How to Identify Yellowfin whiting

To identify Yellowfin whiting (Sillago schomburgkii), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Silvery-white to pale brown dorsally, fading to white ventrally. The most distinguishing feature is the bright yellow coloration on the pelvic and anal fins, often extending to the caudal fin. A faint silvery-yellow stripe may run along the lateral line.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Elongated, slender body., Small, slightly upturned mouth., Two distinct dorsal fins., Bright yellow pelvic and anal fins., Lateral line scales 67-73.

Dorsal fin

Two dorsal fins. The first dorsal fin has 10-11 spines, and the second dorsal fin has 1 spine and 17-19 soft rays. The second dorsal fin is longer than the first.

Tail fin

Caudal fin is moderately forked, often with a yellowish tinge.

Pectoral fin

Pectoral fins are relatively long and pointed, typically translucent or slightly yellowish.

Distinctive fins

Pelvic and anal fins are distinctly bright yellow, a key identifying feature. The anal fin has 2 spines and 17-19 soft rays.

Identification Tips

1. 1

   Fin Coloration

   The most reliable identifier is the bright yellow color of the pelvic and anal fins. Other whiting species typically have pale or white fins.

2. 2

   Body Shape

   Its slender, elongated body is characteristic of the Sillago genus, but combined with the fin color, it helps distinguish it from other species.

3. 3

   Mouth Position

   The small, slightly upturned mouth is adapted for feeding on benthic invertebrates.

4. 4

   Geographic Range

   Its restricted distribution to Western Australian waters is a strong indicator when identifying in the field.

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