Cara Mengenal Pasti Crimson Snapper

Untuk mengenal pasti Crimson Snapper (Lutjanus erythropterus), perhatikan ciri-ciri utama berikut.

Ciri-ciri Fizikal

Bentuk badan

compressed

Warna

Adults are typically reddish-pink to crimson dorsally, fading to a lighter pink or silvery-white ventrally. Fins are often reddish. Juveniles may have a series of faint, broad, reddish bars on the body and a prominent black spot below the anterior soft dorsal fin rays, which fades with age.

Jenis sisik

ctenoid

Kedudukan mulut

terminal

Ciri tersendiri

Deep body, typically 2.3-2.7 times in standard length., Large eyes, positioned high on the head., Snout profile is straight or slightly convex., Preorbital bone is broad, its width usually greater than the eye diameter., Vomerine tooth patch is anchor-shaped with a posterior extension., Absence of a deep groove from the eye to the nostril.

Sirip dorsal

Single dorsal fin with 10 spines and 13-14 soft rays. The spinous and soft-rayed portions are continuous, with a slight notch.

Sirip ekor

Caudal fin is emarginate (slightly forked) to truncate.

Sirip pektoral

Pectoral fins are relatively long, reaching to or beyond the anus, with 16-17 rays.

Sirip tersendiri

Anal fin has 3 spines and 8-9 soft rays. Pelvic fins are moderately long.

Petua Pengenalan

1. 1

   Coloration

   Look for the overall reddish-pink to crimson body color. Juveniles may have faint bars and a black spot below the dorsal fin.

2. 2

   Body Shape

   Note the relatively deep body and large eyes. The snout profile is typically straight.

3. 3

   Vomerine Teeth

   If possible to examine, the anchor-shaped vomerine tooth patch with a posterior extension is a key diagnostic feature for the genus Lutjanus, and specifically for L. erythropterus, it helps differentiate from some similar species.

4. 4

   Fin Ray Counts

   Counting the dorsal (10 spines, 13-14 soft rays) and anal (3 spines, 8-9 soft rays) fin rays can be definitive for species identification.

Terokai Crimson Snapper