How to Identify Barramundi

To identify Barramundi (Lates calcarifer), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Coloration varies with habitat and age. Generally, adults are silvery-grey to bronze on the back and flanks, fading to white on the belly. Juveniles often have a darker, more mottled appearance with a distinctive white spot on the operculum (gill cover).

Scale type

ctenoid

Mouth position

superior

Distinctive features

Large, prominent scales, Slightly concave head profile in adults, Large mouth extending beyond the posterior margin of the eye, A prominent, often dark, spot on the operculum (especially in juveniles and some adults), Two distinct dorsal fins, the first spiny and the second soft-rayed

Dorsal fin

Two dorsal fins: the first with 7-9 strong spines, the second with 10-11 soft rays. The two fins are deeply notched or separated.

Tail fin

Large, rounded caudal fin.

Pectoral fin

Large, rounded pectoral fins.

Distinctive fins

Anal fin with 3 spines and 7-8 soft rays. Pelvic fins are thoracic, located below the pectoral fins.

Identification Tips

1. 1

   Head Profile

   Adults typically have a slightly concave head profile above the eyes, distinguishing them from some similar species.

2. 2

   Opercular Spot

   A distinct, often dark, white-edged spot on the operculum (gill cover) is a key identifier, especially in juveniles.

3. 3

   Dorsal Fins

   The presence of two distinct dorsal fins, with the first being spiny and the second soft-rayed, is characteristic.

4. 4

   Mouth Size

   A large mouth that extends well past the eye is typical of this predatory species.

5. 5

   Lateral Line

   The lateral line is complete and extends onto the caudal fin.

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