How to Identify Threadfin Bream

To identify Threadfin Bream (Nemipterus furcosus), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Body silvery-pink to reddish dorsally, fading to silvery-white ventrally. Often has a yellowish stripe along the lateral line. Fins are typically yellowish or pinkish. The upper lobe of the caudal fin often has a yellow or reddish tip and a prominent filamentous extension.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Prominent filamentous extension on the upper lobe of the caudal fin., Yellowish stripe along the lateral line., Often a yellow blotch or streak below the eye., Small, conical teeth in both jaws.

Dorsal fin

Single dorsal fin with 10 spines and 9 soft rays. The spines are moderately strong.

Tail fin

Deeply forked caudal fin, with the upper lobe significantly longer and bearing a long, yellow or reddish filamentous extension.

Pectoral fin

Long and pointed, reaching to or beyond the anus.

Distinctive fins

Pelvic fins are relatively long, reaching to or beyond the anus, and are typically yellowish.

Identification Tips

1. 1

   Caudal Fin Filament

   Look for the distinctive long, yellow or reddish filamentous extension on the upper lobe of the caudal fin. This is the most reliable distinguishing feature.

2. 2

   Lateral Line Stripe

   Observe the yellowish stripe running along the lateral line, which can be a helpful secondary identifier.

3. 3

   Body Coloration

   Note the overall silvery-pink to reddish body color, fading to white ventrally, often with yellowish fins.

4. 4

   Fin Ray Count

   Count the dorsal fin rays (10 spines, 9 soft rays) and anal fin rays (3 spines, 7 soft rays) for definitive identification, especially when distinguishing from closely related species.

Explore Threadfin Bream