Come identificare Permit

Per identificare Permit (Trachinotus falcatus), osserva queste caratteristiche chiave.

Caratteristiche fisiche

Forma del corpo

compressed

Colorazione

Silvery body, often with a yellowish or golden wash on the belly and fins. Dorsal and anal fins can be dusky to black, especially in larger individuals. Juveniles may have faint vertical bars.

Tipo di squame

cycloid

Posizione della bocca

inferior

Caratteristiche distintive

Deeply forked caudal fin with long, slender lobes., Prominent, sickle-shaped dorsal and anal fins, particularly in adults., Small, inferior mouth., Absence of scutes along the lateral line (distinguishing feature from many other jacks)., Often has a dark blotch at the base of the pectoral fin.

Pinna dorsale

Two dorsal fins; the first with 5-6 short, stout spines, the second with 1 spine and 17-20 soft rays. The soft dorsal fin is elongated and sickle-shaped.

Pinna caudale

Deeply forked, with long, slender lobes.

Pinna pettorale

Short and pointed, located low on the body.

Pinne distintive

Anal fin mirrors the soft dorsal fin in shape and size, with 2-3 detached spines followed by 1 spine and 16-18 soft rays. Pelvic fins are small.

Consigli per l'identificazione

1. 1

   Body Shape and Fins

   Look for the deep, compressed body and the distinctive, long, sickle-shaped dorsal and anal fins. The deeply forked tail is also a key identifier.

2. 2

   Mouth Position

   The small, inferior mouth is adapted for bottom feeding and helps distinguish it from other surface-feeding jacks.

3. 3

   Absence of Scutes

   Unlike many other carangids, Permits lack prominent scutes (bony plates) along the lateral line, which is a crucial differentiating characteristic.

4. 4

   Coloration

   Silvery body with a yellowish wash on the belly and fins. The dusky to black tips on the dorsal and anal fins are often noticeable.

Esplora Permit