How to Identify Cero Mackerel

To identify Cero Mackerel (Scomberomorus regalis), look at these key features.

Physical Characteristics

Body shape

torpedo

Coloration

Dorsal side iridescent blue-green, fading to silvery on the flanks and belly. A distinctive pattern of yellow-orange spots and a prominent yellow-orange stripe runs along the lateral line, often broken into a series of dashes or spots posteriorly. The first dorsal fin is dark, often with a black anterior margin.

Scale type

cycloid

Mouth position

terminal

Distinctive features

Elongated, fusiform body, tapering towards the caudal peduncle., Prominent lateral line that dips sharply below the second dorsal fin., A series of 7-9 dorsal finlets and 7-10 anal finlets., Large, sharp teeth in both jaws., Absence of scales on the pectoral fin base and posterior part of the body, with small, cycloid scales anteriorly.

Dorsal fin

Two dorsal fins; the first is long and spiny (17-19 spines), the second is shorter with soft rays (15-18 rays), followed by 7-9 finlets.

Tail fin

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

Pectoral fin

Short and pointed, located high on the body.

Distinctive fins

Anal fin similar in shape and size to the second dorsal fin, with 15-18 soft rays, followed by 7-10 finlets. Pelvic fins are small and located thoracically.

Identification Tips

1. 1

   Coloration and Markings

   Look for the iridescent blue-green back, silvery sides, and the distinctive pattern of yellow-orange spots and a broken lateral stripe. This stripe is a key differentiator from Spanish Mackerel (S. maculatus) which has round, bronze spots and no prominent stripe.

2. 2

   Lateral Line

   Observe the lateral line, which makes a sharp, distinct dip below the second dorsal fin. This is a reliable identification feature among Scomberomorus species.

3. 3

   First Dorsal Fin

   The first dorsal fin is typically dark, often with a black anterior margin, and is relatively long.

4. 4

   Body Shape

   Its streamlined, torpedo-like body is indicative of a fast-swimming predator.

Explore Cero Mackerel