How to Identify Crimson Sea Bream

To identify Crimson Sea Bream (Evynnis japonica), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

The body is predominantly reddish-pink to crimson, often with a silvery sheen on the flanks and belly. Fins are typically reddish. Juveniles may exhibit faint vertical bands that fade with age.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Deep, compressed body, Relatively large eyes, Small, terminal mouth with conical teeth in the front and molar-like teeth in the back for crushing shells, Long, filamentous rays on the dorsal fin, particularly in males, which can extend significantly beyond the fin membrane (more pronounced in larger individuals)

Dorsal fin

Single dorsal fin with 11-12 spines and 10-12 soft rays. The anterior spines are typically shorter, with the 3rd or 4th spine often being the longest. In mature males, some soft rays can be greatly elongated.

Tail fin

Moderately forked caudal fin.

Pectoral fin

Long and pointed pectoral fins.

Distinctive fins

Pelvic fins are thoracic, with 1 spine and 5 soft rays. Anal fin has 3 spines and 8-9 soft rays.

Identification Tips

1. 1

   Coloration

   Look for the characteristic reddish-pink to crimson body color, often with a silvery belly.

2. 2

   Body Shape

   Note the deep, compressed body, typical of many sea breams.

3. 3

   Dorsal Fin

   Observe the dorsal fin, especially in larger individuals, for elongated soft rays, which are a key distinguishing feature, particularly in males.

4. 4

   Mouth and Teeth

   Examine the small, terminal mouth with conical teeth at the front and molar-like teeth at the back, adapted for crushing prey.

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