How to Identify Cape rockcod

To identify Cape rockcod (Epinephelus andersoni), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Generally brownish-grey to olive-brown dorsally, fading to a lighter, often yellowish or whitish belly. Body, head, and fins are typically covered with numerous small, irregular dark spots or blotches. A distinctive dark saddle-like blotch is often present on the caudal peduncle. Juveniles may exhibit more pronounced banding.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Robust body with a large head and mouth., Numerous small, irregular dark spots covering the body and fins., Often a dark saddle-like blotch on the caudal peduncle., Three rows of teeth on the lower jaw., Preopercle finely serrated, with a distinct notch above the angle.

Dorsal fin

Single dorsal fin with 11 spines and 14-16 soft rays. The spinous portion is relatively low, and the soft-rayed portion is rounded.

Tail fin

Caudal fin is rounded.

Pectoral fin

Pectoral fins are relatively large and rounded, with 17-19 rays.

Distinctive fins

Pelvic fins are inserted slightly anterior to the pectoral fin base. Anal fin has 3 spines and 8 soft rays.

Identification Tips

1. 1

   Coloration and Spotting

   Look for the brownish-grey body with numerous small, irregular dark spots over the head, body, and fins. The yellowish belly is also a good indicator.

2. 2

   Caudal Peduncle Blot

   A dark, saddle-like blotch on the upper part of the caudal peduncle is often present and can aid in identification.

3. 3

   Fin Shape

   Note the rounded caudal fin and the relatively low spinous dorsal fin.

4. 4

   Mouth and Jaw

   Observe the large mouth and the presence of three rows of teeth on the lower jaw, a characteristic of many Epinephelus species.

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