How to Identify Black Seaperch

To identify Black Seaperch (Embiotoca jacksoni), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Highly variable, ranging from dark brown to reddish-brown, often with vertical bars or blotches. The belly is typically lighter. A distinctive feature is a dark spot on the operculum (gill cover) and a dark blotch at the base of the pectoral fin. Fins are often dark.

Scale type

cycloid

Mouth position

terminal

Distinctive features

Thick, fleshy lips, often yellowish or orange., A prominent dark spot on the operculum., A dark blotch at the base of the pectoral fin., Robust, deep body.

Dorsal fin

Single dorsal fin with 9-11 spines and 19-25 soft rays. The spinous portion is lower than the soft-rayed portion.

Tail fin

Slightly forked or truncate caudal fin.

Pectoral fin

Large, rounded pectoral fins.

Distinctive fins

Anal fin with 3 spines and 20-26 soft rays. Pelvic fins are thoracic with 1 spine and 5 soft rays.

Identification Tips

1. 1

   Coloration and Markings

   Look for the variable dark brown to reddish-brown body, often with vertical bars. The most reliable markers are the dark spot on the operculum and the dark blotch at the pectoral fin base.

2. 2

   Lips

   Observe the thick, fleshy lips, which are often yellowish or orange, a key characteristic of this species.

3. 3

   Body Shape

   Note the deep, compressed body typical of surfperches.

4. 4

   Fin Structure

   Count the dorsal fin spines and rays if possible, and note the rounded pectoral fins.

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