How to Identify Barred Javelin

To identify Barred Javelin (Pomadasys argenteus), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Silvery-grey to silvery-white, often with 5-7 indistinct to prominent dark vertical bars on the upper flanks, especially noticeable in juveniles and sub-adults. Fins are typically dusky or yellowish. A dark spot may be present on the operculum.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Silvery body with vertical bars (more pronounced in younger individuals), Small mouth with thick lips, Presence of pharyngeal teeth used to produce 'grunting' sounds, Deeply notched dorsal fin

Dorsal fin

Single dorsal fin, deeply notched, with 12-13 spines and 13-15 soft rays. The spinous portion is longer than the soft-rayed portion.

Tail fin

Caudal fin is emarginate to slightly forked.

Pectoral fin

Pectoral fins are moderately long.

Distinctive fins

Anal fin with 3 strong spines and 7-8 soft rays. The second anal spine is notably robust and long.

Identification Tips

1. 1

   Body Coloration and Pattern

   Look for the overall silvery body color with 5-7 dark, often indistinct, vertical bars on the upper flanks. These bars are more prominent in juveniles and can fade in larger adults.

2. 2

   Dorsal Fin

   Observe the single, deeply notched dorsal fin with a longer spinous portion (12-13 spines) compared to the soft-rayed portion (13-15 rays).

3. 3

   Anal Fin Spines

   Note the three strong anal fin spines, particularly the second spine which is notably robust and often the longest.

4. 4

   Mouth and Lips

   The mouth is relatively small with thick lips.

5. 5

   Sound Production

   If handled, they may produce a distinct 'grunting' sound, characteristic of the Haemulidae family.

Explore Barred Javelin