della bocca

subterminal

Caratteristiche distintive

Robust, slightly compressed body., Large head with a relatively small, subterminal mouth., A single, short barbel on the chin (though sometimes absent or rudimentary in adults)., Strongly ctenoid scales covering the body and head., Lateral line distinctly arched anteriorly, becoming straight posteriorly., Preopercle margin serrated.

Pinna dorsale

Two dorsal fins, deeply notched or separated. The first dorsal fin has 10-11 strong spines; the second dorsal fin has 1 spine and 23-26 soft rays. The soft-rayed portion is long.

Pinna caudale

Truncate to slightly emarginate caudal fin.

Pinna pettorale

Moderately long pectoral fins, typically reaching beyond the pelvic fin origin.

Pinne distintive

Anal fin with 2 spines and 7-8 soft rays. Pelvic fins thoracic, with 1 spine and 5 soft rays.

Consigli per l'identificazione

1. 1

   Body Shape and Coloration

   Look for a robust, silvery-grey body with a lighter belly. The overall impression is of a sturdy, somewhat elongated fish.

2. 2

   Head and Mouth

   Note the large head and the subterminal mouth. The presence of a small, often inconspicuous, chin barbel is a key characteristic, though it can be difficult to see or absent in some individuals.

3. 3

   Dorsal Fins

   Observe the two distinct dorsal fins, with the first spiny and the second much longer and soft-rayed. The deep notch between them is characteristic.

4. 4

   Lateral Line

   Trace the lateral line; it will be noticeably arched over the pectoral fin before straightening towards the tail.

5. 5

   Opercular Spot

   Check for a dark spot on the upper part of the operculum (gill cover), which is often present.

Esplora Corvina