How to Identify Rockcod

To identify Rockcod (Pseudophycis bachus), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Typically reddish-brown to orange-red on the dorsal surface, fading to a paler pinkish-white or silvery-white on the ventral side. Fins are often reddish. Juveniles may have more pronounced mottling or banding.

Scale type

cycloid

Mouth position

terminal

Distinctive features

Single prominent barbel on the chin, approximately equal to eye diameter., Two dorsal fins, the first short and high, the second long and low., Single long anal fin., Large eyes., Smooth, small scales.

Dorsal fin

Two dorsal fins: the first is short with 9-11 rays, the second is long with 48-56 rays, extending almost to the caudal fin.

Tail fin

Rounded to slightly emarginate caudal fin.

Pectoral fin

Pectoral fins are moderately sized, with 16-19 rays.

Distinctive fins

Pelvic fins are thoracic, positioned anterior to the pectoral fins, with 6 rays, the outer two often elongated.

Identification Tips

1. 1

   Chin Barbel

   Presence of a single, prominent barbel on the chin, which is a key distinguishing feature from many other cod-like fishes.

2. 2

   Dorsal Fins

   Two distinct dorsal fins: a short, high first dorsal fin followed by a much longer, lower second dorsal fin.

3. 3

   Coloration

   Its characteristic reddish-brown to orange-red dorsal coloration, fading to a lighter belly, is a good indicator.

4. 4

   Anal Fin

   A single, very long anal fin that mirrors the second dorsal fin in length.

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