Japanese Horse Mackerel Fish

The Japanese horse mackerel fish is a species of fish which is named after mackerel in family Carangidae. It is also known as Jack mackerel, Japanese scad and Maaji.

It is very important as a commercial fish in Japan. And the fish is caught using trawls, traps, purse seines and longlines. Today it is distributed through southern Japan, Korean Peninsula to East China Sea.

And the countries with the largest catches are Japan and Korea. Read some more information about this fish species below.

Japanese Horse Mackerel Fish Characteristics

The Japanese horse mackerel fish has elongated body which is fairly compressed. Their head is large. Posterior end of upper jaw extending posteriorly to below anterior margin of eye, and the lower jaw is projected.

The adipose eyelid is well developed. Small nostrils closely situated each other, anterior nostril oval and posterior nostril crescent. They are very similar to the yellowtail horse mackerel, apart from having more gill rakers and large eyes.

Body coloration of the Japanese horse mackerel fish is grayish blue dorsally and silvery white ventrally. The dorsal and pectoral fins are dusky, pelvic and anal fins are pale and the caudal fin is yellow.

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Average body length of these fish is around 35 cm, with a maximum recorded length is 50 cm. Average live body weight of the mature fish is around 0.66 kg. Photo and info from FAO and Wikipedia.

Diet

The Japanese horse mackerel fish are feed mainly on small crustaceans as as copepods, small fish and shrimps.

Uses

The Japanese horse mackerel fish is utilized canned for human consumption. It is also used for making fishmeal.

Special Notes

The Japanese horse mackerel fish are generally found around the coast of Japan, apart from Okinawa Island. They are found generally on sandy bottoms of 50-275 m deep. The adults occur on continental waters, and the juveniles associate with drifting seaweed. It is a pretty long lived fish, with and average lifespan of around 12 years. However, review full breed profile of the Japanese horse mackerel fish in the table below.

Name	Japanese Horse Mackerel
Kingdom	Animalia
Phylum	Chordata
Class	Actinopterygii
Order	Perciformes
Family	Carangidae
Genus	Trachurus
Species	T. japonicus
Binomial Name	Trachurus japonicus
Other Names	Also known as Jack mackerel, Japanese scad and Maaji
Breed Purpose	Mainly food, also fishmeal
Special Notes	Economically important fish species, commercially catched in Japan, long lived fish with an average lifespan of 12 years, used mainly for food, also used for producing fishmeal
Weight	Around 0.66 kg
Breeding Method	Natural
Climate Tolerance	Native climates
Body Color	Grayish to silvery
Rarity	Common
Availability	Asia

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