Cara Mengidentifikasi Kawakawa, Mackerel Tuna, Little Tuna, Tongkol Komo

Untuk mengidentifikasi Kawakawa, Mackerel Tuna, Little Tuna, Tongkol Komo (Euthynnus affinis), perhatikan ciri-ciri utama berikut.

Ciri Fisik

Bentuk tubuh

torpedo

Warna

Dorsal side is dark metallic blue to black, fading to silvery white on the belly. The most distinctive feature is a series of 3-7 prominent dark, oblique stripes or wavy lines on the back above the lateral line, extending from the pectoral fin to the caudal peduncle. There are also 1-5 dark spots below the pectoral fin, which are often fused into a single blotch.

Jenis sisik

none

Posisi mulut

terminal

Ciri khas

Robust, fusiform body, slightly compressed laterally., Small, conical teeth in a single row., Two dorsal fins, closely set; the first dorsal fin has 10-15 spines, the second has 11-15 soft rays followed by 8-10 finlets., Anal fin has 11-15 soft rays followed by 6-8 finlets., Pectoral fins are short, not reaching the interspace between the dorsal fins., Caudal fin is deeply forked., Body largely scaleless except for the corselet (a patch of large, thick scales around the pectoral fin and along the lateral line) and the lateral line itself., Maximum recorded length is about 100 cm (39 inches) FL (fork length), but commonly found around 60 cm (24 inches) FL. Maximum weight around 14 kg (31 lbs).

Sirip punggung

Two dorsal fins, closely set. First dorsal fin with 10-15 spines, second dorsal fin with 11-15 soft rays followed by 8-10 finlets.

Sirip ekor

Deeply forked caudal fin, characteristic of fast-swimming pelagic fish.

Sirip dada

Short, not reaching the interspace between the dorsal fins. Composed of 25-29 rays.

Sirip khas

Presence of dorsal and anal finlets (8-10 dorsal, 6-8 anal) posterior to the main dorsal and anal fins.

Tips Identifikasi

1. 1

   Body Shape and Coloration

   Look for a robust, torpedo-shaped body with a dark metallic blue to black back and silvery-white belly. The most reliable feature is the distinctive wavy, oblique dark stripes on the back above the lateral line.

2. 2

   Spots below Pectoral Fin

   Check for 1-5 dark spots (often fused into a single blotch) below the pectoral fin. This is a key diagnostic feature for Euthynnus affinis.

3. 3

   Finlets

   Count the finlets behind the second dorsal and anal fins (8-10 dorsal, 6-8 anal). This is typical for scombrids.

4. 4

   Corselet

   Note the presence of a well-developed corselet of scales around the pectoral fin and along the lateral line, with the rest of the body largely scaleless.

Jelajahi Kawakawa, Mackerel Tuna, Little Tuna, Tongkol Komo