How to Identify White Seabass

To identify White Seabass (Atractoscion nobilis), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Silvery-blue to gray dorsally, fading to a silvery-white on the flanks and belly. Juveniles often have several dark, oblique bars on their sides, which fade with age.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

A prominent ridge along the midline of the belly, formed by the pelvic fins and anal fin base., A small, dark spot at the base of the pectoral fin., A large mouth extending to or beyond the posterior margin of the eye., A series of small, sharp teeth in both jaws.

Dorsal fin

Two dorsal fins; the first is short and spiny (9-10 spines), the second is long and soft-rayed (1 spine, 35-42 soft rays). A deep notch separates the two.

Tail fin

Slightly emarginate to truncate (straight-edged) caudal fin.

Pectoral fin

Moderately long and pointed (16-18 rays).

Distinctive fins

Anal fin with 2 spines and 10-12 soft rays. Pelvic fins are thoracic.

Identification Tips

1. 1

   Body Shape and Coloration

   Look for the elongated, silvery body with a darker dorsal side and lighter belly. Juveniles have distinct dark bars.

2. 2

   Dorsal Fins

   Note the two distinct dorsal fins, with a deep notch between the spiny first dorsal and the much longer soft-rayed second dorsal.

3. 3

   Pectoral Fin Spot

   A small, dark spot at the base of the pectoral fin is a key identifying feature, especially in larger individuals.

4. 4

   Mouth and Teeth

   Observe the large mouth with small, sharp teeth, indicative of its predatory nature.

Explore White Seabass