Come identificare Skipjack Tuna

Per identificare Skipjack Tuna (Katsuwonus pelamis), osserva queste caratteristiche chiave.

Caratteristiche fisiche

Forma del corpo

torpedo

Colorazione

Dark purplish-blue to black on the dorsal side, silvery on the flanks and belly. The most distinctive feature is the presence of 4 to 6 prominent, dark, longitudinal stripes on the ventral side, which are absent on the dorsal surface.

Tipo di squame

none

Posizione della bocca

terminal

Caratteristiche distintive

4 to 6 dark, longitudinal stripes on the belly, Absence of scales on the body except for the corselet and lateral line, Two dorsal fins, closely set, followed by 7-9 finlets, Anal fin followed by 7-8 finlets, Small, conical teeth

Pinna dorsale

Two dorsal fins; the first is spiny and much longer than the second, which is soft-rayed. They are closely set, with a small interspace. Followed by 7-9 dorsal finlets.

Pinna caudale

Deeply forked caudal fin (tail fin) with a slender caudal peduncle and two small keels on each side.

Pinna pettorale

Short, triangular pectoral fins.

Pinne distintive

Small, triangular pelvic fins located below the pectoral fins. The anal fin is similar in shape to the second dorsal fin and is followed by 7-8 anal finlets.

Consigli per l'identificazione

1. 1

   Body Stripes

   Look for the characteristic 4 to 6 dark, longitudinal stripes on the belly, which are the most reliable distinguishing feature.

2. 2

   Dorsal Fins

   Note the two closely set dorsal fins, with the first being significantly longer and spiny.

3. 3

   Size

   Typically smaller than other commercially important tuna species like Yellowfin or Bluefin, usually reaching up to 1 meter in length and 34 kg in weight.

4. 4

   Absence of Scales

   The body is largely scaleless, except for a prominent corselet of scales around the pectoral fin and along the lateral line.

Esplora Skipjack Tuna