Como identificar Giant Trevally

Para identificar Giant Trevally (Caranx ignobilis), observe estas características principais.

Características físicas

Formato do corpo

compressed

Coloração

Adults are typically silvery-grey to dark grey or black dorsally, fading to a lighter silvery-white ventrally. Large males can become almost entirely black during spawning. Juveniles often have faint vertical bars. A small, dark spot is usually present on the operculum.

Tipo de escama

cycloid

Posição da boca

terminal

Características distintivas

Steeply sloped head profile, Large, powerful, deeply forked caudal fin, Prominent scutes (bony plates) along the lateral line, particularly on the posterior section, Large mouth with strong jaws and numerous small, conical teeth, Two separate dorsal fins, the first with 8 spines, the second with 1 spine and 18-21 soft rays, Anal fin with 2 detached spines followed by 1 spine and 15-17 soft rays

Nadadeira dorsal

Two dorsal fins; the first is short with 8 spines, the second is longer with 1 spine and 18-21 soft rays.

Nadadeira caudal

Deeply forked and powerful, characteristic of fast-swimming pelagic predators.

Nadadeira peitoral

Long and falcate (sickle-shaped), extending beyond the origin of the second dorsal fin.

Nadadeiras características

Anal fin has two anteriorly detached spines, followed by one spine and 15-17 soft rays. The posterior section of the lateral line is strongly arched anteriorly and then straight, armed with 25-38 strong scutes.

Dicas de identificação

1. 1

   Size and Body Shape

   Large, robust body with a steep head profile. Can reach up to 170 cm (67 inches) in length and over 80 kg (176 lbs) in weight, though average adult size is closer to 80-100 cm.

2. 2

   Coloration

   Silvery-grey to dark grey/black dorsally, lighter ventrally. Large males can be almost entirely black. A small, dark opercular spot is usually present.

3. 3

   Lateral Line Scutes

   The posterior straight section of the lateral line is armed with 25-38 prominent, strong scutes, which are a key identifying feature among Caranx species.

4. 4

   Fin Structure

   Two distinct dorsal fins and a deeply forked caudal fin. The long, falcate pectoral fins are also characteristic.

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