Kako prepoznati Sabljarka

Za prepoznavanje vrste Sabljarka (Xiphias gladius), pogledajte ova ključna obilježja.

Fizičke karakteristike

Oblik tijela

torpedo

Obojenost

Dorsal side is dark brown to blackish-blue, fading to a lighter brown or silvery-white on the ventral side. Fins are typically dark brown or black.

Vrsta ljusaka

none

Položaj usta

terminal

Posebna obilježja

Long, flattened, and pointed bill (sword), which can be up to one-third of its total body length., Absence of pelvic fins in adults., A single, high, crescent-shaped caudal fin (tail fin)., Two dorsal fins, with the first being much larger and sail-like in juveniles, becoming smaller and more separated in adults., Two anal fins, with the first being larger., Absence of scales in adults, though juveniles have rough, sandpaper-like scales that are shed with growth., Large eyes, adapted for low-light conditions.

Leđna peraja

Two dorsal fins; the first is tall and rigid, located just behind the head, while the second is much smaller and located further back, near the caudal peduncle. In juveniles, the first dorsal fin is very high and sail-like, but it becomes proportionally smaller and more separated from the second fin as the fish matures.

Repna peraja

Strongly forked and crescent-shaped (lunate), indicative of a fast-swimming pelagic fish. The caudal peduncle is slender with a prominent keel on each side.

Prsna peraja

Long and narrow, set low on the body.

Posebne peraje

Adults lack pelvic fins. The anal fin is also divided into two parts, similar to the dorsal fin arrangement.

Savjeti za identifikaciju

1. 1

   The 'Sword'

   The most defining characteristic is the long, flattened, and pointed bill, which is distinctly sword-like. This distinguishes it from marlins and sailfish, which have rounded, spear-like bills.

2. 2

   Dorsal Fins

   Adult swordfish have two distinct dorsal fins, with the first being much larger and separated from the second. Juvenile swordfish have a single, continuous dorsal fin that extends along most of the back, which later separates and reduces in size.

3. 3

   Pelvic Fins

   Adult swordfish completely lack pelvic fins, a key differentiator from other billfish species which possess them.

4. 4

   Scales

   Adult swordfish are scaleless, having smooth skin. Juveniles have rough, sandpaper-like scales that are shed as they mature.

5. 5

   Caudal Keels

   Possess a single, prominent lateral keel on each side of the caudal peduncle, unlike marlins and sailfish which have two.

Istraži Sabljarka